Write a program to Implement a Linked List in C++

The user is provided with the following options..

To insert an item at begining
To insert an item at end
To insert an item at position
To traverse the list
To delete first item
To delete last item
To delete item from position
To count no. of items in list

Select To use this code as it is.. select and copy paste this code into code.cpp file :)

1. #include<conio.h>
2. #include<stdio.h>
3. #include<alloc.h>
4. #include<process.h>
5. struct node
6. { int info;
7. struct node *next;
8. };
10. typedef struct node sn;
12. void insertatbeg(sn **,int);
13. void insertatend(sn **,int);
14. void insertatpos(sn **,int,int);
15. void traverse(sn *);
16. int delfirst(sn *);
17. int dellast(sn *);
18. int delpos(sn *,int);
19. int count(sn *);
20. //Coding by: Snehil Khanor
21. //http://WapCPP.blogspot.com
22. void main()
23. { sn *p;
24. int n,i,l;
25. char ch;
26. clrscr();
27. p=NULL;
28. do
29. { printf("\n-----select an operation-----");
30. printf("\n1->To insert an item at begining<-");
31. printf("\n2->To insert an item at end<-");
32. printf("\n3->To insert an item at position<-");
33. printf("\n4->To traverse the list<-");
34. printf("\n5->To delete first item<-");
35. printf("\n6->To delete last item<-");
36. printf("\n7->To delete item from position<-");
37. printf("\n8->To count no. of items in list<-");
38. printf("\n9->Exit<-");
39. printf("\n->Enter your choice:");
40. scanf("%d",&n);
41. switch(n)
42. { case 1:printf("\n->Enter the item to insert");
43. scanf("%d",&i);
44. insertatbeg(&p,i);
45. break;
46. case 2:printf("\n->Enter the item to insert");
47. scanf("%d",&i);
48. insertatend(&p,i);
49. break;
50. case 3:printf("\n->Enter the item to insert");
51. scanf("%d",&i);
52. printf("\n->Enter the position");
53. scanf("%d",&l);
54. insertatpos(&p,i,l);
55. break;
56. case 4:traverse(p);
57. break;
58. case 5:i=delfirst(p);
59. printf("\nItem deleted is %d.",i);
60. break;
61. case 6:i=dellast(p);
62. printf("\nItem deleted is %d.",i);
63. break;
64. case 7:printf("\n->Enter the position");
65. scanf("%d",&l);
66. i=delpos(p,l);
67. printf("\nItem deleted is %d.",i);
68. break;
69. case 8:i=count(p);
70. printf("\nNumber of nodes in list are %d.",i);
71. break;
72. case 9:exit(0);
73. break;
74. default:printf("\n->You have entered wrong choice");
75. }
76. printf("\n->Do you want to continue/exit(y/n)");
77. fflush(stdin);
78. scanf("%c",&ch);
79. } while((ch=='y')||(ch=='Y'));
80. getch();
81. }
83. int count(sn *p)
84. { sn *temp;
85. int c=1;
86. temp=p;
87. while((temp->next)!=NULL)
88. { c++;
89. temp=temp->next;
90. }
91. return c;
92. }
94. void insertatbeg(sn **p,int item)
95. { sn *ptr;
96. ptr=(sn *)malloc(sizeof(sn));
97. ptr->info=item;
98. if(*p==NULL)
99. ptr->next=NULL;
100. else
101. ptr->next=*p;
102. *p=ptr;
103. }
105. void insertatend(sn **p,int item)
106. { sn *ptr,*temp;
107. ptr=(sn *)malloc(sizeof(sn));
108. ptr->info=item;
109. ptr->next=NULL;
110. if(*p==NULL)
111. *p=ptr;
112. else
113. { temp=*p;
114. while((temp->next)!=NULL)
115. temp=temp->next;
116. temp->next=ptr;
117. }
118. }
120. void insertatpos(sn **p,int item,int loc)
121. { sn *ptr,*temp,*s;
122. int i,c;
123. temp=*p;
124. ptr=(sn *)malloc(sizeof(sn));
125. ptr->info=item;
126. c=count(*p);
127. if(loc>c)
128. printf("\nList is short,Item can't inserted");
129. else
130. {
131. for(i=0;i<loc-1;i++)
132. { s=temp;
133. temp=temp->next;
134. }
135. ptr->next=s->next;
136. s->next=ptr;
137. }
138. }
140. //Coding by: Snehil Khanor
141. //http://WapCPP.blogspot.com
142. void traverse(sn *p)
143. { sn *temp;
144. if(p==NULL)
145. printf("\nList is empty.");
146. else
147. {
148. temp=p;
149. while((temp->next)!=NULL)
150. { printf("\nno.=%d",temp->info);
151. temp=temp->next;
152. }
153. printf("\nno.=%d",temp->info);
154. }
155. }
157. int delfirst(sn *p)
158. { int item;
159. sn *temp;
160. if(p==NULL)
161. { printf("\nList is empty");
162. return 0;
163. }
164. else
165. { temp=p;
166. p=p->next;
167. item=temp->info;
168. free(temp);
169. return item;
170. }
171. }
173. int dellast(sn *p)
174. { int item;
175. sn *temp,*s;
176. if(p==NULL)
177. { printf("\nList is empty");
178. return 0;
179. }
180. else
181. { temp=p;
182. while((temp->next)!=NULL)
183. { s=temp;
184. temp=temp->next;
185. }
186. item=temp->info;
187. s->next=NULL;
188. free(temp);
189. return item;
190. }
191. }
193. int delpos(sn *p,int loc)
194. { int item,i,c;
195. sn *temp,*s;
196. c=count(p);
197. if(p==NULL)
198. { printf("\nList is empty");
199. return 0;
200. }
201. else
202. { if(loc>c)
203. { printf("\nItem is not in list.");
204. return 0;
205. }
206. else
207. { temp=p;
208. for(i=0;i<loc-1;i++)
209. { s=temp;
210. temp=temp->next;
211. }
212. item=temp->info;
213. s->next=temp->next;
214. free(temp);
215. return item;
216. }
217. }
218. }

