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  1. #include <stdio.h>
  2.  
  3. int main(void) {
  4. 	int arr[8]={1,2,3,4,5,6,7,8};
  5.     int x=10;
  6.     int count=0;
  7.  
  8.      for(int i=0;i<8;i++){
  9.          for(int j=i+1;j<8;j++){
  10.             if( i+j==x) count++;
  11.             else continue;
  12.         }
  13.       }
  14.       printf("The no. of pairs are:%d",count);
  15. 	return 0;
  16. }
  17.  
Success #stdin #stdout 0.01s 5296KB
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Standard input is empty
stdout
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The no. of pairs are:2
https://ideone.com/2v2D8j
language:
C (gcc 8.3)
created:
12 hours ago
visibility:
public

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