oj.uz

답안 #453687

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
453687 2021-08-04T15:08:59 Z iulia13 Power Plant (JOI20_power) C++14
100 / 100
 318 ms 31464 KB 
#include <bits/stdc++.h>

using namespace std;
const int N = 2e5 + 5;
vector <int> g[N];
int dp[N], n;
char a[N];
int dfs(int nod, int dad)
{
    int st = a[nod] - '0', bst_son = 0, bst = 0;
    for (auto x : g[nod])
    {
        if (x == dad)
            continue;
        bst = max(bst, dfs(x, nod));
        dp[nod] += dp[x];
        bst_son = max(bst_son, dp[x]);
    }
    dp[nod] = max(st, dp[nod] - st); ///a or b...
    return max(bst, max(dp[nod], bst_son + st));
}
int main()
{
    cin >> n;
    for (int i = 1; i < n; i++)
    {
        int a, b;
        cin >> a >> b;
        g[a].push_back(b);
        g[b].push_back(a);
    }
    cin >> a + 1;
    cout << dfs(1, 0);
    return 0;
}

Compilation message

power.cpp: In function 'int main()':
power.cpp:32:14: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   32 |     cin >> a + 1;
      |            ~~^~~

Subtask #1
6.0 / 6.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 4940 KB Output is correct
2 Correct 3 ms 4940 KB Output is correct
3 Correct 3 ms 4940 KB Output is correct
4 Correct 3 ms 4940 KB Output is correct
5 Correct 3 ms 4940 KB Output is correct
6 Correct 3 ms 4940 KB Output is correct
7 Correct 3 ms 4940 KB Output is correct
8 Correct 3 ms 5000 KB Output is correct
9 Correct 3 ms 4940 KB Output is correct
10 Correct 3 ms 4940 KB Output is correct
11 Correct 3 ms 5076 KB Output is correct
12 Correct 3 ms 4940 KB Output is correct
13 Correct 3 ms 4992 KB Output is correct
14 Correct 3 ms 4940 KB Output is correct
15 Correct 4 ms 4940 KB Output is correct
16 Correct 3 ms 4940 KB Output is correct
17 Correct 3 ms 4940 KB Output is correct
18 Correct 3 ms 4996 KB Output is correct
19 Correct 3 ms 4940 KB Output is correct
20 Correct 3 ms 4940 KB Output is correct
21 Correct 3 ms 4940 KB Output is correct