Write a program to Implement a Queue in C++

User is asked to Insert into.. Delete from or Display the entire queue..

Select To use this code as it is.. select and copy paste this code into code.cpp file :)

1. #include<stdio.h> 
2. #include<conio.h> 
3. #include<process.h> 
4. int queue[5]; 
5. long front,rear; 
6. void initqueue(); 
7. void display(); 
8. void main() 
9. { 
10. int choice,info; 
11. clrscr(); 
12. while(1) 
13. { 
14. clrscr(); 
15. printf(" MENU \n"); 
16. printf("1.Insert an element in queue\n"); 
17. printf("2.Delete an element from queue\n"); 
18. printf("3.Display the queue\n"); 
19. printf("4.Exit!\n"); 
20. printf("Your choice: "); 
21. scanf("%i",&choice); 
22. //Coding by: Snehil Khanor  
23. //http://WapCPP.blogspot.com  
24. switch(choice) 
25. { 
26. case 1:if(rear<4) 
27. { 
28. printf("enter the number: "); 
29. scanf("%d",&info); 
30. if (front==-1) 
31. { 
32. front=0; 
33. rear=0; 
34. } 
35. else 
36. rear=rear+1; 
37. queue[rear]=info; 
38. } 
39. else 
40. printf("queue is full"); 
41. getch(); 
42. break; 
43. case 2: int info; 
44. if(front!=-1) 
45. { 
46. info=queue[front]; 
47. if(front==rear) 
48. { 
49. front=-1; 
50. rear=-1; 
51. } 
52. else 
53. front=front+1; 
54. printf("no deleted is = %d",info); 
55. } 
56. else 
57. printf("queue is empty"); 
58. getch(); 
59. break; 
60. case 3: display(); 
61. getch(); 
62. break; 
63. case 4: exit(1); 
64. break; 
65. default:printf("You entered wrong choice!"); 
66. getch(); 
67. break; 
68. } 
69. } 
70. } 
71. void initqueue() 
72. { 
73. front=rear=-1; 
74. } 
75. void display() 
76. { 
77. int i; 
78. for(i=front;i<=rear;i++) 
79. printf("%i\n",queue[i]); 
80. } 

