oj.uz

Submission #651710

# Submission time Handle Problem Language Result Execution time Memory
651710 2022-10-19T21:20:12 Z beaconmc Power Plant (JOI20_power) PyPy 3
47 / 100
 1500 ms 462556 KB 
import sys
sys.setrecursionlimit(1000000000)


n = int(input())
if n==1:
    print(1)
    quit()
edges = [[] for i in range(n+1)]
par = [-1 for i in range(n+1)]
visited = [False for i in range(n+1)]
for i in range(n-1):
    a,b = map(int, input().split())
    edges[a].append(b)
    edges[b].append(a)
sus = input()

root = 1
flag = False

def dfs(a):
    for i in edges[a]:
        if not visited[i]:
            par[i] = a
            visited[i] = True
            dfs(i)
visited[root] = True
dfs(root)
dps = [-1 for i in range(n+1)]
used = [0 for i in range(n+1)]

ans = -1
def dp(a):
    global ans

    if dps[a] != -1:
        return dps[a]
    
    sum = 0
    maxi = 0
    for i in edges[a]:
        if i == par[a]: continue
        sum += dp(i)
        maxi = max(maxi, dp(i))
    if sus[a-1]=="1":
        ans = max(ans, maxi+1, sum-1)
    else:
        ans = max(ans,sum)
        
    dps[a] = max(sum-int(sus[a-1]), int(sus[a-1]))
    return dps[a]
        

dp(root)
print(ans)

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 37 ms 18220 KB Output is correct
2 Correct 33 ms 18164 KB Output is correct
3 Correct 36 ms 18128 KB Output is correct
4 Correct 37 ms 18144 KB Output is correct
5 Correct 36 ms 18164 KB Output is correct
6 Correct 39 ms 18220 KB Output is correct
7 Correct 35 ms 18196 KB Output is correct
8 Correct 35 ms 18244 KB Output is correct
9 Correct 38 ms 18228 KB Output is correct
10 Correct 39 ms 18220 KB Output is correct
11 Correct 32 ms 18136 KB Output is correct
12 Correct 34 ms 18184 KB Output is correct
13 Correct 35 ms 18200 KB Output is correct
14 Correct 35 ms 18212 KB Output is correct
15 Correct 34 ms 18184 KB Output is correct
16 Correct 34 ms 18136 KB Output is correct
17 Correct 38 ms 18264 KB Output is correct
18 Correct 35 ms 18220 KB Output is correct
19 Correct 33 ms 18160 KB Output is correct
20 Correct 38 ms 18156 KB Output is correct
21 Correct 40 ms 18240 KB Output is correct

Subtask #2
41.0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 37 ms 18220 KB Output is correct
2 Correct 33 ms 18164 KB Output is correct
3 Correct 36 ms 18128 KB Output is correct
4 Correct 37 ms 18144 KB Output is correct
5 Correct 36 ms 18164 KB Output is correct
6 Correct 39 ms 18220 KB Output is correct
7 Correct 35 ms 18196 KB Output is correct
8 Correct 35 ms 18244 KB Output is correct
9 Correct 38 ms 18228 KB Output is correct
10 Correct 39 ms 18220 KB Output is correct
11 Correct 32 ms 18136 KB Output is correct
12 Correct 34 ms 18184 KB Output is correct
13 Correct 35 ms 18200 KB Output is correct
14 Correct 35 ms 18212 KB Output is correct
15 Correct 34 ms 18184 KB Output is correct
16 Correct 34 ms 18136 KB Output is correct
17 Correct 38 ms 18264 KB Output is correct
18 Correct 35 ms 18220 KB Output is correct
19 Correct 33 ms 18160 KB Output is correct
20 Correct 38 ms 18156 KB Output is correct
21 Correct 40 ms 18240 KB Output is correct
22 Correct 123 ms 25848 KB Output is correct
23 Correct 125 ms 25280 KB Output is correct
24 Correct 136 ms 26388 KB Output is correct
25 Correct 122 ms 26000 KB Output is correct
26 Correct 134 ms 25888 KB Output is correct
27 Correct 165 ms 26300 KB Output is correct
28 Correct 117 ms 25380 KB Output is correct
29 Correct 121 ms 26272 KB Output is correct
30 Correct 146 ms 27580 KB Output is correct
31 Correct 134 ms 25500 KB Output is correct
32 Correct 125 ms 25760 KB Output is correct
33 Correct 136 ms 26360 KB Output is correct
34 Correct 128 ms 26652 KB Output is correct
35 Correct 131 ms 25212 KB Output is correct
36 Correct 134 ms 25432 KB Output is correct
37 Correct 118 ms 24860 KB Output is correct
38 Correct 142 ms 25972 KB Output is correct
39 Correct 129 ms 26944 KB Output is correct
40 Correct 186 ms 37468 KB Output is correct
41 Correct 142 ms 28160 KB Output is correct
42 Correct 125 ms 26952 KB Output is correct
43 Correct 126 ms 28012 KB Output is correct
44 Correct 126 ms 28272 KB Output is correct
45 Correct 147 ms 26728 KB Output is correct
46 Correct 182 ms 28604 KB Output is correct
47 Correct 116 ms 26568 KB Output is correct
48 Correct 110 ms 25500 KB Output is correct
49 Correct 116 ms 25688 KB Output is correct
50 Correct 165 ms 33276 KB Output is correct
51 Correct 133 ms 29724 KB Output is correct
52 Correct 138 ms 26396 KB Output is correct
53 Correct 124 ms 29324 KB Output is correct
54 Correct 153 ms 27164 KB Output is correct
55 Correct 121 ms 26264 KB Output is correct
56 Correct 97 ms 23464 KB Output is correct
57 Correct 127 ms 27676 KB Output is correct
58 Correct 102 ms 23956 KB Output is correct
59 Correct 114 ms 23476 KB Output is correct
60 Correct 158 ms 27568 KB Output is correct
61 Correct 101 ms 23948 KB Output is correct
62 Correct 116 ms 28752 KB Output is correct
63 Correct 119 ms 25276 KB Output is correct

