oj.uz

Submission #651711

# Submission time Handle Problem Language Result Execution time Memory
651711 2022-10-19T21:23:51 Z beaconmc Power Plant (JOI20_power) PyPy 3
47 / 100
 1500 ms 500724 KB 
import sys

input = lambda: sys.stdin.readline().strip()
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 34 ms 18192 KB Output is correct
2 Correct 33 ms 18228 KB Output is correct
3 Correct 39 ms 18200 KB Output is correct
4 Correct 35 ms 18144 KB Output is correct
5 Correct 36 ms 18160 KB Output is correct
6 Correct 44 ms 18160 KB Output is correct
7 Correct 39 ms 18220 KB Output is correct
8 Correct 39 ms 18168 KB Output is correct
9 Correct 37 ms 18176 KB Output is correct
10 Correct 35 ms 18220 KB Output is correct
11 Correct 34 ms 18152 KB Output is correct
12 Correct 41 ms 18160 KB Output is correct
13 Correct 34 ms 18228 KB Output is correct
14 Correct 36 ms 18188 KB Output is correct
15 Correct 44 ms 18232 KB Output is correct
16 Correct 35 ms 18200 KB Output is correct
17 Correct 34 ms 18220 KB Output is correct
18 Correct 37 ms 18208 KB Output is correct
19 Correct 39 ms 18220 KB Output is correct
20 Correct 38 ms 18112 KB Output is correct
21 Correct 36 ms 18220 KB Output is correct

Subtask #2
41.0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 34 ms 18192 KB Output is correct
2 Correct 33 ms 18228 KB Output is correct
3 Correct 39 ms 18200 KB Output is correct
4 Correct 35 ms 18144 KB Output is correct
5 Correct 36 ms 18160 KB Output is correct
6 Correct 44 ms 18160 KB Output is correct
7 Correct 39 ms 18220 KB Output is correct
8 Correct 39 ms 18168 KB Output is correct
9 Correct 37 ms 18176 KB Output is correct
10 Correct 35 ms 18220 KB Output is correct
11 Correct 34 ms 18152 KB Output is correct
12 Correct 41 ms 18160 KB Output is correct
13 Correct 34 ms 18228 KB Output is correct
14 Correct 36 ms 18188 KB Output is correct
15 Correct 44 ms 18232 KB Output is correct
16 Correct 35 ms 18200 KB Output is correct
17 Correct 34 ms 18220 KB Output is correct
18 Correct 37 ms 18208 KB Output is correct
19 Correct 39 ms 18220 KB Output is correct
20 Correct 38 ms 18112 KB Output is correct
21 Correct 36 ms 18220 KB Output is correct
22 Correct 85 ms 23176 KB Output is correct
23 Correct 83 ms 23196 KB Output is correct
24 Correct 92 ms 25180 KB Output is correct
25 Correct 95 ms 23948 KB Output is correct
26 Correct 105 ms 23468 KB Output is correct
27 Correct 82 ms 23552 KB Output is correct
28 Correct 86 ms 24220 KB Output is correct
29 Correct 90 ms 24452 KB Output is correct
30 Correct 96 ms 24784 KB Output is correct
31 Correct 96 ms 23256 KB Output is correct
32 Correct 94 ms 22968 KB Output is correct
33 Correct 99 ms 24428 KB Output is correct
34 Correct 95 ms 24196 KB Output is correct
35 Correct 89 ms 22936 KB Output is correct
36 Correct 85 ms 22868 KB Output is correct
37 Correct 106 ms 21984 KB Output is correct
38 Correct 105 ms 23528 KB Output is correct
39 Correct 89 ms 25788 KB Output is correct
40 Correct 121 ms 37140 KB Output is correct
41 Correct 101 ms 26948 KB Output is correct
42 Correct 93 ms 25872 KB Output is correct
43 Correct 93 ms 29424 KB Output is correct
44 Correct 112 ms 28280 KB Output is correct
45 Correct 82 ms 25044 KB Output is correct
46 Correct 103 ms 27288 KB Output is correct
47 Correct 104 ms 25720 KB Output is correct
48 Correct 80 ms 23612 KB Output is correct
49 Correct 83 ms 23792 KB Output is correct
50 Correct 90 ms 29556 KB Output is correct
51 Correct 99 ms 28476 KB Output is correct
52 Correct 96 ms 24092 KB Output is correct
53 Correct 90 ms 28224 KB Output is correct
54 Correct 87 ms 25832 KB Output is correct
55 Correct 94 ms 24212 KB Output is correct
56 Correct 69 ms 20968 KB Output is correct
57 Correct 90 ms 25372 KB Output is correct
58 Correct 78 ms 21308 KB Output is correct
59 Correct 69 ms 20948 KB Output is correct
60 Correct 81 ms 24220 KB Output is correct
61 Correct 71 ms 21496 KB Output is correct
62 Correct 82 ms 25880 KB Output is correct
63 Correct 96 ms 22768 KB Output is correct

