Submission #3154467

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Source Code Expand

#include<cstdio>
#include<algorithm>

using namespace std;

int gcd(int a, int b){
	return b == 0 ? a : gcd(b, a % b);
}

int main(){
	int n, X; scanf("%d %d", &n, &X);
	int x; scanf("%d", &x);
	int res = abs(X - x);
	for(int i = 1; i < n; i++){
		scanf("%d", &x);
		res = gcd(res, abs(X - x));
	}
	printf("%d\n", res);
	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:11:34: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  int n, X; scanf("%d %d", &n, &X);
                                  ^
./Main.cpp:12:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  int x; scanf("%d", &x);
                        ^
./Main.cpp:15:18: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &x);
                  ^

Judge Result