제출 #550416

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
550416		elazarkoren	Teams (IOI15_teams)	C++17	34 / 100	4089 ms	21192 KiB

teams

#include <bits/stdc++.h>
#define x first
#define y second
#define all(v) v.begin(), v.end()
#define chkmin(a, b) a = min(a, b)
#define chkmax(a, b) a = max(a, b)
using namespace std;
typedef long long ll;
typedef vector<int> vi;
typedef vector<vi> vvi;
typedef pair<int, int> pii;
typedef vector<pii> vii;

const int MAX_N = 5e5 + 5;

int a[MAX_N], b[MAX_N], ind[MAX_N];
int n;

void init(int N, int A[], int B[]) {
    n = N;
    for (int i = 0; i < n; i++) {
        a[i] = A[i];
        b[i] = B[i];
        ind[i] = i;
    }
    sort(ind, ind + n, [&] (int i, int j) {
        return (a[i] == a[j] ? b[i] < b[j] : a[i] < a[j]);
    });
}

int can(int m, int k[]) {
    priority_queue<int, vi, greater<int>> pq;
    sort(k, k + m);
    int last = 0;
    for (int i = 0; i < m; i++) {
        while (last < n && a[ind[last]] <= k[i]) {
            pq.push(b[ind[last++]]);
        }
        while (!pq.empty() && pq.top() < k[i]) pq.pop();
        if (pq.size() < k[i]) {
            return 0;
        }
        while (k[i]--) pq.pop();
    }
    return 1;
}
//4
//2 4
//1 2
//2 3
//2 3
//2
//2 1 3
//2 1 1

컴파일 시 표준 에러 (stderr) 메시지

teams.cpp: In function 'int can(int, int*)':
teams.cpp:40:23: warning: comparison of integer expressions of different signedness: 'std::priority_queue<int, std::vector<int>, std::greater<int> >::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   40 |         if (pq.size() < k[i]) {
      |             ~~~~~~~~~~^~~~~~

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