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답안 #786594

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
786594 2023-07-18T09:48:12 Z PoonYaPat Worst Reporter 4 (JOI21_worst_reporter4) C++14
79 / 100
 634 ms 198688 KB 
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<ll,ll> pii;

int n,p[200005],h[200005];
ll val[200005];
vector<int> adj[200005];
set<ll> ss[200005];
map<ll,ll> temp[200005];
bool mark[200005],vis[200005];

void dfs1(int x) {
    vis[x]=true;
    for (auto s : adj[x]) if (!vis[s]) dfs1(s);
}

void dfs2(int x) {
    for (auto s : adj[x]) dfs2(s);

    if (!mark[x]) {
        if (adj[x].size()) {
            swap(ss[x],ss[adj[x][0]]);
            swap(temp[x],temp[adj[x][0]]);

            for (int i=1; i<adj[x].size(); ++i) {
                int c=adj[x][i];
                if (ss[c].size()>ss[x].size()) swap(temp[x],temp[c]), swap(ss[x],ss[c]);

                for (auto s : ss[c]) temp[x][s]+=temp[c][s], ss[x].insert(s);
            }
        }

        temp[x][0]+=val[x]; ss[x].insert(0);
        temp[x][h[x]]-=val[x]; ss[x].insert(h[x]);
        temp[x][h[x]+1]+=val[x]; ss[x].insert(h[x]+1);

        if (temp[x][h[x]]<0) {
            ll k=-temp[x][h[x]];
            auto it=ss[x].find(h[x]);

            temp[x][h[x]]=0;
            auto h=it; --it;
            ss[x].erase(h);

            while (true) {
                if (temp[x][*it]<k) {
                    k-=temp[x][*it];
                    temp[x][*it]=0;
                    auto h=it; --it;
                    ss[x].erase(h);
                } else {
                    temp[x][*it]-=k;
                    if (temp[x][*it]==0) ss[x].erase(it);
                    break;
                }
            }
        }
    } else {
        ss[x].insert(0);
        temp[x][0]=val[x];
        for (auto s : adj[x]) temp[x][0]+=temp[s][0];
    }
}

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

    ll ans=0;
    for (int i=1; i<=n; ++i) {
        if (!vis[i]) {
            dfs1(i);
            while (!vis[p[i]]) {
                i=p[i];
                dfs1(i);
            }

            for (int j=0; j<adj[p[i]].size(); ++j) {
                if (adj[p[i]][j]==i) {
                    swap(adj[p[i]][j],adj[p[i]].back());
                    adj[p[i]].pop_back();
                    break;
                }
            }

            int idx=p[i];
            bool same=true;
            while (idx!=i) {
                if (val[idx]!=val[i]) same=false;
                idx=p[idx];
            }
            
            if (!same) {
                idx=p[i];
                while (idx!=i) {
                    mark[idx]=true;
                    idx=p[idx];
                }
                mark[i]=true;
            }

            dfs2(i);
            ans+=temp[i][0];
        }
    }
    cout<<ans;
}

Compilation message

worst_reporter2.cpp: In function 'void dfs2(int)':
worst_reporter2.cpp:26:28: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   26 |             for (int i=1; i<adj[x].size(); ++i) {
      |                           ~^~~~~~~~~~~~~~
worst_reporter2.cpp: In function 'int main()':
worst_reporter2.cpp:83:28: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   83 |             for (int j=0; j<adj[p[i]].size(); ++j) {
      |                           ~^~~~~~~~~~~~~~~~~