Subtask #3
0.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 34 ms 18192 KB Output is correct
2 Correct 33 ms 18228 KB Output is correct
3 Correct 39 ms 18200 KB Output is correct
4 Correct 35 ms 18144 KB Output is correct
5 Correct 36 ms 18160 KB Output is correct
6 Correct 44 ms 18160 KB Output is correct
7 Correct 39 ms 18220 KB Output is correct
8 Correct 39 ms 18168 KB Output is correct
9 Correct 37 ms 18176 KB Output is correct
10 Correct 35 ms 18220 KB Output is correct
11 Correct 34 ms 18152 KB Output is correct
12 Correct 41 ms 18160 KB Output is correct
13 Correct 34 ms 18228 KB Output is correct
14 Correct 36 ms 18188 KB Output is correct
15 Correct 44 ms 18232 KB Output is correct
16 Correct 35 ms 18200 KB Output is correct
17 Correct 34 ms 18220 KB Output is correct
18 Correct 37 ms 18208 KB Output is correct
19 Correct 39 ms 18220 KB Output is correct
20 Correct 38 ms 18112 KB Output is correct
21 Correct 36 ms 18220 KB Output is correct
22 Correct 85 ms 23176 KB Output is correct
23 Correct 83 ms 23196 KB Output is correct
24 Correct 92 ms 25180 KB Output is correct
25 Correct 95 ms 23948 KB Output is correct
26 Correct 105 ms 23468 KB Output is correct
27 Correct 82 ms 23552 KB Output is correct
28 Correct 86 ms 24220 KB Output is correct
29 Correct 90 ms 24452 KB Output is correct
30 Correct 96 ms 24784 KB Output is correct
31 Correct 96 ms 23256 KB Output is correct
32 Correct 94 ms 22968 KB Output is correct
33 Correct 99 ms 24428 KB Output is correct
34 Correct 95 ms 24196 KB Output is correct
35 Correct 89 ms 22936 KB Output is correct
36 Correct 85 ms 22868 KB Output is correct
37 Correct 106 ms 21984 KB Output is correct
38 Correct 105 ms 23528 KB Output is correct
39 Correct 89 ms 25788 KB Output is correct
40 Correct 121 ms 37140 KB Output is correct
41 Correct 101 ms 26948 KB Output is correct
42 Correct 93 ms 25872 KB Output is correct
43 Correct 93 ms 29424 KB Output is correct
44 Correct 112 ms 28280 KB Output is correct
45 Correct 82 ms 25044 KB Output is correct
46 Correct 103 ms 27288 KB Output is correct
47 Correct 104 ms 25720 KB Output is correct
48 Correct 80 ms 23612 KB Output is correct
49 Correct 83 ms 23792 KB Output is correct
50 Correct 90 ms 29556 KB Output is correct
51 Correct 99 ms 28476 KB Output is correct
52 Correct 96 ms 24092 KB Output is correct
53 Correct 90 ms 28224 KB Output is correct
54 Correct 87 ms 25832 KB Output is correct
55 Correct 94 ms 24212 KB Output is correct
56 Correct 69 ms 20968 KB Output is correct
57 Correct 90 ms 25372 KB Output is correct
58 Correct 78 ms 21308 KB Output is correct
59 Correct 69 ms 20948 KB Output is correct
60 Correct 81 ms 24220 KB Output is correct
61 Correct 71 ms 21496 KB Output is correct
62 Correct 82 ms 25880 KB Output is correct
63 Correct 96 ms 22768 KB Output is correct
64 Correct 807 ms 65076 KB Output is correct
65 Correct 774 ms 63760 KB Output is correct
66 Correct 716 ms 63388 KB Output is correct
67 Correct 727 ms 63796 KB Output is correct
68 Correct 865 ms 65316 KB Output is correct
69 Correct 806 ms 64468 KB Output is correct
70 Correct 850 ms 64404 KB Output is correct
71 Correct 721 ms 62552 KB Output is correct
72 Correct 697 ms 62000 KB Output is correct
73 Execution timed out 1604 ms 500724 KB Time limit exceeded
74 Halted 0 ms 0 KB -