Submission #3154522

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Source Code Expand

#include<stdio.h>
#include<stdlib.h>
int gcd(int a,int b){return b?gcd(b,a%b):a;}
int main(){
  int n,m,a,b;
  scanf("%d %d %d",&n,&m,&a);
  a=abs(m-a);
  while(--n){
    scanf("%d",&b);
    a=gcd(abs(m-b),a);
  }
  printf("%d\n",a);
  return 0;
}

Submission Info

Compile Error

./Main.c: In function ‘main’:
./Main.c:6:3: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d %d %d",&n,&m,&a);
   ^
./Main.c:9:5: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d",&b);
     ^

Judge Result