Write a program to Implement a stack in C++

User is asked to PUSH, POP , or TRAVERSE.. PUSH is to add items to the Stack, POP is to remove item from the Stack, and TRAVERSE is to traverse the whole Stack

Select To use this code as it is.. select and copy paste this code into code.cpp file :)

1. #include<stdio.h> 
2. #include<conio.h> 
3. #include<process.h> 
4. #define MAXSIZE 10 
5. void push(); 
6. int pop(); 
7. void traverse(); 
8. int stack[MAXSIZE]; 
9. int Top=-1; 
10. void main() 
11. { 
12. int choice; 
13. char ch; 
14. do 
15. { 
16. clrscr(); 
17. printf("\n1. PUSH "); 
18. printf("\n2. POP "); 
19. printf("\n3. TRAVERSE "); 
20. printf("\nEnter your choice "); 
21. scanf("%d",&choice); 
22. switch(choice) 
23. { 
24. case 1: push(); 
25. break; 
26. case 2: printf("\nThe deleted element is %d ",pop()); 
27. break; 
28. case 3: traverse(); 
29. break; 
30. default: printf("\nYou Entered Wrong Choice"); 
31. } 
32. printf("\nDo You Wish To Continue (Y/N)"); 
33. fflush(stdin); 
34. scanf("%c",&ch); 
35. } 
36. while(ch=='Y' || ch=='y'); 
37. } 
38. //Coding by: Snehil Khanor  
39. //http://WapCPP.blogspot.com  
40. void push() 
41. { 
42. int item; 
43. if(Top == MAXSIZE - 1) 
44. { 
45. printf("\nThe Stack Is Full"); 
46. getch(); 
47. exit(0); 
48. } 
49. else 
50. { 
51. printf("Enter the element to be inserted "); 
52. scanf("%d",&item); 
53. Top= Top+1; 
54. stack[Top] = item; 
55. } 
56. } 
57.  
58. int pop() 
59. { 
60. int item; 
61. if(Top == -1) 
62. { 
63. printf("The stack is Empty"); 
64. getch(); 
65. exit(0); 
66. } 
67. else 
68. { 
69. item = stack[Top]; 
70. Top = Top-1; 
71. } 
72. return(item); 
73. } 
74.  
75. void traverse() 
76. { 
77. int i; 
78. if(Top == -1) 
79. { 
80. printf("The Stack is Empty"); 
81. getch(); 
82. exit(0); 
83. } 
84. else 
85. { 
86. for(i=Top;i>=0;i--) 
87. { 
88. printf("Traverse the element "); 
89. printf("%d\n",stack[i]); 
90. } 
91. } 
92. } 

Write a program to sort elements of array using Selection Sorting

Size of array is taken from user.. Elements are entered by user in any order... Sorting is performed..

Select To use this code as it is.. select and copy paste this code into code.cpp file :)

1. #include<stdio.h> 
2. #include<conio.h> 
3. void main() 
4. { 
5. int a[100],n,i,j,temp,loc,min; 
6. clrscr(); 
7. printf("\How many elements:\n"); 
8. scanf("%d",&n); 
9. printf("Enter the element of array\n"); 
10. for(i=0;i<=n-1;i++) 
11. { 
12. scanf("%d",&a[i]); 
13. } 
14. min=a[0]; 
15. //Coding by: Snehil Khanor  
16. //http://WapCPP.blogspot.com  
17. for(i=0;i<=n-1;i++) 
18. { 
19. min=a[i]; 
20. loc=i; 
21. for(j=i+1;j<=n-1;j++) 
22. { 
23. if(a[j]<min) 
24. { 
25. min=a[j]; 
26. loc=j; 
27. } 
28. } 
29. if(loc!=1) 
30. { 
31. temp=a[i]; 
32. a[i]=a[loc]; 
33. a[loc]=temp; 
34. } 
35.  
36. } 
37. printf("The number after selection sorting are:\n"); 
38. for(i=0;i<=n-1;i++) 
39. { 
40. printf("%d\n",a[i]); 
41. } 
42. getch(); 
43. } 

Write a program to sort elements of array using Quick Sort

Size of array is taken from user.. Elements are entered by user in any order... Sorting is performed..

