제출 #1142276

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1142276		SmuggingSpun	Crossing (JOI21_crossing)	C++20	3 / 100	31 ms	1152 KiB

Main

#include<bits/stdc++.h>
#define taskname "A"
using namespace std;
int n;
string sa, sb, sc;
namespace sub1{
	void solve(){
		int q;
		string t;
		cin >> q >> t;
		cout << (t == sa ? "Yes\n" : "No\n");
		for(int _ = 0; _ < q; _++){
			int l, r;
			char c;
			cin >> l >> r >> c;
			for(int i = l - 1; i < r; i++){
				t[i] = c;
			}
			cout << (t == sa ? "Yes\n" : "No\n");
		}
	}
}
namespace sub2{
	void solve(){
		
	}
}
namespace sub3{
	void solve(){
		
	}
}
namespace sub4{
	void solve(){
		
	}
}
int main(){
	ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
	if(fopen(taskname".inp", "r")){
		freopen(taskname".inp", "r", stdin);
	}
	cin >> n >> sa >> sb >> sc;
	if(n <= 100 && sa == sb && sb == sc){
		sub1::solve();
	}
	else if(sa == sb && sa == sc){
		sub2::solve();
	}
	else if(n <= 100){
		sub3::solve();
	}
	else{
		sub4::solve();
	}
}

컴파일 시 표준 에러 (stderr) 메시지

Main.cpp: In function 'int main()':
Main.cpp:41:24: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   41 |                 freopen(taskname".inp", "r", stdin);
      |                 ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 3 / 3
• Subtask 2: 0 / 23
• Subtask 3: 0 / 23
• Subtask 4: 0 / 51