Submission #8437714

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Source Code Expand

#include <bits/stdc++.h>
int n,k,a[100005],m;
int gcd(int x,int y){
	if (x%y==0) return y;
	return gcd(y,x%y); 
}
int main(){
	scanf("%d%d",&n,&k);
	for (int i=1;i<=n;i++) {
		scanf("%d",&a[i]);
		m=std::max(m,a[i]);
		if (k==a[i]){
			puts("POSSIBLE");
			return 0;
		}
	}
	if (k>m){
		puts("IMPOSSIBLE");
		return 0;
	}
	int j=a[1];
	for (int i=2;i<=n;i++) j=gcd(j,a[i]);
	if (k%j==0) {
		puts("POSSIBLE");
		return 0;
	}
	for (int i=1;i<=n;i++){
		if (a[i]%j){
			puts("POSSIBLE");
			return 0;
		}
	}
	puts("IMPOSSIBLE");
	return 0;
} 

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:8:21: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d",&n,&k);
                     ^
./Main.cpp:10:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d",&a[i]);
                    ^

Judge Result