Subtask #1
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 14 ms 23840 KB Output is correct
2 Correct 11 ms 23708 KB Output is correct
3 Correct 10 ms 23764 KB Output is correct
4 Correct 10 ms 23764 KB Output is correct
5 Correct 21 ms 26316 KB Output is correct
6 Correct 18 ms 25600 KB Output is correct
7 Correct 16 ms 25172 KB Output is correct
8 Correct 22 ms 26392 KB Output is correct
9 Correct 18 ms 25568 KB Output is correct
10 Correct 16 ms 25112 KB Output is correct
11 Correct 14 ms 24660 KB Output is correct
12 Correct 19 ms 25628 KB Output is correct
13 Correct 15 ms 24980 KB Output is correct
14 Correct 19 ms 25244 KB Output is correct
15 Correct 18 ms 24596 KB Output is correct
16 Correct 23 ms 27008 KB Output is correct
17 Correct 18 ms 25976 KB Output is correct
18 Correct 14 ms 24660 KB Output is correct
19 Correct 18 ms 25620 KB Output is correct
20 Correct 16 ms 25044 KB Output is correct
21 Correct 12 ms 25044 KB Output is correct
22 Correct 16 ms 25744 KB Output is correct
23 Correct 15 ms 25172 KB Output is correct
24 Correct 18 ms 25616 KB Output is correct
25 Correct 14 ms 25044 KB Output is correct
26 Correct 16 ms 25684 KB Output is correct
27 Correct 18 ms 25696 KB Output is correct
28 Correct 20 ms 25724 KB Output is correct
29 Correct 17 ms 25812 KB Output is correct
30 Correct 17 ms 25620 KB Output is correct
31 Correct 17 ms 25684 KB Output is correct

Subtask #2
65.0 / 65.0

# 결과 실행 시간 메모리 Grader output
1 Correct 14 ms 23840 KB Output is correct
2 Correct 11 ms 23708 KB Output is correct
3 Correct 10 ms 23764 KB Output is correct
4 Correct 10 ms 23764 KB Output is correct
5 Correct 21 ms 26316 KB Output is correct
6 Correct 18 ms 25600 KB Output is correct
7 Correct 16 ms 25172 KB Output is correct
8 Correct 22 ms 26392 KB Output is correct
9 Correct 18 ms 25568 KB Output is correct
10 Correct 16 ms 25112 KB Output is correct
11 Correct 14 ms 24660 KB Output is correct
12 Correct 19 ms 25628 KB Output is correct
13 Correct 15 ms 24980 KB Output is correct
14 Correct 19 ms 25244 KB Output is correct
15 Correct 18 ms 24596 KB Output is correct
16 Correct 23 ms 27008 KB Output is correct
17 Correct 18 ms 25976 KB Output is correct
18 Correct 14 ms 24660 KB Output is correct
19 Correct 18 ms 25620 KB Output is correct
20 Correct 16 ms 25044 KB Output is correct
21 Correct 12 ms 25044 KB Output is correct
22 Correct 16 ms 25744 KB Output is correct
23 Correct 15 ms 25172 KB Output is correct
24 Correct 18 ms 25616 KB Output is correct
25 Correct 14 ms 25044 KB Output is correct
26 Correct 16 ms 25684 KB Output is correct
27 Correct 18 ms 25696 KB Output is correct
28 Correct 20 ms 25724 KB Output is correct
29 Correct 17 ms 25812 KB Output is correct
30 Correct 17 ms 25620 KB Output is correct
31 Correct 17 ms 25684 KB Output is correct
32 Correct 19 ms 26388 KB Output is correct
33 Correct 577 ms 153836 KB Output is correct
34 Correct 435 ms 110184 KB Output is correct
35 Correct 555 ms 148504 KB Output is correct
36 Correct 420 ms 110264 KB Output is correct
37 Correct 266 ms 72720 KB Output is correct
38 Correct 272 ms 58644 KB Output is correct
39 Correct 588 ms 98052 KB Output is correct
40 Correct 277 ms 73000 KB Output is correct
41 Correct 108 ms 72892 KB Output is correct
42 Correct 505 ms 80972 KB Output is correct
43 Correct 285 ms 55976 KB Output is correct
44 Correct 586 ms 198688 KB Output is correct
45 Correct 435 ms 136140 KB Output is correct
46 Correct 161 ms 58784 KB Output is correct
47 Correct 634 ms 100016 KB Output is correct
48 Correct 223 ms 76148 KB Output is correct
49 Correct 159 ms 76092 KB Output is correct
50 Correct 300 ms 100944 KB Output is correct
51 Correct 151 ms 79160 KB Output is correct
52 Correct 476 ms 100640 KB Output is correct
53 Correct 212 ms 76588 KB Output is correct
54 Correct 307 ms 98164 KB Output is correct
55 Correct 489 ms 101020 KB Output is correct
56 Correct 405 ms 102760 KB Output is correct
57 Correct 405 ms 104020 KB Output is correct
58 Correct 428 ms 100412 KB Output is correct
59 Correct 389 ms 100432 KB Output is correct

