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  1. //Q79. Perform diagonal traversal of a matrix.
  2. #include <stdio.h>
  3. int main() {
  4.     int n,a[10][10],i;
  5.     scanf("%d",&n);
  6.     for(i=0;i<n;i++)
  7.         for(int j=0;j<n;j++)
  8.             scanf("%d",&a[i][j]);
  9.  
  10.     printf("Main diagonal: ");
  11.     for(i=0;i<n;i++)
  12.         printf("%d ", a[i][i]);
  13.  
  14.     printf("\nSecondary diagonal: ");
  15.     for(i=0;i<n;i++)
  16.         printf("%d ", a[i][n-i-1]);
  17. }
  18.  
Success #stdin #stdout 0s 5320KB
comments (?)
stdin 
3 3
1 2 3 
4 5 6
7 8 9
stdout 
Main diagonal: 3 4 8 
Secondary diagonal: 2 4 6
https://ideone.com/LCqnFs
language:
C (gcc 8.3)
created:
2 days ago
visibility:
public

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