oj.uz

답안 #1046909

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1046909 2024-08-07T06:10:18 Z 변재우(#11026) 치료 계획 (JOI20_treatment) C++17
4 / 100
 47 ms 9932 KB 
// #include <bits/stdc++.h>
// #define int long long
// using namespace std;

// const int Nmax=5010, INF=1e18;
// int N, M, T[Nmax], L[Nmax], R[Nmax], C[Nmax], D[Nmax];
// vector<int> adj[Nmax];
// priority_queue<pair<int, int>> PQ;

// signed main() {
//     ios_base::sync_with_stdio(0); cin.tie(0);
//     cin>>N>>M;
//     for(int i=1; i<=M; i++) {
//         cin>>T[i]>>L[i]>>R[i]>>C[i];
//         if(L[i]==1) adj[0].push_back(i);
//         if(R[i]==N) adj[i].push_back(M+1);
//     }
//     for(int i=1; i<=M; i++) for(int j=i+1; j<=M; j++) {
//         int l1=L[i]+max(0ll, T[j]-T[i]), r1=R[i]-max(0ll, T[j]-T[i]);
//         int l2=L[j]+max(0ll, T[i]-T[j]), r2=R[j]-max(0ll, T[i]-T[j]);
//         if(l1>r1 || l2>r2) continue;
//         if(!(l1>r2+1 || l2>r1+1)) adj[i].push_back(j), adj[j].push_back(i);
//     }
//     fill(D+1, D+M+2, INF);
//     PQ.push({0, 0});
//     while(!PQ.empty()) {
//         int curr=PQ.top().second, dist=-PQ.top().first; PQ.pop();
//         if(dist!=D[curr]) continue;
//         for(int next:adj[curr]) if(D[next]>D[curr]+C[next]) D[next]=D[curr]+C[next], PQ.push({-D[next], next});
//     }
//     if(D[M+1]==INF) cout<<-1;
//     else cout<<D[M+1];
//     return 0;
// }

#include <bits/stdc++.h>
#define int long long
using namespace std;

const int Nmax=100010, S=(1<<17), INF=1e18;
int N, M, ans=INF;
struct Data {int t, l, r, c;}A[Nmax];
vector<int> V;

class Seg {
public:
    Seg() {fill(Tree+1, Tree+2*S, INF);}
    void Update(int k, int v) {
        k+=S-1;
        Tree[k]=min(Tree[k], v);
        for(k>>=1; k; k>>=1) Tree[k]=min(Tree[k<<1], Tree[k<<1|1]);
    }
    int Query(int l, int r) {
        int ret=INF;
        for(l+=S-1, r+=S-1; l<r; l>>=1, r>>=1) {
            if(l&1) ret=min(ret, Tree[l++]);
            if(!(r&1)) ret=min(ret, Tree[r--]);
        }
        if(l==r) ret=min(ret, Tree[l]);
        return ret;
    }
private:
    int Tree[2*S];
}T;

signed main() {
    ios_base::sync_with_stdio(0); cin.tie(0);
    cin>>N>>M;
    for(int i=1; i<=M; i++) cin>>A[i].t>>A[i].l>>A[i].r>>A[i].c, V.push_back(A[i].r);
    sort(A+1, A+M+1, [](Data a, Data b) {return a.r<b.r;});
    V.push_back(0), V.push_back(M);
    sort(V.begin(), V.end()), V.erase(unique(V.begin(), V.end()), V.end());
    T.Update(1, 0);
    for(int i=1; i<=M; i++) {
        int tmp=T.Query(lower_bound(V.begin(), V.end(), A[i].l-1)-V.begin()+1, V.size())+A[i].c;
        T.Update(lower_bound(V.begin(), V.end(), A[i].r)-V.begin()+1, tmp);
        if(A[i].r==N) ans=min(ans, tmp);
    }
    if(ans==INF) cout<<-1;
    else cout<<ans;
    return 0;
}

Subtask #1
4.0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 43 ms 9932 KB Output is correct
2 Correct 47 ms 9576 KB Output is correct
3 Correct 36 ms 8548 KB Output is correct
4 Correct 38 ms 8664 KB Output is correct
5 Correct 30 ms 9412 KB Output is correct
6 Correct 31 ms 9432 KB Output is correct
7 Correct 33 ms 9424 KB Output is correct
8 Correct 30 ms 9436 KB Output is correct
9 Correct 30 ms 9568 KB Output is correct
10 Correct 32 ms 9432 KB Output is correct
11 Correct 45 ms 9688 KB Output is correct
12 Correct 45 ms 9504 KB Output is correct
13 Correct 44 ms 9432 KB Output is correct
14 Correct 45 ms 9432 KB Output is correct
15 Correct 44 ms 9428 KB Output is correct
16 Correct 44 ms 9432 KB Output is correct
17 Correct 40 ms 8632 KB Output is correct
18 Correct 43 ms 8920 KB Output is correct

Subtask #2
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 2652 KB Output is correct
2 Incorrect 1 ms 2652 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #3
0 / 30.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 2652 KB Output is correct
2 Incorrect 1 ms 2652 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #4
0 / 61.0

# 결과 실행 시간 메모리 Grader output
1 Correct 43 ms 9932 KB Output is correct
2 Correct 47 ms 9576 KB Output is correct
3 Correct 36 ms 8548 KB Output is correct
4 Correct 38 ms 8664 KB Output is correct
5 Correct 30 ms 9412 KB Output is correct
6 Correct 31 ms 9432 KB Output is correct
7 Correct 33 ms 9424 KB Output is correct
8 Correct 30 ms 9436 KB Output is correct
9 Correct 30 ms 9568 KB Output is correct
10 Correct 32 ms 9432 KB Output is correct
11 Correct 45 ms 9688 KB Output is correct
12 Correct 45 ms 9504 KB Output is correct
13 Correct 44 ms 9432 KB Output is correct
14 Correct 45 ms 9432 KB Output is correct
15 Correct 44 ms 9428 KB Output is correct
16 Correct 44 ms 9432 KB Output is correct
17 Correct 40 ms 8632 KB Output is correct
18 Correct 43 ms 8920 KB Output is correct
19 Correct 1 ms 2652 KB Output is correct
20 Incorrect 1 ms 2652 KB Output isn't correct
21 Halted 0 ms 0 KB -