Submission #187298

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Source Code Expand

#include <cstdio>
#include <cctype>
#include <cstring>
#include <cstdlib>
#include <set>
#include <queue>
#include <algorithm>
#include <utility>
using namespace std;

int main() {
	set<int> S;
	queue<int> Q;
	int N;
	int NG1,NG2,NG3;
	scanf("%d",&N);
	scanf("%d %d %d",&NG1,&NG2,&NG3);
	if(N==NG1||N==NG2||N==NG3) {printf("NO\n");return 0;}
	Q.push(N);
	S.insert(N);
	while(!Q.empty()) {
		int f=Q.front();Q.pop();
		if(f==0) {printf("YES\n");return 0;}
		for(int i=1;i<=3;i++) {
			if((f-i)>=0&&(f-i)!=NG1&&(f-i)!=NG2&&(f-i)!=NG3&&S.find(f-i)==S.end()) {
				Q.push(f-i);
				S.insert(f-i);
			}
		}
		printf("NO\n");
	}
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:16:16: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
./Main.cpp:17:34: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]

Judge Result