Subtask #3
0.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 37 ms 18220 KB Output is correct
2 Correct 33 ms 18164 KB Output is correct
3 Correct 36 ms 18128 KB Output is correct
4 Correct 37 ms 18144 KB Output is correct
5 Correct 36 ms 18164 KB Output is correct
6 Correct 39 ms 18220 KB Output is correct
7 Correct 35 ms 18196 KB Output is correct
8 Correct 35 ms 18244 KB Output is correct
9 Correct 38 ms 18228 KB Output is correct
10 Correct 39 ms 18220 KB Output is correct
11 Correct 32 ms 18136 KB Output is correct
12 Correct 34 ms 18184 KB Output is correct
13 Correct 35 ms 18200 KB Output is correct
14 Correct 35 ms 18212 KB Output is correct
15 Correct 34 ms 18184 KB Output is correct
16 Correct 34 ms 18136 KB Output is correct
17 Correct 38 ms 18264 KB Output is correct
18 Correct 35 ms 18220 KB Output is correct
19 Correct 33 ms 18160 KB Output is correct
20 Correct 38 ms 18156 KB Output is correct
21 Correct 40 ms 18240 KB Output is correct
22 Correct 123 ms 25848 KB Output is correct
23 Correct 125 ms 25280 KB Output is correct
24 Correct 136 ms 26388 KB Output is correct
25 Correct 122 ms 26000 KB Output is correct
26 Correct 134 ms 25888 KB Output is correct
27 Correct 165 ms 26300 KB Output is correct
28 Correct 117 ms 25380 KB Output is correct
29 Correct 121 ms 26272 KB Output is correct
30 Correct 146 ms 27580 KB Output is correct
31 Correct 134 ms 25500 KB Output is correct
32 Correct 125 ms 25760 KB Output is correct
33 Correct 136 ms 26360 KB Output is correct
34 Correct 128 ms 26652 KB Output is correct
35 Correct 131 ms 25212 KB Output is correct
36 Correct 134 ms 25432 KB Output is correct
37 Correct 118 ms 24860 KB Output is correct
38 Correct 142 ms 25972 KB Output is correct
39 Correct 129 ms 26944 KB Output is correct
40 Correct 186 ms 37468 KB Output is correct
41 Correct 142 ms 28160 KB Output is correct
42 Correct 125 ms 26952 KB Output is correct
43 Correct 126 ms 28012 KB Output is correct
44 Correct 126 ms 28272 KB Output is correct
45 Correct 147 ms 26728 KB Output is correct
46 Correct 182 ms 28604 KB Output is correct
47 Correct 116 ms 26568 KB Output is correct
48 Correct 110 ms 25500 KB Output is correct
49 Correct 116 ms 25688 KB Output is correct
50 Correct 165 ms 33276 KB Output is correct
51 Correct 133 ms 29724 KB Output is correct
52 Correct 138 ms 26396 KB Output is correct
53 Correct 124 ms 29324 KB Output is correct
54 Correct 153 ms 27164 KB Output is correct
55 Correct 121 ms 26264 KB Output is correct
56 Correct 97 ms 23464 KB Output is correct
57 Correct 127 ms 27676 KB Output is correct
58 Correct 102 ms 23956 KB Output is correct
59 Correct 114 ms 23476 KB Output is correct
60 Correct 158 ms 27568 KB Output is correct
61 Correct 101 ms 23948 KB Output is correct
62 Correct 116 ms 28752 KB Output is correct
63 Correct 119 ms 25276 KB Output is correct
64 Correct 1056 ms 68384 KB Output is correct
65 Correct 1040 ms 66704 KB Output is correct
66 Correct 987 ms 65312 KB Output is correct
67 Correct 999 ms 68296 KB Output is correct
68 Correct 1002 ms 68700 KB Output is correct
69 Correct 1022 ms 68260 KB Output is correct
70 Correct 1084 ms 67324 KB Output is correct
71 Correct 963 ms 65268 KB Output is correct
72 Correct 934 ms 66196 KB Output is correct
73 Execution timed out 1612 ms 462556 KB Time limit exceeded
74 Halted 0 ms 0 KB -