Subtask #2
41.0 / 41.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 4940 KB Output is correct
2 Correct 3 ms 4940 KB Output is correct
3 Correct 3 ms 4940 KB Output is correct
4 Correct 3 ms 4940 KB Output is correct
5 Correct 3 ms 4940 KB Output is correct
6 Correct 3 ms 4940 KB Output is correct
7 Correct 3 ms 4940 KB Output is correct
8 Correct 3 ms 5000 KB Output is correct
9 Correct 3 ms 4940 KB Output is correct
10 Correct 3 ms 4940 KB Output is correct
11 Correct 3 ms 5076 KB Output is correct
12 Correct 3 ms 4940 KB Output is correct
13 Correct 3 ms 4992 KB Output is correct
14 Correct 3 ms 4940 KB Output is correct
15 Correct 4 ms 4940 KB Output is correct
16 Correct 3 ms 4940 KB Output is correct
17 Correct 3 ms 4940 KB Output is correct
18 Correct 3 ms 4996 KB Output is correct
19 Correct 3 ms 4940 KB Output is correct
20 Correct 3 ms 4940 KB Output is correct
21 Correct 3 ms 4940 KB Output is correct
22 Correct 6 ms 5096 KB Output is correct
23 Correct 4 ms 5068 KB Output is correct
24 Correct 5 ms 5068 KB Output is correct
25 Correct 4 ms 5008 KB Output is correct
26 Correct 4 ms 5068 KB Output is correct
27 Correct 5 ms 5008 KB Output is correct
28 Correct 5 ms 5068 KB Output is correct
29 Correct 5 ms 5196 KB Output is correct
30 Correct 6 ms 5140 KB Output is correct
31 Correct 4 ms 5008 KB Output is correct
32 Correct 4 ms 5012 KB Output is correct
33 Correct 5 ms 5068 KB Output is correct
34 Correct 4 ms 5068 KB Output is correct
35 Correct 5 ms 5008 KB Output is correct
36 Correct 5 ms 5072 KB Output is correct
37 Correct 5 ms 5068 KB Output is correct
38 Correct 5 ms 5068 KB Output is correct
39 Correct 5 ms 5068 KB Output is correct
40 Correct 4 ms 5068 KB Output is correct
41 Correct 4 ms 5132 KB Output is correct
42 Correct 4 ms 5012 KB Output is correct
43 Correct 4 ms 5068 KB Output is correct
44 Correct 5 ms 5140 KB Output is correct
45 Correct 4 ms 5068 KB Output is correct
46 Correct 4 ms 5068 KB Output is correct
47 Correct 4 ms 5068 KB Output is correct
48 Correct 5 ms 5068 KB Output is correct
49 Correct 4 ms 5136 KB Output is correct
50 Correct 4 ms 5068 KB Output is correct
51 Correct 4 ms 5068 KB Output is correct
52 Correct 5 ms 5004 KB Output is correct
53 Correct 5 ms 5004 KB Output is correct
54 Correct 5 ms 5004 KB Output is correct
55 Correct 5 ms 5068 KB Output is correct
56 Correct 4 ms 5068 KB Output is correct
57 Correct 5 ms 5196 KB Output is correct
58 Correct 5 ms 5068 KB Output is correct
59 Correct 5 ms 4980 KB Output is correct
60 Correct 4 ms 5068 KB Output is correct
61 Correct 5 ms 5068 KB Output is correct
62 Correct 5 ms 5196 KB Output is correct
63 Correct 4 ms 5068 KB Output is correct

