write a c program to swap pair of elements in an array

1/* C Program to Swap Two Arrays Without Using Temp Variable */
2#include<stdio.h>
3
4int main()
5{
6 int Size, i, a[10], b[10], Temp[10];
7  
8 printf("\nPlease Enter the Size of the Array\n");
9 scanf("%d", &Size);
10 
11 printf("\nPlease Enter the First Array Elements\n");
12 for(i = 0; i < Size; i++)
13  {
14      scanf("%d", &a[i]);
15  }
16   
17 printf("\nPlease Enter the Second Array Elements\n");
18 for(i = 0; i < Size; i ++)
19  {
20      scanf("%d", &b[i]);
21  }
22
23 //Swapping two Arrays 
24 for(i = 0; i < Size; i++)
25  {
26    a[i] = a[i] + b[i];
27    b[i] = a[i] - b[i]; 
28    a[i] = a[i] - b[i];
29  }
30
31 printf("\n a[%d] Array Elements After Swapping \n", Size); 
32 for(i = 0; i < Size; i ++)
33  {
34      printf(" %d \t ",a[i]);
35  }
36
37printf("\n\n b[%d] Array Elements After Swapping \n", Size); 
38 for(i = 0; i < Size; i ++)
39  {
40      printf(" %d \t ",b[i]);
41  }
42
43  return 0;
44} 

1write a c program to swap pair of elements