Submission #276468

#	Time	Username	Problem	Language	Result	Execution time	Memory
276468		arayi	Roller Coaster Railroad (IOI16_railroad)	C++17	34 / 100	80 ms	10616 KiB

railroad

#include "railroad.h"
#include <bits/stdc++.h>
#define lli long long int
using namespace std;
const int N = 1e5 + 30;
int n;
lli dp[20][N], mn = 1e11;
long long plan_roller_coaster(vector<int> s, vector<int> t)
{
    n = s.size();
    for (int x = 0; x < (1 << n); x++)
    {
        for (int i = 0; i < n; i++)
        {
            if((1 << i) & x)
            {
                if(x - (1 << i) == 0) continue;
                dp[i][x] = 1e11;
                for (int j = 0; j < n; j++)
                {
                    if(i == j) continue;
                    if((1 << j) & x) dp[i][x] = min(max(0, t[i] - s[j]) + dp[j][x - (1 << i)], dp[i][x]);
                }
            }
        }
    }
    for (int i = 0; i < n; i++)
    {
        mn = min(dp[i][(1 << n) - 1], mn);
    }
    return mn;
}

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