Write a C program to swap two integer arrays

• C program to interchange the elements of an array.
• Now we will see how to swap two integer arrays in C programming by using third array.

Program #1: Write a C program to swap two integer arrays

1. #include <stdio.h>
2. #include <stdlib.h>
3. int main(int argc, char *argv[])
4. {
5.   
6.   int a[5],b[5],c[5],i;
7.   printf("Enter First array 5 elemnets \n");
8.   for(i=0;i<5;i++)
9.   scanf("%d",&a[i]);
10.   printf("\nEnter Second array 5 elements\n");
11.   for(i=0;i<5;i++)
12.             scanf("%d",&b[i]);
13.   printf("Arrays before swapping\n");
14.   printf("First array \n");
15.   for(i=0;i<5;i++){
16.             printf("%d ",a[i]);
17.   }
18.   printf("\nSecond array\n");
19.   for(i=0;i<5;i++){
20.             printf("%d ",b[i]);
21.   }
22.   for(i=0;i<5;i++){
23.             c[i]=a[i];
24.             a[i]=b[i];
25.             b[i]=c[i];
26.   }
27.   printf("\nArrays after swapping\n");
28.   printf("First array elements \n");
29.   for(i=0;i<5;i++){
30.             printf("%d ",a[i]);
31.   }
32.   printf("\nSecond array elements \n");
33.   for(i=0;i<5;i++){
34.             printf("%d ",b[i]);
35.   }
36.  return 0;
37. }

Output: