Submission #825286

#	Time	Username	Problem	Language	Result	Execution time	Memory
825286		ma_moutahid	Race (IOI11_race)	C++17	0 / 100	1 ms	340 KiB

race

#include <bits/stdc++.h>
#include "race.h"
using ll =long long;
//#define int ll
ll LINF=1000000000000000000;
int INF=1e9;
#define pi pair<int,int>
#define pl pair<ll,ll>
#define endl '\n'
#define vi vector<int>
#define vii vector<vector<int>>
#define vl vector<ll>
#define vll vector<vector<ll>>
//#define int ll
using namespace std;
vector<vector<pi>>g;
int k;
int minimum=INF;

vi vinf={INF,-1};





int best_path(int N, int K, int H[][2], int L[])
{
    g.resize(N);
    k=K;
    for(int i=0;i<N-1;i++){
        g[H[i][0]].push_back(make_pair(H[i][1],L[i]));
        g[H[i][1]].push_back(make_pair(H[i][0],L[i]));
    }
    vii dp(N,vi(k+1,INF));
    for(int i=0;i<k+1;i++){
        for(int j=0;j<N;j++){
            for(pi child:g[j]){
                if(child.second>i)continue;
                dp[j][i]=min(dp[j][i],dp[child.first][i-child.second]+1);
            }
        }
    }
    for(int i=0;i<N;i++){
        minimum=*std::min_element(dp[k].begin(), dp[k].end());
    }

    if(minimum==INF)return -1;
    return minimum;
}

• Subtask 1: 0 / 9
• Subtask 2: 0 / 12
• Subtask 3: 0 / 22
• Subtask 4: 0 / 57