Select To use this code as it is.. select and copy paste this code into code.cpp file :)

1. #include<stdio.h> 
2. #include<conio.h> 
3. #define max 100 
4. int a[max],n,i,l,h; 
5. void main() 
6. { 
7. void input(void); 
8. input(); 
9. getch(); 
10. } 
11.  
12. void input(void) 
13. { 
14. void output(int a[],int n); 
15. void quick_sort(int a[],int l,int h); 
16. printf("How many elements in the array : "); 
17. scanf("%d",&n); 
18. printf("\n"); 
19. printf("Enter the elemennts : \n"); 
20. for(i=0;i<=n-1;i++) 
21. { 
22. scanf("%d",&a[i]); 
23. } 
24. l=0; 
25. h=n-1; 
26. quick_sort(a,l,h); 
27. printf("Sorted Array :\n "); 
28. output(a,n); 
29. } 
30.  
31. void quick_sort(int a[],int l, int h) 
32. { 
33. int temp,key,low,high; 
34. low=l; 
35. high=h; 
36. key=a[(low+high)/2]; 
37. do 
38. { 
39. while(key>a[low]) 
40. { 
41. low++; 
42. } 
43. while(key<a[high]) 
44. { 
45. high--; 
46. } 
47. if(low<=high) 
48. { 
49. temp=a[low]; 
50. a[low++]=a[high]; 
51. a[high--]=temp; 
52. } 
53. //Coding by: Snehil Khanor 
54. //http://WapCPP.blogspot.com 
55. } while(low<=high); 
56. if(l<high) 
57. quick_sort(a,l,high); 
58. if(low<h) 
59. quick_sort(a,low,h); 
60. } 
61. void output(int a[],int n) 
62. { 
63. for(i=0;i<=n-1;i++) 
64. { 
65. printf("%d\n",a[i]); 
66. } 
67. }

Write a program to sort elements of array using Insert Sorting

Size of array is taken from user.. Elements are entered by user in any order... Sorting is performed..

Select To use this code as it is.. select and copy paste this code into code.cpp file :)

1. #include<stdio.h> 
2. main() 
3. { 
4. int a[100],n,k,i,j,temp; 
5. printf("How many elements: \n"); 
6. scanf("%d",&n); 
7. printf("Enter the element of array: \n"); 
8. for(i=0;i<=n-1;i++) 
9. scanf("%d",&a[i]); 
10. for(k=1;k<=n-1;k++) 
11. { 
12. temp=a[k]; 
13. j=k-1; 
14. //Coding by: Snehil Khanor 
15. //http://WapCPP.blogspot.com 
16. while((temp<a[j])&&(j>=0)) 
17. { 
18. a[j+1]=a[j]; 
19. j=j-1; 
20. } 
21. a[j+1]=temp; 
22. } 
23. printf("Elements of array after sorting: \n"); 
24. for(i=0;i<=n-1;i++) 
25. printf("%d\n",a[i]); 
26. getch();
27. } 

B.E / B.TECH Result May 2009 MDU

Herez Long Awaited B.E. / B.TECH MDU May 2009 Result

:)

1. Roll No. 250001 - 278000
2. Roll No. 278001 - 297000
3. Roll No. 297001 - 322000
4. Roll No. 322001 - 351900
5. Roll No. 351901 - onward

Best Of Luck!!!

Difference Between a++ and ++a

The difference between a++ and ++a, is that when we use a++ in a program and then the effect would be on the next statement while the ++a, effect is that on the current line not on the next statement.

Output:

Example code:

Select To use this code as it is.. select and copy paste this code into code.cpp file :)

1. #include<iostream.h>
2. #include<conio.h>
3. void main()
4. {
5. clrscr();
6. int a,b;
7. a=1;
8. cout<<a<<endl;
9. cout<<a++<<endl;
10. cout<<a<<endl<<endl;
11. b=5;
12. cout<<b<<endl;
13. cout<<++b<<endl;
14. cout<<b<<endl;
15. getch();
16. }

Write a program to store Name, Age and address of student

Name age and address of students are stored in a string..

