답안 #594822

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
594822	2022-07-13T01:06:46 Z	czhang2718	Magic Tree (CEOI19_magictree)	C++17	100 / 100	140 ms	37868 KB

magictree

#include "bits/stdc++.h"
using namespace std;

typedef long long ll;

const int N=1e5;
int n, m, k;
int par[N];
int d[N], w[N];
map<int,ll> mp[N];

int main(){
    cin.tie(0)->sync_with_stdio(0);

    cin >> n >> m >> k;
    for(int i=1; i<n; i++){
        cin >> par[i]; --par[i];
    }
    for(int i=0; i<m; i++){
        int v; cin >> v;
        v--;
        cin >> d[v] >> w[v];
    }

    auto join=[&](int i, int j){
        if(mp[i].size()>mp[j].size()) swap(mp[i], mp[j]);
        for(auto p:mp[i]){
            mp[j][p.first]+=p.second;
        }
    };

    for(int i=n-1; i>=0; i--){
        mp[i][d[i]]+=w[i];
        auto it=mp[i].upper_bound(d[i]);
        while(it!=mp[i].end()){
            if(it->second>w[i]){
                it->second-=w[i];
                break;
            }
            w[i]-=it->second;
            it++;
            mp[i].erase(prev(it));
        }
        // cout << "mp[" << i << "]\n";
        // for(auto p:mp[i]) cout << p.first << " " << p.second << "\n";
        if(i) join(i, par[i]);
    }

    ll ans=0;
    for(auto p:mp[0]) ans+=p.second;
    cout << ans;
}

Subtask #1
6.0 / 6.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	4948 KB	Output is correct
2	Correct	3 ms	4948 KB	Output is correct
3	Correct	3 ms	4948 KB	Output is correct
4	Correct	3 ms	4948 KB	Output is correct
5	Correct	3 ms	4948 KB	Output is correct
6	Correct	2 ms	4948 KB	Output is correct
7	Correct	2 ms	4948 KB	Output is correct
8	Correct	3 ms	4948 KB	Output is correct
9	Correct	3 ms	4948 KB	Output is correct

Subtask #2
3.0 / 3.0

#	결과	실행 시간	메모리	Grader output
1	Correct	54 ms	18704 KB	Output is correct
2	Correct	27 ms	8588 KB	Output is correct
3	Correct	140 ms	37868 KB	Output is correct
4	Correct	73 ms	16044 KB	Output is correct
5	Correct	104 ms	20444 KB	Output is correct

Subtask #3
11.0 / 11.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	4948 KB	Output is correct
2	Correct	4 ms	4948 KB	Output is correct
3	Correct	3 ms	4948 KB	Output is correct
4	Correct	33 ms	6128 KB	Output is correct
5	Correct	51 ms	10100 KB	Output is correct
6	Correct	46 ms	6160 KB	Output is correct

Subtask #4
12.0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	43 ms	10760 KB	Output is correct
2	Correct	39 ms	11800 KB	Output is correct
3	Correct	34 ms	9676 KB	Output is correct
4	Correct	46 ms	14172 KB	Output is correct
5	Correct	33 ms	8204 KB	Output is correct

Subtask #5
16.0 / 16.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	4948 KB	Output is correct
2	Correct	3 ms	4948 KB	Output is correct
3	Correct	3 ms	4948 KB	Output is correct
4	Correct	3 ms	4948 KB	Output is correct
5	Correct	3 ms	4948 KB	Output is correct
6	Correct	2 ms	4948 KB	Output is correct
7	Correct	2 ms	4948 KB	Output is correct
8	Correct	3 ms	4948 KB	Output is correct
9	Correct	3 ms	4948 KB	Output is correct
10	Correct	62 ms	14460 KB	Output is correct
11	Correct	73 ms	13132 KB	Output is correct
12	Correct	31 ms	7640 KB	Output is correct
13	Correct	34 ms	12340 KB	Output is correct
14	Correct	28 ms	6100 KB	Output is correct

Subtask #6
13.0 / 13.0

#	결과	실행 시간	메모리	Grader output
1	Correct	7 ms	6100 KB	Output is correct
2	Correct	20 ms	9988 KB	Output is correct
3	Correct	22 ms	9996 KB	Output is correct
4	Correct	22 ms	10048 KB	Output is correct
5	Correct	16 ms	12628 KB	Output is correct
6	Correct	22 ms	10628 KB	Output is correct
7	Correct	22 ms	7968 KB	Output is correct

