Submission #934837

#	Time	Username	Problem	Language	Result	Execution time	Memory
934837		irmuun	Toll (BOI17_toll)	C++17	100 / 100	1975 ms	9668 KiB

toll

#include<bits/stdc++.h>
 
using namespace std;
 
#define ll long long
#define pb push_back
#define ff first
#define ss second
#define all(s) s.begin(),s.end()
#define rall(s) s.rbegin(),s.rend()
 
int main(){
    ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
    ll k,n,m,O;
    cin>>k>>n>>m>>O;
    vector<pair<ll,ll>>adj[n];
    for(ll i=1;i<=m;i++){
        ll a,b,t;
        cin>>a>>b>>t;
        adj[a].pb({b,t});
    }
    ll dp[n];
    for(ll i=1;i<=O;i++){
        ll a,b;
        cin>>a>>b;
        fill(dp,dp+b+1,1e18);
        dp[a]=0;
        for(ll j=a;j<b;j++){
            for(auto [y,t]:adj[j]){
                dp[y]=min(dp[y],dp[j]+t);
            }
        }
        if(dp[b]==1e18){
            cout<<-1<<"\n";
        }
        else{
            cout<<dp[b]<<"\n";
        }
    }
}

• Subtask 1: 7 / 7
• Subtask 2: 10 / 10
• Subtask 3: 8 / 8
• Subtask 4: 31 / 31
• Subtask 5: 44 / 44