Select To use this code as it is.. select and copy paste this code into code.cpp file :)

1. #include<iostream.h>
2. #include<conio.h>
3. #include<stdio.h>
4. void main()
5. {
6. clrscr();
7. char name[100],age[100],address[100];
8. cout<<"Please enter a name: ";
9. gets(name);
10. cout<<"Please enter age: ";
11. //Coding by: Snehil Khanor
12. //http://WapCPP.blogspot.com
13. gets(age);
14. cout<<"Please eneter address: ";
15. gets(address);
16. cout<<endl<<endl<<"Name is: "<<name<<endl<<"Age is: "<<age<<endl<<"Address is:
17. "<<address;
18. getch();
19. }

Write a program to count number of words in a line

A line is taken from user and number of words is calculated..

Select To use this code as it is.. select and copy paste this code into code.cpp file :)

1. #include<iostream.h>
2. #include<conio.h>
3. #include<stdio.h>
4. void main()
5. {
6. clrscr();
7. char str[100];
8. int w=1;
9. cout<<"Please enter a String: ";
10. gets(str);
11. //Coding by: Snehil Khanor
12. //http://WapCPP.blogspot.com
13. for (int i=0;str[i]!='\0';i++)
14. {
15. if(str[i]==' ')
16. w++;
17. }
18. cout<<"There are "<<w<<" words.";
19. getch();
20. }

Write a program to count the number of vowels in a word

A word is taken from the user and number of vowels is determined..

Select To use this code as it is.. select and copy paste this code into code.cpp file :)

1. #include<iostream.h>
2. #include<conio.h>
3. void main()
4. {
5. clrscr();
6. char str[10];
7. int v=0;
8. cout<<"Please enter a string: ";
9. cin>>str;
10. //Coding by: Snehil Khanor
11. //http://WapCPP.blogspot.com
12. for(int i=0;str[i]!='\0';i++)
13. {
14. if(str[i]=='a'||str[i]=='A'||str[i]=='e'||str[i]=='E'||str[i]=='i'||str[i]=='I'||str[i]=='o'||str[i]=='O'||str[i]=='u'||str[i]=='U')
15. v++;
16. }
17. cout<<v<<" Number of Vowels are there.";
18. getch();
19. }

Write a program to check a character is in upper case or lower case

A character is taken from user and is checked if it is in UPPER CASE or lower case..

Select To use this code as it is.. select and copy paste this code into code.cpp file :)

1. #include<iostream.h>
2. #include<conio.h>
3. void main()
4. {
5. clrscr();
6. char x;
7. cout<<"Please enter a character: ";
8. cin>>x;
9. //Coding by: Snehil Khanor
10. //http://WapCPP.blogspot.com
11. if(x>='A'&&x<='Z')
12. cout<<x<<" is in UPPER CASE:)";
13. else
14. cout<<x<<" is in lower case :)";
15. getch();
16. }

Write a program to store a character and check it is vowel or consonant

A character is taken from user.. and is checked if it is a vowel or a consonant..

Select To use this code as it is.. select and copy paste this code into code.cpp file :)

1. #include<iostream.h>
2. #include<conio.h>
3. void main()
4. {
5. clrscr();
6. //Coding by: Snehil Khanor
7. //http://WapCPP.blogspot.com
8. char x;
9. cout<<"Please enter a character: ";
10. cin>>x;
11. if(x=='a'||x=='A'||x=='e'||x=='E'||x=='i'||x=='I'||x=='o'||x=='O'||x=='u'||x=='U')
12. cout<<x<<" is a Vowel :)";
13. else
14. cout<<x<<" is a consonant :)";
15. getch();
16. }

Write a program to find transpose of a matrix

A matrix is taken from user.. and its Transpose is displayed as output..