Subtask #7
22.0 / 22.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	4948 KB	Output is correct
2	Correct	3 ms	4948 KB	Output is correct
3	Correct	3 ms	4948 KB	Output is correct
4	Correct	3 ms	4948 KB	Output is correct
5	Correct	3 ms	4948 KB	Output is correct
6	Correct	2 ms	4948 KB	Output is correct
7	Correct	2 ms	4948 KB	Output is correct
8	Correct	3 ms	4948 KB	Output is correct
9	Correct	3 ms	4948 KB	Output is correct
10	Correct	4 ms	4948 KB	Output is correct
11	Correct	4 ms	4948 KB	Output is correct
12	Correct	3 ms	4948 KB	Output is correct
13	Correct	33 ms	6128 KB	Output is correct
14	Correct	51 ms	10100 KB	Output is correct
15	Correct	46 ms	6160 KB	Output is correct
16	Correct	62 ms	14460 KB	Output is correct
17	Correct	73 ms	13132 KB	Output is correct
18	Correct	31 ms	7640 KB	Output is correct
19	Correct	34 ms	12340 KB	Output is correct
20	Correct	28 ms	6100 KB	Output is correct
21	Correct	17 ms	8532 KB	Output is correct
22	Correct	82 ms	18084 KB	Output is correct
23	Correct	75 ms	21832 KB	Output is correct
24	Correct	129 ms	30272 KB	Output is correct
25	Correct	78 ms	16136 KB	Output is correct
26	Correct	82 ms	16076 KB	Output is correct
27	Correct	56 ms	9152 KB	Output is correct

Subtask #8
17.0 / 17.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	4948 KB	Output is correct
2	Correct	3 ms	4948 KB	Output is correct
3	Correct	3 ms	4948 KB	Output is correct
4	Correct	3 ms	4948 KB	Output is correct
5	Correct	3 ms	4948 KB	Output is correct
6	Correct	2 ms	4948 KB	Output is correct
7	Correct	2 ms	4948 KB	Output is correct
8	Correct	3 ms	4948 KB	Output is correct
9	Correct	3 ms	4948 KB	Output is correct
10	Correct	54 ms	18704 KB	Output is correct
11	Correct	27 ms	8588 KB	Output is correct
12	Correct	140 ms	37868 KB	Output is correct
13	Correct	73 ms	16044 KB	Output is correct
14	Correct	104 ms	20444 KB	Output is correct
15	Correct	4 ms	4948 KB	Output is correct
16	Correct	4 ms	4948 KB	Output is correct
17	Correct	3 ms	4948 KB	Output is correct
18	Correct	33 ms	6128 KB	Output is correct
19	Correct	51 ms	10100 KB	Output is correct
20	Correct	46 ms	6160 KB	Output is correct
21	Correct	43 ms	10760 KB	Output is correct
22	Correct	39 ms	11800 KB	Output is correct
23	Correct	34 ms	9676 KB	Output is correct
24	Correct	46 ms	14172 KB	Output is correct
25	Correct	33 ms	8204 KB	Output is correct
26	Correct	62 ms	14460 KB	Output is correct
27	Correct	73 ms	13132 KB	Output is correct
28	Correct	31 ms	7640 KB	Output is correct
29	Correct	34 ms	12340 KB	Output is correct
30	Correct	28 ms	6100 KB	Output is correct
31	Correct	7 ms	6100 KB	Output is correct
32	Correct	20 ms	9988 KB	Output is correct
33	Correct	22 ms	9996 KB	Output is correct
34	Correct	22 ms	10048 KB	Output is correct
35	Correct	16 ms	12628 KB	Output is correct
36	Correct	22 ms	10628 KB	Output is correct
37	Correct	22 ms	7968 KB	Output is correct
38	Correct	17 ms	8532 KB	Output is correct
39	Correct	82 ms	18084 KB	Output is correct
40	Correct	75 ms	21832 KB	Output is correct
41	Correct	129 ms	30272 KB	Output is correct
42	Correct	78 ms	16136 KB	Output is correct
43	Correct	82 ms	16076 KB	Output is correct
44	Correct	56 ms	9152 KB	Output is correct
45	Correct	20 ms	9512 KB	Output is correct
46	Correct	73 ms	20456 KB	Output is correct
47	Correct	90 ms	24688 KB	Output is correct
48	Correct	124 ms	35344 KB	Output is correct
49	Correct	80 ms	18248 KB	Output is correct
50	Correct	112 ms	18856 KB	Output is correct
51	Correct	74 ms	11920 KB	Output is correct

답안 #594822

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