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답안 #973969

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
973969 2024-05-02T14:03:58 Z phoenix Worst Reporter 4 (JOI21_worst_reporter4) C++17
100 / 100
 345 ms 195644 KB 
#include <bits/stdc++.h>

using namespace std;
using ll = long long;

const int N = 200200;

int n;

int p[N];
int h[N];
int c[N];

map<int, ll> mp[N];
vector<int> g[N];

// u <- v
void join(int u, int v) {
    if ((int)mp[u].size() < (int)mp[v].size()) swap(mp[u], mp[v]);
    for (auto c : mp[v]) 
        mp[u][c.first] += c.second; 
};

bool vis[N];

void dfs(int v) {
    vis[v] = true;
    for (int to : g[v]) {
        dfs(to);
        join(v, to);
    }
    int s = c[v];
    auto it = mp[v].upper_bound(h[v]);
    while (it != mp[v].begin()) {
        it--;
        if (s >= it->second) {
            s -= it->second;
            mp[v].erase(it);
        } else {
            mp[v][it->first] = it->second - s;
            s = 0;
            break;
        }
        it = mp[v].upper_bound(h[v]);
    }
    mp[v][0] += c[v] - s;
    mp[v][h[v] + 1] += c[v];    
}

int main() {
    ios::sync_with_stdio(0);
    cin.tie(0);
    cin >> n;
    for (int i = 1; i <= n; i++) 
        cin >> p[i] >> h[i] >> c[i];

    vector<deque<int>> cycles;

    for (int i = 1; i <= n; i++) if (!vis[i]) {
        deque<int> cyc;
        int x = i;
        while (!vis[x]) {
            vis[x] = true;
            cyc.push_back(x);
            x = p[x];
        }
        while (!cyc.empty() && cyc.front() != x) cyc.pop_front();
        // cout << '{';
        // for (int c : cyc) cout << c << ' ';
        // cout << '}' << '\n';
        if (!cyc.empty()) 
            cycles.push_back(cyc);
    }    
    for (int i = 1; i <= n; i++) vis[i] = false;

    for (auto c : cycles) for (int x : c) 
        vis[x] = true;
    for (int i = 1; i <= n; i++) if (!vis[i]) 
        g[p[i]].push_back(i);

    ll res = 0;
    for (auto cyc : cycles) {
        for (int v : cyc) {
            for (int to : g[v]) {
                dfs(to);   
                join(v, to);
            }
            mp[v][0] += c[v];
            mp[v][h[v]] -= c[v];
            mp[v][h[v] + 1] += c[v];
        }
        for (int v : cyc)
            if (v != cyc.back()) 
                join(cyc.back(), v);
        ll val = 0;
        ll mn = 1e18;
        for (auto c : mp[cyc.back()]) {
            val += c.second;
            if (val < mn) mn = val;
        }   
        res += mn;
    }
    cout << res;
    return 0;
}

Subtask #1
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 16732 KB Output is correct
2 Correct 3 ms 16732 KB Output is correct
3 Correct 4 ms 16732 KB Output is correct
4 Correct 4 ms 16728 KB Output is correct
5 Correct 8 ms 18020 KB Output is correct
6 Correct 7 ms 17660 KB Output is correct
7 Correct 7 ms 17500 KB Output is correct
8 Correct 8 ms 18168 KB Output is correct
9 Correct 8 ms 17756 KB Output is correct
10 Correct 6 ms 17404 KB Output is correct
11 Correct 6 ms 17244 KB Output is correct
12 Correct 6 ms 17664 KB Output is correct
13 Correct 5 ms 17500 KB Output is correct
14 Correct 6 ms 17244 KB Output is correct
15 Correct 6 ms 17244 KB Output is correct
16 Correct 9 ms 18524 KB Output is correct
17 Correct 8 ms 17756 KB Output is correct
18 Correct 5 ms 17244 KB Output is correct
19 Correct 7 ms 17756 KB Output is correct
20 Correct 6 ms 17496 KB Output is correct
21 Correct 6 ms 17500 KB Output is correct
22 Correct 7 ms 17756 KB Output is correct
23 Correct 7 ms 17496 KB Output is correct
24 Correct 7 ms 17756 KB Output is correct
25 Correct 6 ms 17660 KB Output is correct
26 Correct 6 ms 17656 KB Output is correct
27 Correct 7 ms 17756 KB Output is correct
28 Correct 6 ms 17844 KB Output is correct
29 Correct 6 ms 17752 KB Output is correct
30 Correct 6 ms 17756 KB Output is correct
31 Correct 7 ms 17756 KB Output is correct

