CSES - Aalto Competitive Programming 2024 - wk12 - Mon - Results
Submission details
Task:Chain Reaction
Sender:ilyas.ben
Submission time:2024-11-25 17:10:36 +0200
Language:Python2 (PyPy2)
Status:READY
Result:
Test results
testverdicttime
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Code

from collections import defaultdict
import sys
sys.setrecursionlimit(10**6)

def max_charge(n, s, a, b, edges):
     
    s -= 1
    adj = defaultdict(list)
    for u, v in edges:
        adj[u - 1].append(v - 1)
        adj[v - 1].append(u - 1)
    
    visited = [False] * n
    max_charge = 1

    def dfs(node, current_charge):
        nonlocal max_charge
        visited[node] = True
        max_charge = max(max_charge, current_charge)

        for neighbor in adj[node]:
            if not visited[neighbor]:
                
                new_charge_1 = current_charge + (a[neighbor] - a[node])
                new_charge_2 = current_charge + (b[neighbor] - b[node])
                 
                dfs(neighbor, new_charge_1)
                dfs(neighbor, new_charge_2)
    
     
    dfs(s, 1)
    return max_charge
 
n, s = map(int, input().split())
a = list(map(int, input().split()))
b = list(map(int, input().split()))
edges = [tuple(map(int, input().split())) for _ in range(n - 1)]
 
print(max_charge(n, s, a, b, edges))

Test details

Test 1

Verdict:

input
5 1
4 2 1 1 1
5 2 1 5 4
1 2
1 3
...

correct output
2

user output
(empty)

Error:
File "input/code.py", line 17
    nonlocal max_charge
             ^
SyntaxError: invali...

Test 2

Verdict:

input
4 1
4 2 2 1
1 1 1 1
1 2
2 3
...

correct output
1

user output
(empty)

Error:
File "input/code.py", line 17
    nonlocal max_charge
             ^
SyntaxError: invali...

Test 3

Verdict:

input
10 8
7 2 10 4 5 9 1 2 3 1
9 8 6 6 4 6 10 1 7 8
4 5
10 3
...

correct output
19

user output
(empty)

Error:
File "input/code.py", line 17
    nonlocal max_charge
             ^
SyntaxError: invali...

Test 4

Verdict:

input
10 1
8 8 6 8 1 9 2 2 7 7
9 6 5 9 2 5 6 5 5 8
1 6
6 7
...

correct output
9

user output
(empty)

Error:
File "input/code.py", line 17
    nonlocal max_charge
             ^
SyntaxError: invali...

Test 5

Verdict:

input
10 1
4 1 4 1 4 6 1 1 4 5
5 9 3 9 8 8 10 8 7 10
3 1
1 9
...

correct output
11

user output
(empty)

Error:
File "input/code.py", line 17
    nonlocal max_charge
             ^
SyntaxError: invali...

Test 6

Verdict:

input
10 9
9 9 3 3 3 4 1 7 1 9
3 9 10 5 6 6 9 6 9 6
3 8
8 6
...

correct output
19

user output
(empty)

Error:
File "input/code.py", line 17
    nonlocal max_charge
             ^
SyntaxError: invali...

Test 7

Verdict:

input
10 1
3 4 2 2 2 10 1 5 10 3
10 8 7 6 2 10 1 6 1 3
2 3
10 4
...

correct output
15

user output
(empty)

Error:
File "input/code.py", line 17
    nonlocal max_charge
             ^
SyntaxError: invali...

Test 8

Verdict:

input
10 10
80 58 90 31 79 35 10 75 83 70
48 2 25 73 99 7 53 79 36 89
9 4
7 9
...

correct output
54

user output
(empty)

Error:
File "input/code.py", line 17
    nonlocal max_charge
             ^
SyntaxError: invali...

Test 9

Verdict:

input
10 9
50 84 12 34 86 71 73 78 6 62
29 97 88 56 84 94 94 98 36 96
5 10
3 1
...

correct output
149

user output
(empty)

Error:
File "input/code.py", line 17
    nonlocal max_charge
             ^
SyntaxError: invali...

Test 10

Verdict:

input
10 5
7 66 89 87 27 80 2 11 29 3
98 7 52 66 21 2 26 19 96 31
4 6
1 10
...

correct output
226

user output
(empty)

Error:
File "input/code.py", line 17
    nonlocal max_charge
             ^
SyntaxError: invali...

Test 11

Verdict:

input
10 3
91 13 67 44 6 83 21 8 23 14
54 19 30 26 60 73 22 90 36 84
5 10
4 2
...

correct output
151

user output
(empty)

Error:
File "input/code.py", line 17
    nonlocal max_charge
             ^
SyntaxError: invali...

Test 12

Verdict:

input
10 5
87 61 47 96 50 23 35 54 26 87
16 60 77 75 77 91 59 16 23 51
5 1
10 8
...

correct output
175

user output
(empty)

Error:
File "input/code.py", line 17
    nonlocal max_charge
             ^
SyntaxError: invali...

