oj.uz

답안 #1094434

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1094434 2024-09-29T15:37:30 Z vladilius Worst Reporter 4 (JOI21_worst_reporter4) C++17
79 / 100
 413 ms 162968 KB 
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using pii = pair<int, int>;
#define pb push_back
#define ff first
#define ss second
#define arr3 array<int, 3>
 
int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    
    int n; cin>>n;
    vector<int> a(n + 1), h(n + 1), c(n + 1);
    for (int i = 1; i <= n; i++){
        cin>>a[i]>>h[i]>>c[i];
    }
    
    vector<pii> all;
    for (int i = 1; i <= n; i++) all.pb({h[i], i});
    sort(all.begin(), all.end());
    int i = 0, cc = 0;
    while (i < all.size()){
        int j = i;
        while (j < all.size() && all[i] == all[j]){
            j++;
        }
        cc++;
        while (i < j){
            h[all[i].ss] = cc;
            i++;
        }
    }
    
    vector<int> g1[n + 1];
    for (int i = 1; i <= n; i++){
        if (a[i] != i) g1[a[i]].pb(i);
    }
    vector<bool> used(n + 1), seen(n + 1);
    vector<int> dd(n + 1), d[n + 1], pp(n + 1);
    function<void(int)> dfs = [&](int v){
        seen[v] = used[v] = 1;
        for (int i: g1[v]){
            if (used[i]){
                if (seen[i]){
                    dd[i] = v;
                    for (int j = v; j != i; j = pp[j]){
                        dd[j] = v;
                    }
                }
                continue;
            }
            pp[i] = v;
            dfs(i);
        }
        seen[v] = 0;
    };
    
    for (int i = 1; i <= n; i++){
        if (!used[i]){
            dfs(i);
        }
    }
    
    vector<int> g[n + 1];
    for (int i = 1; i <= n; i++){
        if (!dd[i]) dd[i] = i;
        d[dd[i]].pb(i);
    }
    fill(used.begin(), used.end(), 0);
    for (int i = 1; i <= n; i++){
        int x = dd[a[i]], y = dd[i];
        if (x != y){
            g[x].pb(y);
            used[y] = 1;
        }
    }
    
    vector<ll> sum(cc + 1);
    map<int, ll> mp[n + 1];
    
    auto add = [&](int v, int l, int r, ll x){
        mp[v][l] += x;
        if (r < cc) mp[v][r + 1] -= x;
    };
    
    function<void(int)> solve = [&](int v){
        for (int i: g[v]) solve(i);
        
        for (int i: g[v]){
            if (mp[v].size() < mp[i].size()) swap(mp[v], mp[i]);
            for (auto [p, x]: mp[i]){
                mp[v][p] += x;
            }
        }
        
        ll S = 0;
        for (int i: d[v]) S += c[i];
        
        map<int, ll> t;
        for (int i: d[v]){
            t[h[i]] += c[i];
        }
    
        add(v, 1, cc, S);
        
        for (auto [i, S]: t){
            auto it = mp[v].upper_bound(i);
            if (it == mp[v].begin()) continue;
            it--;
            if (i < cc) mp[v][i + 1] += S;
            ll x = S; int r = -1;
            while ((*it).ss < x) {
                r = (*it).ff;
                x -= (*it).ss;
                if (it == mp[v].begin()) break;
                it--;
            }
            it -> ss -= x;
            if (r != -1){
                while (true){
                    it = mp[v].lower_bound(r);
                    if (it == mp[v].end() || (*it).ff > i) break;
                    mp[v].erase(it);
                }
            }
        }
    };
    ll out = 0;
    for (int i = 1; i <= n; i++){
        if (!used[i]){
            solve(i);
            out += (*mp[i].begin()).ss;
        }
    }
    cout<<out<<"\n";
}

Compilation message

worst_reporter2.cpp: In function 'int main()':
worst_reporter2.cpp:25:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   25 |     while (i < all.size()){
      |            ~~^~~~~~~~~~~~
worst_reporter2.cpp:27:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   27 |         while (j < all.size() && all[i] == all[j]){
      |                ~~^~~~~~~~~~~~

