oj.uz

답안 #546212

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
546212 2022-04-06T16:21:45 Z Deepesson Power Plant (JOI20_power) C++17
100 / 100
 885 ms 28324 KB 
#include <bits/stdc++.h>
#define MAX 205000
std::vector<int> con[MAX];
bool existe[MAX];
int dfs(int pos,int prev){
    int size=1;
    for(auto&x:con[pos]){
        if(x==prev||existe[x])continue;
        size+=dfs(x,pos);
    }
    return size;
}
int centroide;
int find_centroide(int pos,int prev,int sz){
    int size=1;
    int max=0;
    for(auto&x:con[pos]){
        if(x==prev||existe[x])continue;
        int b =find_centroide(x,pos,sz);
        size+=b;
        max=std::max(max,b);
    }
    max=std::max(max,sz-size);
    if(max<=sz/2)centroide=pos;
    return size;
}
std::string valores;
int explora(int pos,int prev){
    int ans=0;
    if(valores[pos]=='1')ans=1;
    int soma=0;
    for(auto&x:con[pos]){
        if(x==prev||existe[x])continue;
        soma+=explora(x,pos);
    }
    if(valores[pos]=='1')--soma;
    return std::max(ans,soma);
}
int N;
int ans=0;
void Decompor(int Y){
    int SZ = dfs(Y,-1);
    find_centroide(Y,-1,SZ);
    int CN = centroide;
   /// std::cout<<"Centro: "<<CN<<" "<<Y<<" "<<SZ<<"\n";
    existe[CN]=true;
    int tot=0;
    int ans2=0;
    for(auto&x:con[CN]){
        if(existe[x])continue;
        int b=explora(x,CN);
        tot+=b;
        if(valores[CN]=='1')ans2=std::max(ans2,b+1);
    }
    if(valores[CN]=='1'){
        --tot;
        tot=std::max(tot,1);
    }
    ans=std::max(ans,tot);
    ans=std::max(ans,ans2);
    for(auto&x:con[CN]){
        if(existe[x])continue;
        Decompor(x);
    }
}
int main()
{
    std::cin>>N;
    for(int i=1;i!=N;++i){
        int a,b;
        std::cin>>a>>b;
        --a;--b;
        con[a].push_back(b);
        con[b].push_back(a);
    }
    std::cin>>valores;
    Decompor(0);
    std::cout<<ans<<"\n";
}

Subtask #1
6.0 / 6.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 5076 KB Output is correct
2 Correct 2 ms 5076 KB Output is correct
3 Correct 3 ms 5076 KB Output is correct
4 Correct 3 ms 5076 KB Output is correct
5 Correct 3 ms 5076 KB Output is correct
6 Correct 3 ms 5076 KB Output is correct
7 Correct 3 ms 5076 KB Output is correct
8 Correct 3 ms 5076 KB Output is correct
9 Correct 3 ms 5076 KB Output is correct
10 Correct 3 ms 5076 KB Output is correct
11 Correct 3 ms 5076 KB Output is correct
12 Correct 3 ms 5076 KB Output is correct
13 Correct 3 ms 5076 KB Output is correct
14 Correct 2 ms 5076 KB Output is correct
15 Correct 3 ms 5076 KB Output is correct
16 Correct 3 ms 5076 KB Output is correct
17 Correct 3 ms 5076 KB Output is correct
18 Correct 4 ms 5076 KB Output is correct
19 Correct 3 ms 5076 KB Output is correct
20 Correct 3 ms 5076 KB Output is correct
21 Correct 3 ms 5076 KB Output is correct

