Submission #3166775

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Source Code Expand

#include <algorithm>
#include <cstdlib>
#define REP(i,n) for(int i=0; i<(int)(n); i++)

#include <cstdio>
inline int getInt(){ int s; scanf("%d", &s); return s; }

#include <set>

using namespace std;

int main(){
  const int n = getInt();
  const int x = getInt();

  int ans = 1;
  REP(i,n){
    const int a = std::abs(getInt() - x);
    if(i == 0) ans = a;
    else ans = __gcd(ans, a);
  }

  printf("%d\n", ans);
  return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int getInt()’:
./Main.cpp:6:44: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
 inline int getInt(){ int s; scanf("%d", &s); return s; }
                                            ^

Judge Result