Submission #1264199

#	Time	Username	Problem	Language	Result	Execution time	Memory
1264199		vtnoo	Roller Coaster Railroad (IOI16_railroad)	C++20	34 / 100	40 ms	11592 KiB

railroad

#include <bits/stdc++.h>

using namespace std;

const int MAXN=16;
const long long INF=1e18;
long long dp[1<<MAXN][MAXN];

long long plan_roller_coaster(std::vector<int> s, std::vector<int> t){
    int n=s.size();
    for(int i=0;i<(1<<MAXN);i++){
        for(int j=0;j<MAXN;j++)dp[i][j]=INF;
    }
    for(int i=0;i<n;i++){
        dp[1<<i][i]=0;
    }
    for(int S=1;S<(1<<n);S++){
        for(int i=0;i<n;i++){
            if(S&(1<<i)){
                for(int j=0;j<n;j++){
                    if(i==j)continue;
                    int prevS=(S^(1<<i));
                    if(dp[prevS][j]==INF)continue;
                    if(S&(1<<j)){
                        dp[S][i]=min(dp[S][i], dp[prevS][j]+max(0LL,(long long)t[j]-(long long)s[i]));
                    }
                }
            }
        }
    }
    //cout<<dp[(1<<n)-1].second<<endl;
    long long ret=INF;
    for(int i=0;i<n;i++)ret=min(ret,dp[(1<<n)-1][i]);
    return ret;
}

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