Subtask #2
41.0 / 41.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 5076 KB Output is correct
2 Correct 2 ms 5076 KB Output is correct
3 Correct 3 ms 5076 KB Output is correct
4 Correct 3 ms 5076 KB Output is correct
5 Correct 3 ms 5076 KB Output is correct
6 Correct 3 ms 5076 KB Output is correct
7 Correct 3 ms 5076 KB Output is correct
8 Correct 3 ms 5076 KB Output is correct
9 Correct 3 ms 5076 KB Output is correct
10 Correct 3 ms 5076 KB Output is correct
11 Correct 3 ms 5076 KB Output is correct
12 Correct 3 ms 5076 KB Output is correct
13 Correct 3 ms 5076 KB Output is correct
14 Correct 2 ms 5076 KB Output is correct
15 Correct 3 ms 5076 KB Output is correct
16 Correct 3 ms 5076 KB Output is correct
17 Correct 3 ms 5076 KB Output is correct
18 Correct 4 ms 5076 KB Output is correct
19 Correct 3 ms 5076 KB Output is correct
20 Correct 3 ms 5076 KB Output is correct
21 Correct 3 ms 5076 KB Output is correct
22 Correct 6 ms 5076 KB Output is correct
23 Correct 6 ms 5076 KB Output is correct
24 Correct 6 ms 5196 KB Output is correct
25 Correct 5 ms 5076 KB Output is correct
26 Correct 5 ms 5076 KB Output is correct
27 Correct 4 ms 5076 KB Output is correct
28 Correct 5 ms 5076 KB Output is correct
29 Correct 5 ms 5204 KB Output is correct
30 Correct 5 ms 5332 KB Output is correct
31 Correct 5 ms 5196 KB Output is correct
32 Correct 7 ms 5164 KB Output is correct
33 Correct 5 ms 5076 KB Output is correct
34 Correct 6 ms 5112 KB Output is correct
35 Correct 5 ms 5076 KB Output is correct
36 Correct 5 ms 5076 KB Output is correct
37 Correct 5 ms 5076 KB Output is correct
38 Correct 4 ms 5076 KB Output is correct
39 Correct 6 ms 5204 KB Output is correct
40 Correct 5 ms 5204 KB Output is correct
41 Correct 6 ms 5204 KB Output is correct
42 Correct 5 ms 5216 KB Output is correct
43 Correct 5 ms 5204 KB Output is correct
44 Correct 4 ms 5204 KB Output is correct
45 Correct 5 ms 5204 KB Output is correct
46 Correct 5 ms 5204 KB Output is correct
47 Correct 4 ms 5204 KB Output is correct
48 Correct 4 ms 5204 KB Output is correct
49 Correct 4 ms 5204 KB Output is correct
50 Correct 4 ms 5204 KB Output is correct
51 Correct 4 ms 5204 KB Output is correct
52 Correct 6 ms 5076 KB Output is correct
53 Correct 5 ms 5204 KB Output is correct
54 Correct 5 ms 5204 KB Output is correct
55 Correct 5 ms 5204 KB Output is correct
56 Correct 4 ms 5204 KB Output is correct
57 Correct 5 ms 5204 KB Output is correct
58 Correct 4 ms 5076 KB Output is correct
59 Correct 4 ms 5076 KB Output is correct
60 Correct 5 ms 5204 KB Output is correct
61 Correct 4 ms 5076 KB Output is correct
62 Correct 6 ms 5204 KB Output is correct
63 Correct 4 ms 5076 KB Output is correct