Subtask #3
53.0 / 53.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 4940 KB Output is correct
2 Correct 3 ms 4940 KB Output is correct
3 Correct 3 ms 4940 KB Output is correct
4 Correct 3 ms 4940 KB Output is correct
5 Correct 3 ms 4940 KB Output is correct
6 Correct 3 ms 4940 KB Output is correct
7 Correct 3 ms 4940 KB Output is correct
8 Correct 3 ms 5000 KB Output is correct
9 Correct 3 ms 4940 KB Output is correct
10 Correct 3 ms 4940 KB Output is correct
11 Correct 3 ms 5076 KB Output is correct
12 Correct 3 ms 4940 KB Output is correct
13 Correct 3 ms 4992 KB Output is correct
14 Correct 3 ms 4940 KB Output is correct
15 Correct 4 ms 4940 KB Output is correct
16 Correct 3 ms 4940 KB Output is correct
17 Correct 3 ms 4940 KB Output is correct
18 Correct 3 ms 4996 KB Output is correct
19 Correct 3 ms 4940 KB Output is correct
20 Correct 3 ms 4940 KB Output is correct
21 Correct 3 ms 4940 KB Output is correct
22 Correct 6 ms 5096 KB Output is correct
23 Correct 4 ms 5068 KB Output is correct
24 Correct 5 ms 5068 KB Output is correct
25 Correct 4 ms 5008 KB Output is correct
26 Correct 4 ms 5068 KB Output is correct
27 Correct 5 ms 5008 KB Output is correct
28 Correct 5 ms 5068 KB Output is correct
29 Correct 5 ms 5196 KB Output is correct
30 Correct 6 ms 5140 KB Output is correct
31 Correct 4 ms 5008 KB Output is correct
32 Correct 4 ms 5012 KB Output is correct
33 Correct 5 ms 5068 KB Output is correct
34 Correct 4 ms 5068 KB Output is correct
35 Correct 5 ms 5008 KB Output is correct
36 Correct 5 ms 5072 KB Output is correct
37 Correct 5 ms 5068 KB Output is correct
38 Correct 5 ms 5068 KB Output is correct
39 Correct 5 ms 5068 KB Output is correct
40 Correct 4 ms 5068 KB Output is correct
41 Correct 4 ms 5132 KB Output is correct
42 Correct 4 ms 5012 KB Output is correct
43 Correct 4 ms 5068 KB Output is correct
44 Correct 5 ms 5140 KB Output is correct
45 Correct 4 ms 5068 KB Output is correct
46 Correct 4 ms 5068 KB Output is correct
47 Correct 4 ms 5068 KB Output is correct
48 Correct 5 ms 5068 KB Output is correct
49 Correct 4 ms 5136 KB Output is correct
50 Correct 4 ms 5068 KB Output is correct
51 Correct 4 ms 5068 KB Output is correct
52 Correct 5 ms 5004 KB Output is correct
53 Correct 5 ms 5004 KB Output is correct
54 Correct 5 ms 5004 KB Output is correct
55 Correct 5 ms 5068 KB Output is correct
56 Correct 4 ms 5068 KB Output is correct
57 Correct 5 ms 5196 KB Output is correct
58 Correct 5 ms 5068 KB Output is correct
59 Correct 5 ms 4980 KB Output is correct
60 Correct 4 ms 5068 KB Output is correct
61 Correct 5 ms 5068 KB Output is correct
62 Correct 5 ms 5196 KB Output is correct
63 Correct 4 ms 5068 KB Output is correct
64 Correct 253 ms 15044 KB Output is correct
65 Correct 253 ms 15060 KB Output is correct
66 Correct 238 ms 14952 KB Output is correct
67 Correct 256 ms 15044 KB Output is correct
68 Correct 249 ms 15012 KB Output is correct
69 Correct 247 ms 15104 KB Output is correct
70 Correct 238 ms 15008 KB Output is correct
71 Correct 256 ms 15028 KB Output is correct
72 Correct 261 ms 15048 KB Output is correct
73 Correct 272 ms 30164 KB Output is correct
74 Correct 292 ms 30088 KB Output is correct
75 Correct 266 ms 14852 KB Output is correct
76 Correct 263 ms 14844 KB Output is correct
77 Correct 300 ms 14884 KB Output is correct
78 Correct 246 ms 14904 KB Output is correct
79 Correct 317 ms 14916 KB Output is correct
80 Correct 287 ms 14828 KB Output is correct
81 Correct 227 ms 15204 KB Output is correct
82 Correct 229 ms 15028 KB Output is correct
83 Correct 274 ms 21280 KB Output is correct
84 Correct 256 ms 23748 KB Output is correct
85 Correct 311 ms 23312 KB Output is correct
86 Correct 259 ms 16572 KB Output is correct
87 Correct 249 ms 15960 KB Output is correct
88 Correct 318 ms 16392 KB Output is correct
89 Correct 247 ms 16472 KB Output is correct
90 Correct 246 ms 16088 KB Output is correct
91 Correct 246 ms 16500 KB Output is correct
92 Correct 246 ms 16904 KB Output is correct
93 Correct 285 ms 19652 KB Output is correct
94 Correct 224 ms 21672 KB Output is correct
95 Correct 244 ms 20292 KB Output is correct
96 Correct 252 ms 17984 KB Output is correct
97 Correct 246 ms 16132 KB Output is correct
98 Correct 233 ms 15692 KB Output is correct
99 Correct 284 ms 15360 KB Output is correct
100 Correct 266 ms 19216 KB Output is correct
101 Correct 256 ms 16836 KB Output is correct
102 Correct 243 ms 15816 KB Output is correct
103 Correct 234 ms 15636 KB Output is correct
104 Correct 196 ms 15836 KB Output is correct
105 Correct 284 ms 26432 KB Output is correct
106 Correct 201 ms 15748 KB Output is correct
107 Correct 189 ms 15584 KB Output is correct
108 Correct 277 ms 31104 KB Output is correct
109 Correct 201 ms 15760 KB Output is correct
110 Correct 277 ms 31464 KB Output is correct
111 Correct 244 ms 14860 KB Output is correct