Test 13

Verdict:

input
97304 87743
876894525 229121152 393060078 ...

correct output
131459576065

user output
(empty)

Error:
File "input/code.py", line 17
    nonlocal max_charge
             ^
SyntaxError: invali...

Test 14

Verdict:

input
74779 53246
763040787 482885163 932005790 ...

correct output
155373737827

user output
(empty)

Error:
File "input/code.py", line 17
    nonlocal max_charge
             ^
SyntaxError: invali...

Test 15

Verdict:

input
89537 85789
432185633 432110306 240073971 ...

correct output
255801753825

user output
(empty)

Error:
File "input/code.py", line 17
    nonlocal max_charge
             ^
SyntaxError: invali...

Test 16

Verdict:

input
99086 49261
283011093 775415197 945248913 ...

correct output
162897193427

user output
(empty)

Error:
File "input/code.py", line 17
    nonlocal max_charge
             ^
SyntaxError: invali...

Test 17

Verdict:

input
95142 68716
163121171 100246843 163249744 ...

correct output
181966887510

user output
(empty)

Error:
File "input/code.py", line 17
    nonlocal max_charge
             ^
SyntaxError: invali...

Test 18

Verdict:

input
19 3
49 73 32 44 84 29 9 76 77 36 9...

correct output
147

user output
(empty)

Error:
File "input/code.py", line 17
    nonlocal max_charge
             ^
SyntaxError: invali...

Test 19

Verdict:

input
19 6
68 94 70 46 91 47 67 100 62 23...

correct output
244

user output
(empty)

Error:
File "input/code.py", line 17
    nonlocal max_charge
             ^
SyntaxError: invali...

Test 20

Verdict:

input
18 3
90 65 90 80 41 5 95 17 53 7 29...

correct output
127

user output
(empty)

Error:
File "input/code.py", line 17
    nonlocal max_charge
             ^
SyntaxError: invali...

Test 21

Verdict:

input
16 1
48 91 87 2 16 39 92 26 1 68 78...

correct output
224

user output
(empty)

Error:
File "input/code.py", line 17
    nonlocal max_charge
             ^
SyntaxError: invali...

Test 22

Verdict:

input
15 2
11 1 37 1 8 20 24 59 42 52 91 ...

correct output
219

user output
(empty)

Error:
File "input/code.py", line 17
    nonlocal max_charge
             ^
SyntaxError: invali...

Test 23

Verdict:

input
94171 47986
552466372 215830212 408722990 ...

correct output
150760767335

user output
(empty)

Error:
File "input/code.py", line 17
    nonlocal max_charge
             ^
SyntaxError: invali...

Test 24

Verdict:

input
94221 86537
45774448 992088337 309200563 7...

correct output
105016024608

user output
(empty)

Error:
File "input/code.py", line 17
    nonlocal max_charge
             ^
SyntaxError: invali...

Test 25

Verdict:

input
96867 68461
39428919 749383323 481367036 5...

correct output
219609902823

user output
(empty)

Error:
File "input/code.py", line 17
    nonlocal max_charge
             ^
SyntaxError: invali...

Test 26

Verdict:

input
96077 83268
95064821 23000135 276477667 48...

correct output
140845793522

user output
(empty)

Error:
File "input/code.py", line 17
    nonlocal max_charge
             ^
SyntaxError: invali...

Test 27

Verdict:

input
99950 74867
864529930 269063846 767129921 ...

correct output
217758011647

user output
(empty)

Error:
File "input/code.py", line 17
    nonlocal max_charge
             ^
SyntaxError: invali...

Test 28

Verdict:

input
97182 41080
671075894 704355936 662862756 ...

correct output
167687874177

user output
(empty)

Error:
File "input/code.py", line 17
    nonlocal max_charge
             ^
SyntaxError: invali...

Test 29

Verdict:

input
96113 18731
554071104 111523361 276689875 ...

correct output
207695993751

user output
(empty)

Error:
File "input/code.py", line 17
    nonlocal max_charge
             ^
SyntaxError: invali...

Test 30

Verdict:

input
92311 6858
440850686 890390689 572816739 ...

correct output
150986466317

user output
(empty)

Error:
File "input/code.py", line 17
    nonlocal max_charge
             ^
SyntaxError: invali...

Test 31

Verdict:

input
99999 25726
949775640 24729596 158203669 2...

correct output
125772383324

user output
(empty)

Error:
File "input/code.py", line 17
    nonlocal max_charge
             ^
SyntaxError: invali...

Test 32

Verdict:

input
97857 32129
20264277 670255203 316861628 1...

correct output
182392362837

user output
(empty)

Error:
File "input/code.py", line 17
    nonlocal max_charge
             ^
SyntaxError: invali...