Subtask #3
53.0 / 53.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 5076 KB Output is correct
2 Correct 2 ms 5076 KB Output is correct
3 Correct 3 ms 5076 KB Output is correct
4 Correct 3 ms 5076 KB Output is correct
5 Correct 3 ms 5076 KB Output is correct
6 Correct 3 ms 5076 KB Output is correct
7 Correct 3 ms 5076 KB Output is correct
8 Correct 3 ms 5076 KB Output is correct
9 Correct 3 ms 5076 KB Output is correct
10 Correct 3 ms 5076 KB Output is correct
11 Correct 3 ms 5076 KB Output is correct
12 Correct 3 ms 5076 KB Output is correct
13 Correct 3 ms 5076 KB Output is correct
14 Correct 2 ms 5076 KB Output is correct
15 Correct 3 ms 5076 KB Output is correct
16 Correct 3 ms 5076 KB Output is correct
17 Correct 3 ms 5076 KB Output is correct
18 Correct 4 ms 5076 KB Output is correct
19 Correct 3 ms 5076 KB Output is correct
20 Correct 3 ms 5076 KB Output is correct
21 Correct 3 ms 5076 KB Output is correct
22 Correct 6 ms 5076 KB Output is correct
23 Correct 6 ms 5076 KB Output is correct
24 Correct 6 ms 5196 KB Output is correct
25 Correct 5 ms 5076 KB Output is correct
26 Correct 5 ms 5076 KB Output is correct
27 Correct 4 ms 5076 KB Output is correct
28 Correct 5 ms 5076 KB Output is correct
29 Correct 5 ms 5204 KB Output is correct
30 Correct 5 ms 5332 KB Output is correct
31 Correct 5 ms 5196 KB Output is correct
32 Correct 7 ms 5164 KB Output is correct
33 Correct 5 ms 5076 KB Output is correct
34 Correct 6 ms 5112 KB Output is correct
35 Correct 5 ms 5076 KB Output is correct
36 Correct 5 ms 5076 KB Output is correct
37 Correct 5 ms 5076 KB Output is correct
38 Correct 4 ms 5076 KB Output is correct
39 Correct 6 ms 5204 KB Output is correct
40 Correct 5 ms 5204 KB Output is correct
41 Correct 6 ms 5204 KB Output is correct
42 Correct 5 ms 5216 KB Output is correct
43 Correct 5 ms 5204 KB Output is correct
44 Correct 4 ms 5204 KB Output is correct
45 Correct 5 ms 5204 KB Output is correct
46 Correct 5 ms 5204 KB Output is correct
47 Correct 4 ms 5204 KB Output is correct
48 Correct 4 ms 5204 KB Output is correct
49 Correct 4 ms 5204 KB Output is correct
50 Correct 4 ms 5204 KB Output is correct
51 Correct 4 ms 5204 KB Output is correct
52 Correct 6 ms 5076 KB Output is correct
53 Correct 5 ms 5204 KB Output is correct
54 Correct 5 ms 5204 KB Output is correct
55 Correct 5 ms 5204 KB Output is correct
56 Correct 4 ms 5204 KB Output is correct
57 Correct 5 ms 5204 KB Output is correct
58 Correct 4 ms 5076 KB Output is correct
59 Correct 4 ms 5076 KB Output is correct
60 Correct 5 ms 5204 KB Output is correct
61 Correct 4 ms 5076 KB Output is correct
62 Correct 6 ms 5204 KB Output is correct
63 Correct 4 ms 5076 KB Output is correct
64 Correct 623 ms 11976 KB Output is correct
65 Correct 615 ms 11996 KB Output is correct
66 Correct 564 ms 11952 KB Output is correct
67 Correct 498 ms 11992 KB Output is correct
68 Correct 496 ms 11872 KB Output is correct
69 Correct 587 ms 12056 KB Output is correct
70 Correct 553 ms 11920 KB Output is correct
71 Correct 501 ms 11976 KB Output is correct
72 Correct 538 ms 12000 KB Output is correct
73 Correct 865 ms 24564 KB Output is correct
74 Correct 885 ms 24504 KB Output is correct
75 Correct 549 ms 11908 KB Output is correct
76 Correct 498 ms 11852 KB Output is correct
77 Correct 609 ms 11868 KB Output is correct
78 Correct 625 ms 11868 KB Output is correct
79 Correct 656 ms 11960 KB Output is correct
80 Correct 529 ms 11868 KB Output is correct
81 Correct 252 ms 12356 KB Output is correct
82 Correct 246 ms 14860 KB Output is correct
83 Correct 757 ms 19812 KB Output is correct
84 Correct 811 ms 21928 KB Output is correct
85 Correct 797 ms 21552 KB Output is correct
86 Correct 662 ms 16076 KB Output is correct
87 Correct 641 ms 15524 KB Output is correct
88 Correct 485 ms 15880 KB Output is correct
89 Correct 485 ms 16044 KB Output is correct
90 Correct 483 ms 15740 KB Output is correct
91 Correct 521 ms 15940 KB Output is correct
92 Correct 451 ms 16232 KB Output is correct
93 Correct 502 ms 20312 KB Output is correct
94 Correct 532 ms 21696 KB Output is correct
95 Correct 512 ms 19092 KB Output is correct
96 Correct 496 ms 17252 KB Output is correct
97 Correct 436 ms 15708 KB Output is correct
98 Correct 427 ms 15196 KB Output is correct
99 Correct 462 ms 15116 KB Output is correct
100 Correct 462 ms 18296 KB Output is correct
101 Correct 455 ms 16252 KB Output is correct
102 Correct 491 ms 15456 KB Output is correct
103 Correct 495 ms 15260 KB Output is correct
104 Correct 207 ms 15548 KB Output is correct
105 Correct 832 ms 24124 KB Output is correct
106 Correct 160 ms 15424 KB Output is correct
107 Correct 158 ms 15336 KB Output is correct
108 Correct 838 ms 28124 KB Output is correct
109 Correct 175 ms 15600 KB Output is correct
110 Correct 870 ms 28324 KB Output is correct
111 Correct 413 ms 14544 KB Output is correct