Task: | Download Speed |
Sender: | esya_rae |
Submission time: | 2024-10-23 21:56:02 +0300 |
Language: | Python3 (PyPy3) |
Status: | READY |
Result: | TIME LIMIT EXCEEDED |
test | verdict | time | |
---|---|---|---|
#1 | ACCEPTED | 0.04 s | details |
#2 | ACCEPTED | 0.04 s | details |
#3 | ACCEPTED | 0.04 s | details |
#4 | ACCEPTED | 0.04 s | details |
#5 | ACCEPTED | 0.06 s | details |
#6 | TIME LIMIT EXCEEDED | -- | details |
#7 | TIME LIMIT EXCEEDED | -- | details |
#8 | ACCEPTED | 0.04 s | details |
#9 | TIME LIMIT EXCEEDED | -- | details |
#10 | ACCEPTED | 0.04 s | details |
#11 | ACCEPTED | 0.07 s | details |
#12 | ACCEPTED | 0.04 s | details |
Code
import math import sys sys.setrecursionlimit(10**8) def find_path(s, f, visited=None, path=None): global g, n if visited is None: visited = [False] * n if path is None: path = [] path.append(s) visited[s] = True if s == f: return path for i, w in enumerate(g[s]): if not visited[i] and w > 0: res_path = find_path(i, f, visited=visited, path=path) if res_path: return res_path return None def ff(s, f): global g, n, paths res = 0 path = find_path(s, f) while path: # print(*path) # print(g) min_flow = math.inf for i in range(len(path) - 1): a, b = path[i], path[i + 1] min_flow = min(min_flow, g[a][b]) for i in range(len(path) - 1): a, b = path[i], path[i + 1] g[a][b] -= min_flow g[b][a] += min_flow res += min_flow path = find_path(s, f) return res n, m = map(int, input().split()) g = [[0 for _ in range(n)] for _ in range(n)] paths = [] for i in range(m): a, b, c = map(int, input().split()) g[a - 1][b - 1] += c # print(g) res = ff(0, n - 1) print(res)
Test details
Test 1
Verdict: ACCEPTED
input |
---|
4 3 1 2 5 2 3 3 3 4 6 |
correct output |
---|
3 |
user output |
---|
3 |
Test 2
Verdict: ACCEPTED
input |
---|
4 5 1 2 1 1 3 1 2 3 1 2 4 1 ... |
correct output |
---|
2 |
user output |
---|
2 |
Test 3
Verdict: ACCEPTED
input |
---|
4 5 1 2 1000000000 1 3 1000000000 2 3 1 2 4 1000000000 ... |
correct output |
---|
2000000000 |
user output |
---|
2000000000 |
Test 4
Verdict: ACCEPTED
input |
---|
2 1 2 1 100 |
correct output |
---|
0 |
user output |
---|
0 |
Test 5
Verdict: ACCEPTED
input |
---|
2 1000 1 2 1000000000 1 2 1000000000 1 2 1000000000 1 2 1000000000 ... |
correct output |
---|
1000000000000 |
user output |
---|
1000000000000 |
Test 6
Verdict: TIME LIMIT EXCEEDED
input |
---|
500 998 1 2 54 1 3 59 1 4 83 2 5 79 ... |
correct output |
---|
60 |
user output |
---|
(empty) |
Test 7
Verdict: TIME LIMIT EXCEEDED
input |
---|
500 998 1 2 530873053 1 3 156306296 1 4 478040476 3 5 303609600 ... |
correct output |
---|
1093765123 |
user output |
---|
(empty) |
Test 8
Verdict: ACCEPTED
input |
---|
2 1 1 2 1 |
correct output |
---|
1 |
user output |
---|
1 |
Test 9
Verdict: TIME LIMIT EXCEEDED
input |
---|
4 5 1 2 3 2 4 2 1 3 4 3 4 5 ... |
correct output |
---|
6 |
user output |
---|
(empty) |
Test 10
Verdict: ACCEPTED
input |
---|
4 5 1 2 1 1 3 2 3 2 1 2 4 2 ... |
correct output |
---|
3 |
user output |
---|
3 |
Test 11
Verdict: ACCEPTED
input |
---|
10 999 1 2 1000000000 1 2 1000000000 1 2 1000000000 1 2 1000000000 ... |
correct output |
---|
111000000000 |
user output |
---|
111000000000 |
Test 12
Verdict: ACCEPTED
input |
---|
7 9 1 2 1 1 3 1 1 4 1 2 5 1 ... |
correct output |
---|
2 |
user output |
---|
2 |