oj.uz

Submission #1086402

# Submission time Handle Problem Language Result Execution time Memory
1086402 2024-09-10T13:29:26 Z Icelast Worst Reporter 4 (JOI21_worst_reporter4) C++17
79 / 100
 409 ms 190544 KB 
#include <iostream>
#include <bits/stdc++.h>
#define ll long long
using namespace std;
const ll maxn = 2*1e5+5, INF = 4e18+9;
void solve(){
    int n;
    cin >> n;
    vector<vector<int>> adj(n+1);
    vector<ll> h(n+1), c(n+1);
    int root = 1;
    ll sumc = 0;
    for(int i = 1; i <= n; i++){
        int v;
        cin >> v >> h[i] >> c[i];
        sumc += c[i];
        adj[i].push_back(v);
        adj[v].push_back(i);
    }
    auto add = [&](map<ll, ll> &u, map<ll, ll> &v){
        if(u.size() < v.size()) swap(u, v);
        for(auto it : v){
            ll h = it.first, c = it.second;
            u[h] += c;
        }
    };
    auto fix = [&](int node, map<ll, ll> &u, ll h, ll d){
        u[h] -= d;
        u[h+1] += d;
        u[0] += d;
        if(u[h] >= 0 || node == root) return;
        d = -u[h];
        u[h] = 0;
        auto it = u.lower_bound(h);
        while(it != u.begin()){
            it = prev(it);
            if(it->second <= d){
                d -= it->second;
                it = u.erase(it);
            }else{
                it->second -= d;
                break;
            }
        }
    };
    vector<map<ll, ll>> dp(n+1);
    auto dfs = [&](auto dfs, int u, int p) -> void{
        for(int v : adj[u]){
            if(v == p) continue;
            dfs(dfs, v, u);
            add(dp[u], dp[v]);
        }
        fix(u, dp[u], h[u], c[u]);
    };
    dfs(dfs, 1, 1);
    ll ans = INF, res = 0;
    for(auto it : dp[1]){
        res += it.second;
        ans = min(ans, res);
    }
    cout << ans;
}
int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    solve();
}

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 7 ms 3328 KB Output is correct
6 Correct 5 ms 2140 KB Output is correct
7 Correct 3 ms 1816 KB Output is correct
8 Correct 7 ms 3164 KB Output is correct
9 Correct 5 ms 2140 KB Output is correct
10 Correct 4 ms 1628 KB Output is correct
11 Correct 2 ms 1372 KB Output is correct
12 Correct 4 ms 2140 KB Output is correct
13 Correct 3 ms 2140 KB Output is correct
14 Correct 4 ms 1628 KB Output is correct
15 Correct 3 ms 1628 KB Output is correct
16 Correct 8 ms 3856 KB Output is correct
17 Correct 5 ms 2652 KB Output is correct
18 Correct 2 ms 1372 KB Output is correct
19 Correct 5 ms 2140 KB Output is correct
20 Correct 3 ms 1880 KB Output is correct
21 Correct 3 ms 1880 KB Output is correct
22 Correct 5 ms 2396 KB Output is correct
23 Correct 3 ms 1628 KB Output is correct
24 Correct 5 ms 2140 KB Output is correct
25 Correct 3 ms 1884 KB Output is correct
26 Correct 3 ms 2136 KB Output is correct
27 Correct 5 ms 2392 KB Output is correct
28 Correct 4 ms 2396 KB Output is correct
29 Correct 4 ms 2396 KB Output is correct
30 Correct 4 ms 2396 KB Output is correct
31 Correct 4 ms 2396 KB Output is correct