Subtask #1
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 460 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 6 ms 2652 KB Output is correct
6 Correct 6 ms 2652 KB Output is correct
7 Correct 5 ms 2684 KB Output is correct
8 Correct 6 ms 2652 KB Output is correct
9 Correct 6 ms 2688 KB Output is correct
10 Correct 6 ms 2640 KB Output is correct
11 Correct 6 ms 2944 KB Output is correct
12 Correct 4 ms 2908 KB Output is correct
13 Correct 4 ms 2908 KB Output is correct
14 Correct 4 ms 2140 KB Output is correct
15 Correct 5 ms 2136 KB Output is correct
16 Correct 6 ms 2908 KB Output is correct
17 Correct 6 ms 3164 KB Output is correct
18 Correct 6 ms 3676 KB Output is correct
19 Correct 5 ms 2652 KB Output is correct
20 Correct 5 ms 2652 KB Output is correct
21 Correct 4 ms 2652 KB Output is correct
22 Correct 4 ms 2396 KB Output is correct
23 Correct 4 ms 2396 KB Output is correct
24 Correct 4 ms 2556 KB Output is correct
25 Correct 4 ms 2652 KB Output is correct
26 Correct 4 ms 3160 KB Output is correct
27 Correct 5 ms 2652 KB Output is correct
28 Correct 4 ms 2652 KB Output is correct
29 Correct 4 ms 2916 KB Output is correct
30 Correct 4 ms 2648 KB Output is correct
31 Correct 4 ms 2812 KB Output is correct

Subtask #2
65.0 / 65.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 460 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 6 ms 2652 KB Output is correct
6 Correct 6 ms 2652 KB Output is correct
7 Correct 5 ms 2684 KB Output is correct
8 Correct 6 ms 2652 KB Output is correct
9 Correct 6 ms 2688 KB Output is correct
10 Correct 6 ms 2640 KB Output is correct
11 Correct 6 ms 2944 KB Output is correct
12 Correct 4 ms 2908 KB Output is correct
13 Correct 4 ms 2908 KB Output is correct
14 Correct 4 ms 2140 KB Output is correct
15 Correct 5 ms 2136 KB Output is correct
16 Correct 6 ms 2908 KB Output is correct
17 Correct 6 ms 3164 KB Output is correct
18 Correct 6 ms 3676 KB Output is correct
19 Correct 5 ms 2652 KB Output is correct
20 Correct 5 ms 2652 KB Output is correct
21 Correct 4 ms 2652 KB Output is correct
22 Correct 4 ms 2396 KB Output is correct
23 Correct 4 ms 2396 KB Output is correct
24 Correct 4 ms 2556 KB Output is correct
25 Correct 4 ms 2652 KB Output is correct
26 Correct 4 ms 3160 KB Output is correct
27 Correct 5 ms 2652 KB Output is correct
28 Correct 4 ms 2652 KB Output is correct
29 Correct 4 ms 2916 KB Output is correct
30 Correct 4 ms 2648 KB Output is correct
31 Correct 4 ms 2812 KB Output is correct
32 Correct 6 ms 2652 KB Output is correct
33 Correct 391 ms 109284 KB Output is correct
34 Correct 409 ms 109008 KB Output is correct
35 Correct 406 ms 106444 KB Output is correct
36 Correct 365 ms 109000 KB Output is correct
37 Correct 361 ms 110504 KB Output is correct
38 Correct 375 ms 120776 KB Output is correct
39 Correct 181 ms 98760 KB Output is correct
40 Correct 173 ms 98660 KB Output is correct
41 Correct 181 ms 101320 KB Output is correct
42 Correct 171 ms 77000 KB Output is correct
43 Correct 159 ms 77000 KB Output is correct
44 Correct 359 ms 134104 KB Output is correct
45 Correct 357 ms 134328 KB Output is correct
46 Correct 413 ms 162968 KB Output is correct
47 Correct 263 ms 89804 KB Output is correct
48 Correct 264 ms 89288 KB Output is correct
49 Correct 210 ms 90340 KB Output is correct
50 Correct 209 ms 80584 KB Output is correct
51 Correct 213 ms 80588 KB Output is correct
52 Correct 219 ms 90984 KB Output is correct
53 Correct 238 ms 90064 KB Output is correct
54 Correct 205 ms 111340 KB Output is correct
55 Correct 240 ms 91592 KB Output is correct
56 Correct 211 ms 99812 KB Output is correct
57 Correct 187 ms 103668 KB Output is correct
58 Correct 179 ms 94812 KB Output is correct
59 Correct 185 ms 94924 KB Output is correct

