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답안 #295463

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
295463 2020-09-09T16:58:21 Z dsabolic Power Plant (JOI20_power) C++17
100 / 100
 404 ms 28936 KB 
#include <bits/stdc++.h>

#define rep(i, a, n) for(int (i) = (a); (i) < (n); ++(i))

using namespace std;

const int N = 2e5 + 50;

int n;
vector<int> graph[N];
string s;
int dp[N];
int sol = 0;

int rek(int v, int p) {
        int sum = 0, mx = 0, cnt = 0;
        for(auto n : graph[v]) {
                if(n == p) continue;
                int val = rek(n, v);
                if(val) cnt++;
                sum += val;
                mx = max(mx, val);
        }


        //if(s[v] == '0' || cnt > 1) dp[v] = max(s[v] - '0', sum - s[v] + '0');
        //else dp[v] = max(1, sum);
        dp[v] = max(s[v] - '0', sum - (s[v] - '0'));

        if(s[v] == '1') {
                sol = max(sol, max(mx + 1, dp[v]));
        } else {
                sol = max(sol, dp[v]);
        }

        return dp[v];
}

int main() {
        cin >> n;
        rep(i, 0, n - 1) {
                int a, b;
                cin >> a >> b;
                --a, --b;
                graph[a].push_back(b);
                graph[b].push_back(a);
        }
        cin >> s;

        rek(0, -1);
        printf("%d\n", sol);

        return 0;
}

Compilation message

power.cpp: In function 'int main()':
power.cpp:3:30: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
    3 | #define rep(i, a, n) for(int (i) = (a); (i) < (n); ++(i))
      |                              ^
power.cpp:41:9: note: in expansion of macro 'rep'
   41 |         rep(i, 0, n - 1) {
      |         ^~~

Subtask #1
6.0 / 6.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 4992 KB Output is correct
2 Correct 3 ms 4992 KB Output is correct
3 Correct 4 ms 5120 KB Output is correct
4 Correct 4 ms 4992 KB Output is correct
5 Correct 3 ms 4992 KB Output is correct
6 Correct 3 ms 4992 KB Output is correct
7 Correct 4 ms 4992 KB Output is correct
8 Correct 4 ms 5024 KB Output is correct
9 Correct 4 ms 4992 KB Output is correct
10 Correct 4 ms 4992 KB Output is correct
11 Correct 3 ms 4992 KB Output is correct
12 Correct 4 ms 4992 KB Output is correct
13 Correct 3 ms 4992 KB Output is correct
14 Correct 4 ms 4992 KB Output is correct
15 Correct 4 ms 5120 KB Output is correct
16 Correct 4 ms 4968 KB Output is correct
17 Correct 4 ms 4992 KB Output is correct
18 Correct 3 ms 4992 KB Output is correct
19 Correct 3 ms 4992 KB Output is correct
20 Correct 4 ms 4992 KB Output is correct
21 Correct 4 ms 4992 KB Output is correct

Subtask #2
41.0 / 41.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 4992 KB Output is correct
2 Correct 3 ms 4992 KB Output is correct
3 Correct 4 ms 5120 KB Output is correct
4 Correct 4 ms 4992 KB Output is correct
5 Correct 3 ms 4992 KB Output is correct
6 Correct 3 ms 4992 KB Output is correct
7 Correct 4 ms 4992 KB Output is correct
8 Correct 4 ms 5024 KB Output is correct
9 Correct 4 ms 4992 KB Output is correct
10 Correct 4 ms 4992 KB Output is correct
11 Correct 3 ms 4992 KB Output is correct
12 Correct 4 ms 4992 KB Output is correct
13 Correct 3 ms 4992 KB Output is correct
14 Correct 4 ms 4992 KB Output is correct
15 Correct 4 ms 5120 KB Output is correct
16 Correct 4 ms 4968 KB Output is correct
17 Correct 4 ms 4992 KB Output is correct
18 Correct 3 ms 4992 KB Output is correct
19 Correct 3 ms 4992 KB Output is correct
20 Correct 4 ms 4992 KB Output is correct
21 Correct 4 ms 4992 KB Output is correct
22 Correct 6 ms 5120 KB Output is correct
23 Correct 6 ms 5120 KB Output is correct
24 Correct 7 ms 5248 KB Output is correct
25 Correct 6 ms 5120 KB Output is correct
26 Correct 6 ms 5120 KB Output is correct
27 Correct 6 ms 5120 KB Output is correct
28 Correct 6 ms 5120 KB Output is correct
29 Correct 6 ms 5248 KB Output is correct
30 Correct 6 ms 5248 KB Output is correct
31 Correct 6 ms 5120 KB Output is correct
32 Correct 6 ms 5120 KB Output is correct
33 Correct 7 ms 5120 KB Output is correct
34 Correct 6 ms 5120 KB Output is correct
35 Correct 6 ms 5120 KB Output is correct
36 Correct 7 ms 5120 KB Output is correct
37 Correct 6 ms 5120 KB Output is correct
38 Correct 6 ms 5120 KB Output is correct
39 Correct 7 ms 5120 KB Output is correct
40 Correct 6 ms 5120 KB Output is correct
41 Correct 6 ms 5120 KB Output is correct
42 Correct 6 ms 5120 KB Output is correct
43 Correct 6 ms 5120 KB Output is correct
44 Correct 6 ms 5120 KB Output is correct
45 Correct 6 ms 5120 KB Output is correct
46 Correct 6 ms 5120 KB Output is correct
47 Correct 6 ms 5120 KB Output is correct
48 Correct 6 ms 5248 KB Output is correct
49 Correct 7 ms 5216 KB Output is correct
50 Correct 6 ms 5120 KB Output is correct
51 Correct 6 ms 5120 KB Output is correct
52 Correct 6 ms 5120 KB Output is correct
53 Correct 6 ms 5120 KB Output is correct
54 Correct 6 ms 5120 KB Output is correct
55 Correct 6 ms 5120 KB Output is correct
56 Correct 6 ms 5120 KB Output is correct
57 Correct 6 ms 5248 KB Output is correct
58 Correct 6 ms 5120 KB Output is correct
59 Correct 6 ms 5120 KB Output is correct
60 Correct 6 ms 5248 KB Output is correct
61 Correct 6 ms 5120 KB Output is correct
62 Correct 6 ms 5248 KB Output is correct
63 Correct 6 ms 5120 KB Output is correct

Subtask #3
53.0 / 53.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 4992 KB Output is correct
2 Correct 3 ms 4992 KB Output is correct
3 Correct 4 ms 5120 KB Output is correct
4 Correct 4 ms 4992 KB Output is correct
5 Correct 3 ms 4992 KB Output is correct
6 Correct 3 ms 4992 KB Output is correct
7 Correct 4 ms 4992 KB Output is correct
8 Correct 4 ms 5024 KB Output is correct
9 Correct 4 ms 4992 KB Output is correct
10 Correct 4 ms 4992 KB Output is correct
11 Correct 3 ms 4992 KB Output is correct
12 Correct 4 ms 4992 KB Output is correct
13 Correct 3 ms 4992 KB Output is correct
14 Correct 4 ms 4992 KB Output is correct
15 Correct 4 ms 5120 KB Output is correct
16 Correct 4 ms 4968 KB Output is correct
17 Correct 4 ms 4992 KB Output is correct
18 Correct 3 ms 4992 KB Output is correct
19 Correct 3 ms 4992 KB Output is correct
20 Correct 4 ms 4992 KB Output is correct
21 Correct 4 ms 4992 KB Output is correct
22 Correct 6 ms 5120 KB Output is correct
23 Correct 6 ms 5120 KB Output is correct
24 Correct 7 ms 5248 KB Output is correct
25 Correct 6 ms 5120 KB Output is correct
26 Correct 6 ms 5120 KB Output is correct
27 Correct 6 ms 5120 KB Output is correct
28 Correct 6 ms 5120 KB Output is correct
29 Correct 6 ms 5248 KB Output is correct
30 Correct 6 ms 5248 KB Output is correct
31 Correct 6 ms 5120 KB Output is correct
32 Correct 6 ms 5120 KB Output is correct
33 Correct 7 ms 5120 KB Output is correct
34 Correct 6 ms 5120 KB Output is correct
35 Correct 6 ms 5120 KB Output is correct
36 Correct 7 ms 5120 KB Output is correct
37 Correct 6 ms 5120 KB Output is correct
38 Correct 6 ms 5120 KB Output is correct
39 Correct 7 ms 5120 KB Output is correct
40 Correct 6 ms 5120 KB Output is correct
41 Correct 6 ms 5120 KB Output is correct
42 Correct 6 ms 5120 KB Output is correct
43 Correct 6 ms 5120 KB Output is correct
44 Correct 6 ms 5120 KB Output is correct
45 Correct 6 ms 5120 KB Output is correct
46 Correct 6 ms 5120 KB Output is correct
47 Correct 6 ms 5120 KB Output is correct
48 Correct 6 ms 5248 KB Output is correct
49 Correct 7 ms 5216 KB Output is correct
50 Correct 6 ms 5120 KB Output is correct
51 Correct 6 ms 5120 KB Output is correct
52 Correct 6 ms 5120 KB Output is correct
53 Correct 6 ms 5120 KB Output is correct
54 Correct 6 ms 5120 KB Output is correct
55 Correct 6 ms 5120 KB Output is correct
56 Correct 6 ms 5120 KB Output is correct
57 Correct 6 ms 5248 KB Output is correct
58 Correct 6 ms 5120 KB Output is correct
59 Correct 6 ms 5120 KB Output is correct
60 Correct 6 ms 5248 KB Output is correct
61 Correct 6 ms 5120 KB Output is correct
62 Correct 6 ms 5248 KB Output is correct
63 Correct 6 ms 5120 KB Output is correct
64 Correct 377 ms 15260 KB Output is correct
65 Correct 370 ms 15240 KB Output is correct
66 Correct 374 ms 15400 KB Output is correct
67 Correct 369 ms 15240 KB Output is correct
68 Correct 372 ms 15152 KB Output is correct
69 Correct 376 ms 15240 KB Output is correct
70 Correct 376 ms 15368 KB Output is correct
71 Correct 371 ms 15240 KB Output is correct
72 Correct 372 ms 15240 KB Output is correct
73 Correct 386 ms 27784 KB Output is correct
74 Correct 399 ms 27912 KB Output is correct
75 Correct 372 ms 15112 KB Output is correct
76 Correct 366 ms 15240 KB Output is correct
77 Correct 385 ms 15112 KB Output is correct
78 Correct 382 ms 15112 KB Output is correct
79 Correct 378 ms 15240 KB Output is correct
80 Correct 376 ms 15112 KB Output is correct
81 Correct 345 ms 15856 KB Output is correct
82 Correct 360 ms 15480 KB Output is correct
83 Correct 382 ms 20360 KB Output is correct
84 Correct 380 ms 22536 KB Output is correct
85 Correct 382 ms 22408 KB Output is correct
86 Correct 372 ms 16648 KB Output is correct
87 Correct 374 ms 16136 KB Output is correct
88 Correct 363 ms 16520 KB Output is correct
89 Correct 369 ms 16452 KB Output is correct
90 Correct 359 ms 16264 KB Output is correct
91 Correct 366 ms 16520 KB Output is correct
92 Correct 359 ms 16904 KB Output is correct
93 Correct 351 ms 19332 KB Output is correct
94 Correct 366 ms 20976 KB Output is correct
95 Correct 360 ms 19688 KB Output is correct
96 Correct 375 ms 17800 KB Output is correct
97 Correct 360 ms 16260 KB Output is correct
98 Correct 372 ms 15880 KB Output is correct
99 Correct 382 ms 15508 KB Output is correct
100 Correct 358 ms 18784 KB Output is correct
101 Correct 374 ms 16688 KB Output is correct
102 Correct 377 ms 16008 KB Output is correct
103 Correct 393 ms 15752 KB Output is correct
104 Correct 314 ms 16240 KB Output is correct
105 Correct 401 ms 24712 KB Output is correct
106 Correct 310 ms 15852 KB Output is correct
107 Correct 311 ms 15848 KB Output is correct
108 Correct 404 ms 28552 KB Output is correct
109 Correct 315 ms 16104 KB Output is correct
110 Correct 399 ms 28936 KB Output is correct
111 Correct 363 ms 15112 KB Output is correct