View Code of Problem 51

#include<stdio.h>
#define max 1000;
int main(){
  int n;
  int a[max][max],b[max][max];
  int sum=0;
  scanf("%d",&n);
  for(int j=0;j<n;j++){
    for(int i=0;i<n;i++)
  {
    scanf("%d",&a[j][i]);
  }
  }
 for(int j=0,m=n-1;j<n;j++,m--){
    for(int i=0,l=n-1;i<n;i++,l--)
  {
    b[i][j]=a[m][l];
  }
  }
  for(int i=0;i<n;i++)
  {
    for(int j=1;j<n;j++)
      sum+=b[i][j];
    n--;
  }
  printf("%d",sum);
  return 0;
}
/*
Main.c: In function 'main':
Main.c:2:17: error: expected ']' before ';' token
 #define max 1000;
                 ^
Main.c:5:9: note: in expansion of macro 'max'
   int a[max][max],b[max][max];
         ^~~
Main.c:5:17: error: expected statement before ']' token
   int a[max][max],b[max][max];
                 ^
Main.c:5:18: error: expected expression before ',' token
   int a[max][max],b[max][max];
                  ^
Main.c:5:19: error: 'b' undeclared (first use in this function)
   int a[max][max],b[max][max];
                   ^
Main.c:5:19: note: each undeclared identifier is reported only once for each function it appears in
Main.c:2:17: error: expected ']' before ';' token
 #define max 1000;
                 ^
Main.c:5:26: note: in expansion of macro 'max'
   int a[max][max],b[max][max];
                          ^~~
Main.c:5:18: warning: left-hand operand of comma expression has no effect [-Wunused-value]
   int a[max][max],b[max][max];
                  ^
Main.c:11:17: error: 'a' undeclared (first use in this function)
     scanf("%d",&a[j][i]);
                 ^
*/