View Code of Problem 51

#include <stdio.h>
int main(){
	
  int n
  scanf("%d",&n);
  int i,j,k,t,sum=0;
  int s[10][10];
  for(i=0;i<n;i++){
    for(j=0;j<n;j++){
    	scanf("%d",&a[i][j]);
    
    }
  
  }
  for(k=0;k<n;k++){
    for(t=0;t<k+1;t++){
    	sum+=a[k][t];
    }
  }
  printf("%d",sum);



return 0;
}
/*
Main.c: In function 'main':
Main.c:5:3: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'scanf'
   scanf("%d",&n);
   ^
Main.c:5:15: error: 'n' undeclared (first use in this function)
   scanf("%d",&n);
               ^
Main.c:5:15: note: each undeclared identifier is reported only once for each function it appears in
Main.c:10:18: error: 'a' undeclared (first use in this function)
      scanf("%d",&a[i][j]);
                  ^
Main.c:7:7: warning: unused variable 's' [-Wunused-variable]
   int s[10][10];
       ^
*/