제출 #369813

#제출 시각아이디문제언어결과실행 시간메모리
369813KoDRoller Coaster Railroad (IOI16_railroad)C++17
0 / 100
471 ms22860 KiB
#include <bits/stdc++.h>
#include "railroad.h"

template <class T>
using Vec = std::vector<T>;
using ll = long long;

constexpr int MAX = 1000000000;

ll plan_roller_coaster(Vec<int> s, Vec<int> t) {
    s.push_back(MAX);
    t.push_back(1);
    std::map<int, int> count;
    for (const auto x: s) {
        count[x] -= 1;
    }
    for (const auto x: t) {
        count[x] += 1;
    }
    int cur = 0;
    for (const auto [x, c]: count) {
        cur += c;
        if (cur < 0) {
            return 1;
        }
    }
    return cur;
}
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