fork download 
  1. //Q72. Find the sum of all elements in a matrix.
  2. #include <stdio.h>
  3. int main() {
  4.     int r,c,a[10][10],i,j,sum=0;
  5.     scanf("%d%d",&r,&c);
  6.     for(i=0;i<r;i++)
  7.         for(j=0;j<c;j++){
  8.             scanf("%d",&a[i][j]);
  9.             sum += a[i][j];
  10.         }
  11.     printf("%d", sum);
  12. }
  13.  
Success #stdin #stdout 0.01s 5272KB
comments (?)
stdin 
2 3 
1 2 3
4 5 6
stdout 
21
https://ideone.com/5ZmCzH
language:
C (gcc 8.3)
created:
2 days ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!