Submission #134692

#	Time	Username	Problem	Language	Result	Execution time	Memory
134692		ckodser	Roller Coaster Railroad (IOI16_railroad)	C++14	34 / 100	92 ms	10788 KiB

railroad

#include "railroad.h"

#include<bits/stdc++.h>
#define ll long long
#define pb push_back
#define mp make_pair
#define pii pair<ll,ll>
#define F first
#define S second
#define ld long double

using namespace :: std;

const ll maxn=17;
const ll inf=1e17+900;

ll ger[maxn][maxn];
ll dp[1<<maxn][maxn];
long long plan_roller_coaster(vector<int> s,vector<int> t) {
    int n = (int) s.size();
    for(ll i=0;i<n;i++){
	for(ll j=0;j<n;j++){
	    ger[i][j]=max(0,t[i]-s[j]);
	}
    }
    for(ll i=1;i<(1<<n);i++){
	for(ll j=0;j<n;j++){
	    if(i!=(1<<j)){
		if((i>>j)&1){
		    dp[i][j]=inf;
		    for(ll k=0;k<n;k++){
			if(((i>>k)&1) && k!=j){
			    dp[i][j]=min(dp[i][j],dp[i^(1<<j)][k]+ger[j][k]);
			}
		    }	
		}
	    }
	}
    }
    ll ans=inf;
    for(ll i=0;i<n;i++){
	ans=min(ans,dp[(1<<n)-1][i]);
    }
    return ans;
}

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