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  1. #include <stdio.h>
  2. #include <stdlib.h>
  3. #include <time.h>
  4.  
  5. int main(int argc, char**argv){
  6.     int matriz[5][5];
  7.     int i, j;
  8.     int soma=0;
  9.  
  10.     srand( time( NULL ) );
  11.  
  12.     printf( "Matriz:\n" );
  13.     for( i = 0; i < 5; i++ ){
  14.         for( j = 0; j < 5; j++ ){
  15.             matriz[i][j] = 5 + rand() % 5;
  16.             printf( "%3d", matriz[i][j] );
  17.             if( i==j ){
  18.                 soma += matriz[i][j];
  19.             }
  20.         }
  21.         printf( "\n" );
  22.     }
  23.     printf( "Soma da diagonal principal: %d", soma );
  24.     return 0;
  25. }
Success #stdin #stdout 0s 2112KB
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stdin
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Standard input is empty
stdout
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Matriz:
  6  7  7  9  7
  5  9  6  7  6
  9  7  5  8  9
  8  5  7  5  6
  7  6  5  9  6
Soma da diagonal principal: 31
https://ideone.com/7dCxAS
language:
C (gcc 8.3)
created:
7 years ago
visibility:
public

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