제출 #787068

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
787068		GusterGoose27	팀들 (IOI15_teams)	C++17	34 / 100	4066 ms	11884 KiB

teams

#include "teams.h"

#include <bits/stdc++.h>

using namespace std;

typedef pair<int, int> pii;

const int MAXN = 1e5+5;
pii students[MAXN];
int n;

void init(int N, int A[], int B[]) {
	n = N;
	for (int i = 0; i < n; i++) {
		students[i] = pii(A[i]-1, B[i]-1);
	}
	sort(students, students+n);
}

int can(int m, int k[]) {
	sort(k, k+m);
	int j = 0;
	priority_queue<int, vector<int>, greater<int>> active; 
	for (int i = 0; i < m; i++) {
		k[i]--;
		while (j < n && students[j].first <= k[i]) {
			active.push(students[j++].second);
		}
		while (!active.empty() && active.top() < k[i]) active.pop();
		for (int j = 0; j <= k[i]; j++) {
			if (active.empty()) return 0;
			active.pop();
		}
	}
	return 1;
}

컴파일 시 표준 에러 (stderr) 메시지

teams.cpp: In function 'int can(int, int*)':
teams.cpp:31:12: warning: declaration of 'j' shadows a previous local [-Wshadow]
   31 |   for (int j = 0; j <= k[i]; j++) {
      |            ^
teams.cpp:23:6: note: shadowed declaration is here
   23 |  int j = 0;
      |      ^

• Subtask 1: 21 / 21
• Subtask 2: 13 / 13
• Subtask 3: 0 / 43
• Subtask 4: 0 / 23