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  1. #include <stdio.h>
  2.  
  3. int main(){
  4. 	int matrix [3][3] = { { 1,2,3}, {6,7,8} , { 11,12,13} };
  5. 	int i, j;
  6. 	int sum=0;
  7. 	for (i = 0; i < 3; i++) 
  8. 	{ 
  9. 		for (j = 0; j < 3; j++) 
  10. 		{
  11. 			if(i==j){
  12. 				sum+=matrix[i][j];
  13. 		    }
  14. 		}
  15. 	    //printf("\n");
  16. 	}
  17. 	printf("Value of Diagonal: %d",sum);
  18. }
Success #stdin #stdout 0s 5324KB
comments (?)
stdin 
Standard input is empty
stdout 
Value of Diagonal: 21
https://ideone.com/FHP2xt
language:
C (gcc 8.3)
created:
1 hour ago
visibility:
public

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