Subtask #3
0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 460 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 6 ms 2652 KB Output is correct
6 Correct 6 ms 2652 KB Output is correct
7 Correct 5 ms 2684 KB Output is correct
8 Correct 6 ms 2652 KB Output is correct
9 Correct 6 ms 2688 KB Output is correct
10 Correct 6 ms 2640 KB Output is correct
11 Correct 6 ms 2944 KB Output is correct
12 Correct 4 ms 2908 KB Output is correct
13 Correct 4 ms 2908 KB Output is correct
14 Correct 4 ms 2140 KB Output is correct
15 Correct 5 ms 2136 KB Output is correct
16 Correct 6 ms 2908 KB Output is correct
17 Correct 6 ms 3164 KB Output is correct
18 Correct 6 ms 3676 KB Output is correct
19 Correct 5 ms 2652 KB Output is correct
20 Correct 5 ms 2652 KB Output is correct
21 Correct 4 ms 2652 KB Output is correct
22 Correct 4 ms 2396 KB Output is correct
23 Correct 4 ms 2396 KB Output is correct
24 Correct 4 ms 2556 KB Output is correct
25 Correct 4 ms 2652 KB Output is correct
26 Correct 4 ms 3160 KB Output is correct
27 Correct 5 ms 2652 KB Output is correct
28 Correct 4 ms 2652 KB Output is correct
29 Correct 4 ms 2916 KB Output is correct
30 Correct 4 ms 2648 KB Output is correct
31 Correct 4 ms 2812 KB Output is correct
32 Correct 6 ms 2652 KB Output is correct
33 Correct 391 ms 109284 KB Output is correct
34 Correct 409 ms 109008 KB Output is correct
35 Correct 406 ms 106444 KB Output is correct
36 Correct 365 ms 109000 KB Output is correct
37 Correct 361 ms 110504 KB Output is correct
38 Correct 375 ms 120776 KB Output is correct
39 Correct 181 ms 98760 KB Output is correct
40 Correct 173 ms 98660 KB Output is correct
41 Correct 181 ms 101320 KB Output is correct
42 Correct 171 ms 77000 KB Output is correct
43 Correct 159 ms 77000 KB Output is correct
44 Correct 359 ms 134104 KB Output is correct
45 Correct 357 ms 134328 KB Output is correct
46 Correct 413 ms 162968 KB Output is correct
47 Correct 263 ms 89804 KB Output is correct
48 Correct 264 ms 89288 KB Output is correct
49 Correct 210 ms 90340 KB Output is correct
50 Correct 209 ms 80584 KB Output is correct
51 Correct 213 ms 80588 KB Output is correct
52 Correct 219 ms 90984 KB Output is correct
53 Correct 238 ms 90064 KB Output is correct
54 Correct 205 ms 111340 KB Output is correct
55 Correct 240 ms 91592 KB Output is correct
56 Correct 211 ms 99812 KB Output is correct
57 Correct 187 ms 103668 KB Output is correct
58 Correct 179 ms 94812 KB Output is correct
59 Correct 185 ms 94924 KB Output is correct
60 Correct 0 ms 344 KB Output is correct
61 Correct 0 ms 416 KB Output is correct
62 Correct 0 ms 348 KB Output is correct
63 Correct 0 ms 600 KB Output is correct
64 Correct 339 ms 93576 KB Output is correct
65 Incorrect 330 ms 92616 KB Output isn't correct
66 Halted 0 ms 0 KB -