Submission #1133110

#	Time	Username	Problem	Language	Result	Execution time	Memory
1133110		pokmui9909	Treatment Project (JOI20_treatment)	C++17	35 / 100	915 ms	589824 KiB

treatment

#include <bits/stdc++.h>
using namespace std;
using ll = long long;

#define x first
#define y second

ll N, M, T[100005], L[100005], R[100005], C[100005], D[100005];
vector<ll> G[100005];

int main(){
    cin.tie(0) -> sync_with_stdio(0);

    cin >> N >> M;
    fill(D, D + 100005, 1e18);
    priority_queue<pair<ll, ll>> PQ;
    for(ll i = 1; i <= M; i++){
        cin >> T[i] >> L[i] >> R[i] >> C[i];
        if(L[i] == 1){
            D[i] = C[i]; PQ.push({-C[i], i});
        }
    }
    for(ll i = 1; i <= M; i++){
        for(ll j = 1; j <= M; j++){
            if(R[i] - abs(T[i] - T[j]) >= L[j] - 1){
                G[i].push_back(j);
            }
        }
    }
    ll Ans = 1e18;
    while(!PQ.empty()){
        ll c = -PQ.top().x, u = PQ.top().y; PQ.pop();
        if(D[u] < c) continue;
        if(R[u] == N){
            Ans = min(Ans, c);
        }
        for(auto v : G[u]){
            if(D[v] <= D[u] + C[v]) continue;
            D[v] = D[u] + C[v];
            PQ.push({-D[v], v});
        }
    }
    cout << (Ans == 1e18 ? -1 : Ans);
}

• Subtask 1: 0 / 4
• Subtask 2: 5 / 5
• Subtask 3: 30 / 30
• Subtask 4: 0 / 61