Select To use this code as it is.. select and copy paste this code into code.cpp file :)

1. #include<iostream.h>
2. #include<conio.h>
3. void main()
4. {
5. clrscr();
6. int a[10][10],m,n,i,j;
7. cout<<"Enter number of rows: ";
8. cin>>m;
9. cout<<"Enter number of coloumns: ";
10. cin>>n;
11. //Coding by: Snehil Khanor
12. //http://WapCPP.blogspot.com
13. if(m!=n)
14. {
15. cout<<"Matrix not square so Transpose not possible :(";
16. }
17. else
18. {
19. cout<<endl<<"Enter elements of matrix: "<<endl;
20. for(i=0;i<m;i++)
21. {
22. for(j=0;j<n;j++)
23. {
24. cout<<"Enter element a"<<i+1<<j+1<<": ";
25. cin>>a[i][j];
26. }
27. }
28. cout<<endl<<"Displaying Matrix: "<<endl<<endl;
29. for(i=0;i<m;i++)
30. {
31. for(j=0;j<n;j++)
32. {
33. cout<<a[i][j]<<" ";
34. }
35. cout<<endl<<endl;
36. }
37. cout<<endl<<"Displaying Matrix Transpose: "<<endl<<endl;
38. for(i=0;i<m;i++)
39. {
40. for(j=0;j<n;j++)
41. {
42. cout<<a[j][i]<<" ";
43. }
44. cout<<endl<<endl;
45. }
46. }
47. getch();
48. }

Write a program for multiplication of two matrices

Two matrices are taken from user..multiplication matrix is displayed as output.

Select To use this code as it is.. select and copy paste this code into code.cpp file :)

1. #include<iostream.h>
2. #include<conio.h>
3. void main()
4. {
5. clrscr();
6. int a[10][10],b[10][10],c[10][10],m,n,o,p,i,j;
7. cout<<"Enter number of rows of A: ";
8. cin>>m;
9. cout<<"Enter number of coloumns of A: ";
10. cin>>n;
11. cout<<endl<<"Enter elements of matrix A: "<<endl;
12. //Coding by: Snehil Khanor
13. //http://WapCPP.blogspot.com
14. for(i=0;i<m;i++)
15. {
16. for(j=0;j<n;j++)
17. {
18. cout<<"Enter element a"<<i+1<<j+1<<": ";
19. cin>>a[i][j];
20. }
21. }
22. cout<<endl<<"Enter number of rows of B: ";
23. cin>>o;
24. cout<<"Enter number of coloumns of B: ";
25. cin>>p;
26. cout<<endl<<"Enter elements of matrix B: "<<endl;
27. for(i=0;i<o;i++)
28. {
29. for(j=0;j<p;j++)
30. {
31. cout<<"Enter element b"<<i+1<<j+1<<": ";
32. cin>>b[i][j];
33. }
34. }
36. cout<<endl<<"Displaying Matrix A: "<<endl<<endl;
37. for(i=0;i<m;i++)
38. {
39. for(j=0;j<n;j++)
40. {
41. cout<<a[i][j]<<" ";
42. }
43. cout<<endl<<endl;
44. }
45. cout<<endl<<"Displaying Matrix B: "<<endl<<endl;
46. for(i=0;i<o;i++)
47. {
48. for(j=0;j<p;j++)
49. {
50. cout<<b[i][j]<<" ";
51. }
52. cout<<endl<<endl;
53. }
54. if(n==o)
55. {
56. for(i=0;i<m;i++)
57. {
58. for(j=0;j<p;j++)
59. {
60. c[i][j]=0;
61. for(int k=0;k<n;k++)
62. {
63. c[i][j]=c[i][j]+a[i][k]*b[k][j];
64. }
65. }
66. }
67. cout<<endl<<"Matrix A * Matrix B = Matrix C: "<<endl<<endl;
68. for(i=0;i<m;i++)
69. {
70. for(j=0;j<p;j++)
71. {
72. cout<<c[i][j]<<" ";
73. }
74. cout<<endl<<endl;
75. }
76. }
77. else
78. cout<<"Multiplication not possible :(";
79. getch();
80. }

Write a program to find Difference of two matrix

Two matrix are taken from user.. Substraction matrix is displayed as output..