Subtask #2
65.0 / 65.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 16732 KB Output is correct
2 Correct 3 ms 16732 KB Output is correct
3 Correct 4 ms 16732 KB Output is correct
4 Correct 4 ms 16728 KB Output is correct
5 Correct 8 ms 18020 KB Output is correct
6 Correct 7 ms 17660 KB Output is correct
7 Correct 7 ms 17500 KB Output is correct
8 Correct 8 ms 18168 KB Output is correct
9 Correct 8 ms 17756 KB Output is correct
10 Correct 6 ms 17404 KB Output is correct
11 Correct 6 ms 17244 KB Output is correct
12 Correct 6 ms 17664 KB Output is correct
13 Correct 5 ms 17500 KB Output is correct
14 Correct 6 ms 17244 KB Output is correct
15 Correct 6 ms 17244 KB Output is correct
16 Correct 9 ms 18524 KB Output is correct
17 Correct 8 ms 17756 KB Output is correct
18 Correct 5 ms 17244 KB Output is correct
19 Correct 7 ms 17756 KB Output is correct
20 Correct 6 ms 17496 KB Output is correct
21 Correct 6 ms 17500 KB Output is correct
22 Correct 7 ms 17756 KB Output is correct
23 Correct 7 ms 17496 KB Output is correct
24 Correct 7 ms 17756 KB Output is correct
25 Correct 6 ms 17660 KB Output is correct
26 Correct 6 ms 17656 KB Output is correct
27 Correct 7 ms 17756 KB Output is correct
28 Correct 6 ms 17844 KB Output is correct
29 Correct 6 ms 17752 KB Output is correct
30 Correct 6 ms 17756 KB Output is correct
31 Correct 7 ms 17756 KB Output is correct
32 Correct 10 ms 18012 KB Output is correct
33 Correct 301 ms 85804 KB Output is correct
34 Correct 214 ms 60784 KB Output is correct
35 Correct 279 ms 83064 KB Output is correct
36 Correct 206 ms 60948 KB Output is correct
37 Correct 148 ms 41944 KB Output is correct
38 Correct 128 ms 37536 KB Output is correct
39 Correct 133 ms 50468 KB Output is correct
40 Correct 119 ms 50400 KB Output is correct
41 Correct 81 ms 50384 KB Output is correct
42 Correct 134 ms 39372 KB Output is correct
43 Correct 117 ms 38992 KB Output is correct
44 Correct 282 ms 110868 KB Output is correct
45 Correct 199 ms 75348 KB Output is correct
46 Correct 85 ms 37460 KB Output is correct
47 Correct 199 ms 55392 KB Output is correct
48 Correct 105 ms 48368 KB Output is correct
49 Correct 83 ms 48464 KB Output is correct
50 Correct 221 ms 59360 KB Output is correct
51 Correct 89 ms 47052 KB Output is correct
52 Correct 248 ms 56484 KB Output is correct
53 Correct 119 ms 49212 KB Output is correct
54 Correct 86 ms 50388 KB Output is correct
55 Correct 168 ms 57172 KB Output is correct
56 Correct 142 ms 58196 KB Output is correct
57 Correct 139 ms 59360 KB Output is correct
58 Correct 152 ms 57420 KB Output is correct
59 Correct 167 ms 57424 KB Output is correct

