Submission #1232134

#	Time	Username	Problem	Language	Result	Execution time	Memory
1232134		cpdreamer	Roller Coaster Railroad (IOI16_railroad)	C++20	34 / 100	33 ms	11720 KiB

railroad

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
using namespace __gnu_pbds;
using namespace std;
const long long INF = 1e17;
typedef long long ll;
const ll MOD = 1000002022;
#define F first
#define P pair
#define S second
#define pb push_back
#define V vector
#define all(v) v.begin(), v.end()

ll dp[(int)(1<<16)][16];
long long plan_roller_coaster(std::vector<int> s, std::vector<int> t) {
    int n=(int)s.size();
    for (int i=0;i<(1<<16);i++) {
        for (int j=0;j<16;j++) {
            dp[i][j]=INF;
        }
    }
    for (int i=0;i<n;i++) {
        dp[1<<i][i]=0;
    }
    for (int mask=1;mask<(1<<n);mask++){
        for (int j=0;j<n;j++) {
            if (((1<<j)&mask)!=0) {
                mask^=(1<<j);
                for (int g=0;g<n;g++) {
                    if (((1<<g)&mask)!=0) {
                        dp[mask^(1<<j)][j]=min(dp[mask^(1<<j)][j],dp[mask][g]+max((ll)t[g]-(ll)s[j],0LL));
                    }
                }
                mask^=(1<<j);
            }
        }
    }
    ll ans=INF;
    for (int i=0;i<n;i++) {
        ans=min(ans,dp[(1<<n)-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