Select To use this code as it is.. select and copy paste this code into code.cpp file :)

1. #include<iostream.h>
2. #include<conio.h>
3. void main()
4. {
5. clrscr();
6. int a[10][10],b[10][10],c[10][10],m,n,i,j;
7. cout<<"Enter number of rows: ";
8. cin>>m;
9. cout<<"Enter number of coloumns: ";
10. cin>>n;
11. cout<<endl<<"Enter elements of matrix A: "<<endl;
12. //Coding by: Snehil Khanor
13. //http://WapCPP.blogspot.com
14. for(i=0;i<m;i++)
15. {
16. for(j=0;j<n;j++)
17. {
18. cout<<"Enter element a"<<i+1<<j+1<<": ";
19. cin>>a[i][j];
20. }
21. }
22. cout<<endl<<"Enter elements of matrix B: "<<endl;
23. for(i=0;i<m;i++)
24. {
25. for(j=0;j<n;j++)
26. {
27. cout<<"Enter element b"<<i+1<<j+1<<": ";
28. cin>>b[i][j];
29. }
30. }
31. //Coding by: Snehil Khanor
32. //http://WapCPP.blogspot.com
33. cout<<endl<<"Displaying Matrix A: "<<endl<<endl;
34. for(i=0;i<m;i++)
35. {
36. for(j=0;j<n;j++)
37. {
38. cout<<a[i][j]<<" ";
39. }
40. cout<<endl<<endl;
41. }
42. cout<<endl<<"Displaying Matrix B: "<<endl<<endl;
43. for(i=0;i<m;i++)
44. {
45. for(j=0;j<n;j++)
46. {
47. cout<<b[i][j]<<" ";
48. }
49. cout<<endl<<endl;
50. }
51. cout<<endl<<"Matrix A - Matrix B = Matrix C: "<<endl<<endl;
52. for(i=0;i<m;i++)
53. {
54. for(j=0;j<n;j++)
55. {
56. cout<<a[i][j]-b[i][j]<<" ";
57. }
58. cout<<endl<<endl;
59. }
60. getch();
61. }

Write a program to find sum matrix of two matrix

Two matrix are taken from user.. Sum matrix is displayed as output..

Select To use this code as it is.. select and copy paste this code into code.cpp file :)

1. #include<iostream.h>
2. #include<conio.h>
3. void main()
4. {
5. clrscr();
6. int a[10][10],b[10][10],c[10][10],m,n,i,j;
7. cout<<"Enter number of rows: ";
8. cin>>m;
9. cout<<"Enter number of coloumns: ";
10. cin>>n;
11. cout<<endl<<"Enter elements of matrix A: "<<endl;
12. for(i=0;i<m;i++)
13. {
14. for(j=0;j<n;j++)
15. {
16. cout<<"Enter element a"<<i+1<<j+1<<": ";
17. cin>>a[i][j];
18. }
19. }
20. cout<<endl<<"Enter elements of matrix B: "<<endl;
21. //Coding by: Snehil Khanor
22. //http://WapCPP.blogspot.com
23. for(i=0;i<m;i++)
24. {
25. for(j=0;j<n;j++)
26. {
27. cout<<"Enter element b"<<i+1<<j+1<<": ";
28. cin>>b[i][j];
29. }
30. }
32. cout<<endl<<"Displaying Matrix A: "<<endl<<endl;
33. for(i=0;i<m;i++)
34. {
35. for(j=0;j<n;j++)
36. {
37. cout<<a[i][j]<<" ";
38. }
39. cout<<endl<<endl;
40. }
41. cout<<endl<<"Displaying Matrix B: "<<endl<<endl;
42. for(i=0;i<m;i++)
43. {
44. for(j=0;j<n;j++)
45. {
46. cout<<b[i][j]<<" ";
47. }
48. cout<<endl<<endl;
49. }
50. cout<<endl<<"Matrix A + Matrix B = Matrix C: "<<endl<<endl;
51. for(i=0;i<m;i++)
52. {
53. for(j=0;j<n;j++)
54. {
55. cout<<a[i][j]+b[i][j]<<" ";
56. }
57. cout<<endl<<endl;
58. }
60. getch();
61. }

Write a program to store elements in m x n 2D array (Matrix)

m(row) and n(coloumns) are taken from user.. Elements are taken from user.. matrix is displayed in tabular form..

This should be your first program for Matrix.