Subtask #3
21.0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 16732 KB Output is correct
2 Correct 3 ms 16732 KB Output is correct
3 Correct 4 ms 16732 KB Output is correct
4 Correct 4 ms 16728 KB Output is correct
5 Correct 8 ms 18020 KB Output is correct
6 Correct 7 ms 17660 KB Output is correct
7 Correct 7 ms 17500 KB Output is correct
8 Correct 8 ms 18168 KB Output is correct
9 Correct 8 ms 17756 KB Output is correct
10 Correct 6 ms 17404 KB Output is correct
11 Correct 6 ms 17244 KB Output is correct
12 Correct 6 ms 17664 KB Output is correct
13 Correct 5 ms 17500 KB Output is correct
14 Correct 6 ms 17244 KB Output is correct
15 Correct 6 ms 17244 KB Output is correct
16 Correct 9 ms 18524 KB Output is correct
17 Correct 8 ms 17756 KB Output is correct
18 Correct 5 ms 17244 KB Output is correct
19 Correct 7 ms 17756 KB Output is correct
20 Correct 6 ms 17496 KB Output is correct
21 Correct 6 ms 17500 KB Output is correct
22 Correct 7 ms 17756 KB Output is correct
23 Correct 7 ms 17496 KB Output is correct
24 Correct 7 ms 17756 KB Output is correct
25 Correct 6 ms 17660 KB Output is correct
26 Correct 6 ms 17656 KB Output is correct
27 Correct 7 ms 17756 KB Output is correct
28 Correct 6 ms 17844 KB Output is correct
29 Correct 6 ms 17752 KB Output is correct
30 Correct 6 ms 17756 KB Output is correct
31 Correct 7 ms 17756 KB Output is correct
32 Correct 10 ms 18012 KB Output is correct
33 Correct 301 ms 85804 KB Output is correct
34 Correct 214 ms 60784 KB Output is correct
35 Correct 279 ms 83064 KB Output is correct
36 Correct 206 ms 60948 KB Output is correct
37 Correct 148 ms 41944 KB Output is correct
38 Correct 128 ms 37536 KB Output is correct
39 Correct 133 ms 50468 KB Output is correct
40 Correct 119 ms 50400 KB Output is correct
41 Correct 81 ms 50384 KB Output is correct
42 Correct 134 ms 39372 KB Output is correct
43 Correct 117 ms 38992 KB Output is correct
44 Correct 282 ms 110868 KB Output is correct
45 Correct 199 ms 75348 KB Output is correct
46 Correct 85 ms 37460 KB Output is correct
47 Correct 199 ms 55392 KB Output is correct
48 Correct 105 ms 48368 KB Output is correct
49 Correct 83 ms 48464 KB Output is correct
50 Correct 221 ms 59360 KB Output is correct
51 Correct 89 ms 47052 KB Output is correct
52 Correct 248 ms 56484 KB Output is correct
53 Correct 119 ms 49212 KB Output is correct
54 Correct 86 ms 50388 KB Output is correct
55 Correct 168 ms 57172 KB Output is correct
56 Correct 142 ms 58196 KB Output is correct
57 Correct 139 ms 59360 KB Output is correct
58 Correct 152 ms 57420 KB Output is correct
59 Correct 167 ms 57424 KB Output is correct
60 Correct 3 ms 16728 KB Output is correct
61 Correct 3 ms 16732 KB Output is correct
62 Correct 3 ms 16884 KB Output is correct
63 Correct 4 ms 16984 KB Output is correct
64 Correct 253 ms 69308 KB Output is correct
65 Correct 207 ms 52712 KB Output is correct
66 Correct 257 ms 70024 KB Output is correct
67 Correct 192 ms 52560 KB Output is correct
68 Correct 145 ms 38732 KB Output is correct
69 Correct 131 ms 35424 KB Output is correct
70 Correct 295 ms 85584 KB Output is correct
71 Correct 194 ms 61524 KB Output is correct
72 Correct 345 ms 86244 KB Output is correct
73 Correct 181 ms 61524 KB Output is correct
74 Correct 301 ms 70012 KB Output is correct
75 Correct 196 ms 51344 KB Output is correct
76 Correct 152 ms 49744 KB Output is correct
77 Correct 321 ms 77132 KB Output is correct
78 Correct 137 ms 54740 KB Output is correct
79 Correct 326 ms 89760 KB Output is correct
80 Correct 199 ms 62548 KB Output is correct
81 Correct 150 ms 52048 KB Output is correct
82 Correct 284 ms 86700 KB Output is correct
83 Correct 196 ms 195644 KB Output is correct
84 Correct 288 ms 79444 KB Output is correct
85 Correct 268 ms 79444 KB Output is correct
86 Correct 237 ms 67396 KB Output is correct
87 Correct 263 ms 73276 KB Output is correct
88 Correct 236 ms 73180 KB Output is correct