제출 #1323511

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1323511		k1r1t0	Roller Coaster Railroad (IOI16_railroad)	C++20	0 / 100	79 ms	6864 KiB

railroad

#include <bits/stdc++.h>

using namespace std;
using ll = long long;
using vi = vector<int>;

const int N = 210000;

int n;
vector<array<int, 2>> a;

ll plan_roller_coaster(vi s, vi t) {
    n = s.size();
    for (int i = 0; i < n; i++)
        a.push_back({s[i], t[i]});
    vi val;
    sort(begin(a), end(a));
    for (int i = 0; i < n; i++) {
        int pos = lower_bound(begin(a), end(a), array<int, 2>{a[i][1], 0}) - begin(a);
        val.push_back(n - pos - (a[i][1] <= a[i][0]));
    }
    sort(begin(val), end(val));
    for (int i = 0; i < n; i++)
        if (val[i] < i)
            return 1;
    return 0;
}





























#ifdef LOCAL

int main() {
    int n;
    assert(1 == scanf("%d", &n));
    std::vector<int> s(n), t(n);
    for (int i = 0; i < n; ++i)
        assert(2 == scanf("%d%d", &s[i], &t[i]));
    long long ans = plan_roller_coaster(s, t);
    printf("%lld\n", ans);
    return 0;
}

#endif

컴파일 시 표준 에러 (stderr) 메시지

railroad.h:1:9: warning: #pragma once in main file
    1 | #pragma once
      |         ^~~~
railroad_c.h:1:9: warning: #pragma once in main file
    1 | #pragma once
      |         ^~~~

• Subtask 1: 0 / 11
• Subtask 2: 0 / 23
• Subtask 3: 0 / 30
• Subtask 4: 0 / 36