제출 #1167678

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1167678		Tyx2019	Circle Passing (EGOI24_circlepassing)	C++20	100 / 100	171 ms	12608 KiB

Main

#include <bits/stdc++.h>
#define int long long 
#define debug(x) if(0) cout << #x << " is " << x << endl;
using namespace std;
int N, M, Q, K;
int dist(int x, int y){
	return min((y-x+K)%K, (x-y+K)%K);
}
int calc(int x, int y, int z){
	return dist(x, z) + dist((z+N)%K, y) + 1;
}
main(){
	cin >> N >> M >> Q;
	K = 2 * N;
	int X[M];
	for(int i=0;i<M;i++) cin >> X[i];
	vector<int> guys;
	for(int i=0;i<M;i++){
		guys.push_back(X[i]);
		guys.push_back(X[i] + N);
	}
	sort(guys.begin(), guys.end());
	for(int i=0;i<Q;i++){
		int x, y;
		cin >> x >> y;
		int ans = dist(x, y);
		ans = min({ans, calc(x, y, guys[0]), calc(x, y, guys[2*M-1])});
		auto it = lower_bound(guys.begin(), guys.end(), x);
		if(it != guys.end()) ans = min(ans, calc(x, y, *it));
		if(it != guys.begin()){
			it--;
			ans = min(ans, calc(x, y, *it));
		}
		cout << ans << '\n';
	}
}
		

컴파일 시 표준 에러 (stderr) 메시지

Main.cpp:12:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   12 | main(){
      | ^~~~

• Subtask 1: 14 / 14
• Subtask 2: 20 / 20
• Subtask 3: 22 / 22
• Subtask 4: 17 / 17
• Subtask 5: 27 / 27