oj.uz

Submission #946788

# Submission time Handle Problem Language Result Execution time Memory
946788 2024-03-15T04:55:30 Z vjudge1 Treatment Project (JOI20_treatment) C++17
4 / 100
 85 ms 11600 KB 
#include <bits/stdc++.h>

using namespace std;

#define all(x) x.begin(), x.end()
#define ar array
#define pb push_back
#define ln '\n'
#define int long long

using i64 = long long;

template <class F, class _S>
bool chmin(F &u, const _S &v){
    bool flag = false;
    if ( u > v ){
        u = v; flag |= true;
    }
    return flag;
}

template <class F, class _S>
bool chmax(F &u, const _S &v){
    bool flag = false;
    if ( u < v ){
        u = v; flag |= true;
    }
    return flag;
}

const int N = 1e5 + 1;

const int inf = 1e15;

int m;

struct SegTree{
    int T[N * 4];
    SegTree(){
        for ( int i = 0; i < N * 4; i++ ){
            T[i] = inf;
        }
    }
    void upd(int v, int l, int r, int pos, int vl){
        if ( l == r ){
            T[v] = vl;
            return;
        }
        int md = (l + r) >> 1;
        if ( pos <= md ){
            upd(v * 2, l, md, pos, vl);
        } else{
            upd(v * 2 + 1, md + 1, r, pos, vl);
        }
        T[v] = min(T[v * 2], T[v * 2 + 1]);
    }
    void upd(int pos, int vl){
        upd(1, 0, m - 1, pos, vl);
    }
    int get(int v, int l, int r, int tl, int tr){
        if ( l > tr or r < tl ){
            return inf;
        }
        if ( tl <= l && tr >= r ){
            return T[v];
        }
        int md = (l + r) >> 1;
        return min(get(v * 2, l, md, tl, tr), get(v * 2 + 1, md + 1, r, tl, tr));
    }
    int get(int l, int r){
        return get(1, 0, m - 1, l, r);
    }
} seg;

signed main(){
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);

    int n; cin >> n >> m;
    vector <int> T(m), L(m), R(m), C(m);
    for ( int i = 0; i < m; i++ ){
        cin >> T[i] >> L[i] >> R[i] >> C[i];
    }
    if ( *max_element(all(T)) == 1 ){
        vector <int> p(m);
        iota(all(p), 0);
        sort(all(p), [&](int &u, int &v){
             return R[u] < R[v];
        });
        vector <int> dp(m, inf);
        int opt = inf;
        for ( int i = 0; i < m; i++ ){
            int j = p[i];
            if ( L[j] == 1 ){
                dp[i] = C[j];
            } else{
                int l = 0, r = i;
                while ( l < r ){
                    int md = (l + r) >> 1;
                    if ( R[p[md]] + 1 >= L[j] ){
                        r = md;
                    } else l = md + 1;
                }
                chmin(dp[i], seg.get(l, i) + C[j]);
            }
            seg.upd(i, dp[i]);
            if ( R[j] == n ){
                chmin(opt, dp[i]);
            }
        }
        cout << (opt == inf ? -1 : opt);
        return 0;
    }

    cout << '\n';
}

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 54 ms 8272 KB Output is correct
2 Correct 53 ms 11456 KB Output is correct
3 Correct 62 ms 10300 KB Output is correct
4 Correct 64 ms 10320 KB Output is correct
5 Correct 54 ms 11372 KB Output is correct
6 Correct 60 ms 11348 KB Output is correct
7 Correct 70 ms 11344 KB Output is correct
8 Correct 58 ms 11380 KB Output is correct
9 Correct 56 ms 11324 KB Output is correct
10 Correct 68 ms 11348 KB Output is correct
11 Correct 85 ms 11344 KB Output is correct
12 Correct 85 ms 11600 KB Output is correct
13 Correct 69 ms 11380 KB Output is correct
14 Correct 72 ms 11344 KB Output is correct
15 Correct 78 ms 11196 KB Output is correct
16 Correct 62 ms 11344 KB Output is correct
17 Correct 57 ms 10624 KB Output is correct
18 Correct 82 ms 10684 KB Output is correct

Subtask #2
0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 3420 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 30.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 3420 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 61.0

# Verdict Execution time Memory Grader output
1 Correct 54 ms 8272 KB Output is correct
2 Correct 53 ms 11456 KB Output is correct
3 Correct 62 ms 10300 KB Output is correct
4 Correct 64 ms 10320 KB Output is correct
5 Correct 54 ms 11372 KB Output is correct
6 Correct 60 ms 11348 KB Output is correct
7 Correct 70 ms 11344 KB Output is correct
8 Correct 58 ms 11380 KB Output is correct
9 Correct 56 ms 11324 KB Output is correct
10 Correct 68 ms 11348 KB Output is correct
11 Correct 85 ms 11344 KB Output is correct
12 Correct 85 ms 11600 KB Output is correct
13 Correct 69 ms 11380 KB Output is correct
14 Correct 72 ms 11344 KB Output is correct
15 Correct 78 ms 11196 KB Output is correct
16 Correct 62 ms 11344 KB Output is correct
17 Correct 57 ms 10624 KB Output is correct
18 Correct 82 ms 10684 KB Output is correct
19 Incorrect 1 ms 3420 KB Output isn't correct
20 Halted 0 ms 0 KB -