Subtask #2
65.0 / 65.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 7 ms 3328 KB Output is correct
6 Correct 5 ms 2140 KB Output is correct
7 Correct 3 ms 1816 KB Output is correct
8 Correct 7 ms 3164 KB Output is correct
9 Correct 5 ms 2140 KB Output is correct
10 Correct 4 ms 1628 KB Output is correct
11 Correct 2 ms 1372 KB Output is correct
12 Correct 4 ms 2140 KB Output is correct
13 Correct 3 ms 2140 KB Output is correct
14 Correct 4 ms 1628 KB Output is correct
15 Correct 3 ms 1628 KB Output is correct
16 Correct 8 ms 3856 KB Output is correct
17 Correct 5 ms 2652 KB Output is correct
18 Correct 2 ms 1372 KB Output is correct
19 Correct 5 ms 2140 KB Output is correct
20 Correct 3 ms 1880 KB Output is correct
21 Correct 3 ms 1880 KB Output is correct
22 Correct 5 ms 2396 KB Output is correct
23 Correct 3 ms 1628 KB Output is correct
24 Correct 5 ms 2140 KB Output is correct
25 Correct 3 ms 1884 KB Output is correct
26 Correct 3 ms 2136 KB Output is correct
27 Correct 5 ms 2392 KB Output is correct
28 Correct 4 ms 2396 KB Output is correct
29 Correct 4 ms 2396 KB Output is correct
30 Correct 4 ms 2396 KB Output is correct
31 Correct 4 ms 2396 KB Output is correct
32 Correct 7 ms 3164 KB Output is correct
33 Correct 397 ms 139984 KB Output is correct
34 Correct 282 ms 90304 KB Output is correct
35 Correct 380 ms 133972 KB Output is correct
36 Correct 261 ms 90240 KB Output is correct
37 Correct 149 ms 52308 KB Output is correct
38 Correct 133 ms 41476 KB Output is correct
39 Correct 164 ms 69712 KB Output is correct
40 Correct 146 ms 69616 KB Output is correct
41 Correct 97 ms 69740 KB Output is correct
42 Correct 146 ms 49744 KB Output is correct
43 Correct 137 ms 49532 KB Output is correct
44 Correct 409 ms 190544 KB Output is correct
45 Correct 287 ms 119116 KB Output is correct
46 Correct 78 ms 41300 KB Output is correct
47 Correct 269 ms 75736 KB Output is correct
48 Correct 130 ms 61892 KB Output is correct
49 Correct 85 ms 61716 KB Output is correct
50 Correct 228 ms 79048 KB Output is correct
51 Correct 95 ms 54028 KB Output is correct
52 Correct 268 ms 76492 KB Output is correct
53 Correct 127 ms 62408 KB Output is correct
54 Correct 100 ms 70128 KB Output is correct
55 Correct 203 ms 79444 KB Output is correct
56 Correct 181 ms 84368 KB Output is correct
57 Correct 191 ms 87544 KB Output is correct
58 Correct 228 ms 86096 KB Output is correct
59 Correct 227 ms 86100 KB Output is correct

Subtask #3
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 7 ms 3328 KB Output is correct
6 Correct 5 ms 2140 KB Output is correct
7 Correct 3 ms 1816 KB Output is correct
8 Correct 7 ms 3164 KB Output is correct
9 Correct 5 ms 2140 KB Output is correct
10 Correct 4 ms 1628 KB Output is correct
11 Correct 2 ms 1372 KB Output is correct
12 Correct 4 ms 2140 KB Output is correct
13 Correct 3 ms 2140 KB Output is correct
14 Correct 4 ms 1628 KB Output is correct
15 Correct 3 ms 1628 KB Output is correct
16 Correct 8 ms 3856 KB Output is correct
17 Correct 5 ms 2652 KB Output is correct
18 Correct 2 ms 1372 KB Output is correct
19 Correct 5 ms 2140 KB Output is correct
20 Correct 3 ms 1880 KB Output is correct
21 Correct 3 ms 1880 KB Output is correct
22 Correct 5 ms 2396 KB Output is correct
23 Correct 3 ms 1628 KB Output is correct
24 Correct 5 ms 2140 KB Output is correct
25 Correct 3 ms 1884 KB Output is correct
26 Correct 3 ms 2136 KB Output is correct
27 Correct 5 ms 2392 KB Output is correct
28 Correct 4 ms 2396 KB Output is correct
29 Correct 4 ms 2396 KB Output is correct
30 Correct 4 ms 2396 KB Output is correct
31 Correct 4 ms 2396 KB Output is correct
32 Correct 7 ms 3164 KB Output is correct
33 Correct 397 ms 139984 KB Output is correct
34 Correct 282 ms 90304 KB Output is correct
35 Correct 380 ms 133972 KB Output is correct
36 Correct 261 ms 90240 KB Output is correct
37 Correct 149 ms 52308 KB Output is correct
38 Correct 133 ms 41476 KB Output is correct
39 Correct 164 ms 69712 KB Output is correct
40 Correct 146 ms 69616 KB Output is correct
41 Correct 97 ms 69740 KB Output is correct
42 Correct 146 ms 49744 KB Output is correct
43 Correct 137 ms 49532 KB Output is correct
44 Correct 409 ms 190544 KB Output is correct
45 Correct 287 ms 119116 KB Output is correct
46 Correct 78 ms 41300 KB Output is correct
47 Correct 269 ms 75736 KB Output is correct
48 Correct 130 ms 61892 KB Output is correct
49 Correct 85 ms 61716 KB Output is correct
50 Correct 228 ms 79048 KB Output is correct
51 Correct 95 ms 54028 KB Output is correct
52 Correct 268 ms 76492 KB Output is correct
53 Correct 127 ms 62408 KB Output is correct
54 Correct 100 ms 70128 KB Output is correct
55 Correct 203 ms 79444 KB Output is correct
56 Correct 181 ms 84368 KB Output is correct
57 Correct 191 ms 87544 KB Output is correct
58 Correct 228 ms 86096 KB Output is correct
59 Correct 227 ms 86100 KB Output is correct
60 Incorrect 1 ms 348 KB Output isn't correct
61 Halted 0 ms 0 KB -