Subtask #3
0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 14 ms 23840 KB Output is correct
2 Correct 11 ms 23708 KB Output is correct
3 Correct 10 ms 23764 KB Output is correct
4 Correct 10 ms 23764 KB Output is correct
5 Correct 21 ms 26316 KB Output is correct
6 Correct 18 ms 25600 KB Output is correct
7 Correct 16 ms 25172 KB Output is correct
8 Correct 22 ms 26392 KB Output is correct
9 Correct 18 ms 25568 KB Output is correct
10 Correct 16 ms 25112 KB Output is correct
11 Correct 14 ms 24660 KB Output is correct
12 Correct 19 ms 25628 KB Output is correct
13 Correct 15 ms 24980 KB Output is correct
14 Correct 19 ms 25244 KB Output is correct
15 Correct 18 ms 24596 KB Output is correct
16 Correct 23 ms 27008 KB Output is correct
17 Correct 18 ms 25976 KB Output is correct
18 Correct 14 ms 24660 KB Output is correct
19 Correct 18 ms 25620 KB Output is correct
20 Correct 16 ms 25044 KB Output is correct
21 Correct 12 ms 25044 KB Output is correct
22 Correct 16 ms 25744 KB Output is correct
23 Correct 15 ms 25172 KB Output is correct
24 Correct 18 ms 25616 KB Output is correct
25 Correct 14 ms 25044 KB Output is correct
26 Correct 16 ms 25684 KB Output is correct
27 Correct 18 ms 25696 KB Output is correct
28 Correct 20 ms 25724 KB Output is correct
29 Correct 17 ms 25812 KB Output is correct
30 Correct 17 ms 25620 KB Output is correct
31 Correct 17 ms 25684 KB Output is correct
32 Correct 19 ms 26388 KB Output is correct
33 Correct 577 ms 153836 KB Output is correct
34 Correct 435 ms 110184 KB Output is correct
35 Correct 555 ms 148504 KB Output is correct
36 Correct 420 ms 110264 KB Output is correct
37 Correct 266 ms 72720 KB Output is correct
38 Correct 272 ms 58644 KB Output is correct
39 Correct 588 ms 98052 KB Output is correct
40 Correct 277 ms 73000 KB Output is correct
41 Correct 108 ms 72892 KB Output is correct
42 Correct 505 ms 80972 KB Output is correct
43 Correct 285 ms 55976 KB Output is correct
44 Correct 586 ms 198688 KB Output is correct
45 Correct 435 ms 136140 KB Output is correct
46 Correct 161 ms 58784 KB Output is correct
47 Correct 634 ms 100016 KB Output is correct
48 Correct 223 ms 76148 KB Output is correct
49 Correct 159 ms 76092 KB Output is correct
50 Correct 300 ms 100944 KB Output is correct
51 Correct 151 ms 79160 KB Output is correct
52 Correct 476 ms 100640 KB Output is correct
53 Correct 212 ms 76588 KB Output is correct
54 Correct 307 ms 98164 KB Output is correct
55 Correct 489 ms 101020 KB Output is correct
56 Correct 405 ms 102760 KB Output is correct
57 Correct 405 ms 104020 KB Output is correct
58 Correct 428 ms 100412 KB Output is correct
59 Correct 389 ms 100432 KB Output is correct
60 Incorrect 10 ms 23764 KB Output isn't correct
61 Halted 0 ms 0 KB -