Select To use this code as it is.. select and copy paste this code into code.cpp file :)

1. #include<iostream.h>
2. #include<conio.h>
3. void main()
4. {
5. clrscr();
6. int a[10][10],m,n,i,j;
7. cout<<"Enter number of rows: ";
8. cin>>m;
9. cout<<"Enter number of coloumns: ";
10. cin>>n;
11. cout<<endl<<"Enter elements of matrix: "<<endl;
12. //Coding by: Snehil Khanor
13. //http://WapCPP.blogspot.com
14. for(i=0;i<m;i++)
15. {
16. for(j=0;j<n;j++)
17. {
18. cout<<"Enter element a"<<i+1<<j+1<<": ";
19. cin>>a[i][j];
20. }
21. }
22. cout<<endl<<"Displaying Matrix: "<<endl<<endl;
23. for(i=0;i<m;i++)
24. {
25. for(j=0;j<n;j++)
26. {
27. cout<<a[i][j]<<" ";
28. }
29. cout<<endl<<endl;
30. }
31. getch();
32. }

Write a program to Insert and Delete elemnt of an array

Size of array is taken from user.. Elements are Entered.. Array is shown.. user is prompted for adding another element.. new element is added at desired position.. user is prompted to delete an element.. Element is deleted from entered position..

Select To use this code as it is.. select and copy paste this code into code.cpp file :)

1. #include<conio.h>
2. #include<iostream.h>
3. void main()
4. {
5. clrscr();
6. int a[100],i,pos,num,item,size;
7. cout<<"How many element: ";
8. cin>>size;
9. cout<<"Enter the elements of array: "<<endl;
10. for(i=0;i<size;i++)
11. cin>>a[i];
12. cout<<endl;
13. cout<<"Now Array is: "<<endl;
14. for(i=0;i<size;i++)
15. cout<<"Element at position "<<i+1<<" is "<<a[i]<<endl;
16. cout<<endl<<"Press any key to add another element"<<endl<<endl;
17. getch();
19. //Coding by: Snehil Khanor
20. //http://WapCPP.blogspot.com
21. cout<<"Enter another element: ";
22. cin>>num;
23. cout<<"Enter position number: ";
24. cin>>pos;
25. cout<<endl;
26. --pos;
27. for(i=size;i>=pos;i--)
28. a[i+1]=a[i];
29. a[pos]=num;
30. size++;
31. cout<<"New Array: "<<endl;
32. for(i=0;i<size;i++)
33. cout<<"Element at position "<<i+1<<" is "<<a[i]<<endl;
34. cout<<endl<<"Press any key to delete any element"<<endl<<endl;
35. getch();
38. //Coding by: Snehil Khanor
39. //http://WapCPP.blogspot.com
40. cout<<"Enter position number to delete: ";
41. cin>>pos;
42. --pos;
43. item=a[pos];
44. for(i=pos;i<size;i++)
45. a[i]=a[i+1];
46. size--;
47. cout<<"Deleted element: "<<item<<endl;
48. cout<<endl<<"New array: "<<endl;
49. for(i=0;i<size;i++)
50. cout<<"Element at position "<<i+1<<" is "<<a[i]<<endl;
51. getch();
52. }

Write a program to sort elements of array (bubble Sorting)

Size of array is taken from user.. Elemnts are entered by user.. Elements are sorted in ascending order..

Select To use this code as it is.. select and copy paste this code into code.cpp file :)

1. #include<conio.h>
2. #include<iostream.h>
3. void main()
4. {
5. clrscr();
6. int a[100],i,n,j,temp;
7. cout<<"How many element: ";
8. cin>>n;
9. cout<<"Enter the elements of array: "<<endl;
10. for(i=0;i<n;i++)
11. cin>>a[i];
12. cout<<"The elements of array Before Sorting: "<<endl;
13. //Coding by: Snehil Khanor
14. //http://WapCPP.blogspot.com
15. for(i=0;i<n;i++)
16. cout<<a[i]<<" ";
17. cout<<endl;
18. for(i=0;i<n;i++)
19. {
20. for(j=0;j<n-1-i;j++)
21. {
22. if(a[j]>a[j+1])
23. {
24. temp=a[j];
25. a[j]=a[j+1];
26. a[j+1]=temp;
27. }
28. }
29. }
30. cout<<"Elements of array After Sorting: "<<endl;
31. for(i=0;i<n;i++)
32. cout<<a[i]<<" ";
33. getch();
34. }