Submission #1208548

#	Time	Username	Problem	Language	Result	Execution time	Memory
1208548		omsincoconut	Roller Coaster Railroad (IOI16_railroad)	C++17	34 / 100	304 ms	589824 KiB

railroad

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

using namespace std;
typedef long long ll;

const ll INF = 1e18;

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

    int maxmask = 1<<n;
    ll dp[maxmask][n];

    for (int mask = 0; mask < maxmask; mask++) {
        for (int i = 0; i < n; i++) {
            dp[mask][i] = INF;
        }
    }

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

    ll ans = INF;
    for (int i = 0; i < n; i++) ans = min(ans, dp[maxmask-1][i]);

    return ans;
}

Compilation message (stderr)

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