Submission #425826

#	Time	Username	Problem	Language	Result	Execution time	Memory
425826		temurbek_khujaev	Roller Coaster Railroad (IOI16_railroad)	C++17	34 / 100	58 ms	10572 KiB

railroad

#include "railroad.h"
#include <bits/stdc++.h>

const int N = 16;
long long INF = 1e16;
long long dp[1 << N][N];
using namespace std;

long long plan_roller_coaster(std::vector<int> s, std::vector<int> t) {
    int n = (int) s.size();

    for (int mask = 1; mask < (1 << n); mask++) {
        for (int i = 0; i < n; i++) {
            dp[mask][i] = INF;
            if ((mask & (1 << i)) == 0) continue;
            int p_mask = (mask ^ (1 << i));
            if (p_mask == 0) dp[mask][i] = 0;
            for (int j = 0; j < n; j++) {
                if (p_mask & (1 << j)) {
                    dp[mask][i] = min(dp[mask][i], dp[p_mask][j] + max(0, t[j] - s[i]));
                }
            }
        }
    }
    return *min_element(dp[(1 << n) - 1], dp[(1 << n) - 1] + n);
}

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