Submission #409658

#	Time	Username	Problem	Language	Result	Execution time	Memory
409658		DBPhoenix	Roller Coaster Railroad (IOI16_railroad)	C++17	0 / 100	449 ms	26120 KiB

railroad

#include <bits/stdc++.h>

using namespace std;

#include "railroad.h"

const int MAX = 2e5;

long long plan_roller_coaster(std::vector<int> s, std::vector<int> t) {
    int n = (int) s.size();
    map<int, int> interest;
    interest[1]--;

    for (int i = 0; i < n; i++) {
        interest[s[i]]++;
        interest[t[i]]--;
    }

    long long value = 0;
    long long balance = 0;
    for (pair<int, int> p : interest)
    {
        value += p.second;
        balance += max((long long)0, value);
    }

    return balance;
}

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