Submission #758878

#	Time	Username	Problem	Language	Result	Execution time	Memory
758878		Dan4Life	Roller Coaster Railroad (IOI16_railroad)	C++17	34 / 100	38 ms	10696 KiB

railroad

#include <bits/stdc++.h>
#include "railroad.h"
using namespace std;
using ll = long long;
const ll LINF = (ll)2e18;
ll dp[1<<16][16];

ll plan_roller_coaster(vector<int> s, vector<int> t) {
    int n = (int)s.size();
    for(int i = 0; i < (1<<n); i++) 
        for(int j = 0; j < n; j++) dp[i][j]=LINF;
    for(int i = 0; i < n; i++) dp[1<<i][i]=0;
    for(int mask = 1; mask < (1<<n); mask++){
        for(int i = 0; i < n; i++) 
            if((mask>>i)&1)
                for(int j = 0; j < n; j++)
                    if((mask>>j)&1 and j!=i)
                        dp[mask][i] = min(dp[mask][i], 
                            dp[mask^(1<<i)][j]+(ll)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