結果
| 問題 |
No.1780 [Cherry Anniversary] 真冬に咲く26の櫻の木
|
| コンテスト | |
| ユーザー |
gew1fw
|
| 提出日時 | 2025-06-12 20:44:12 |
| 言語 | PyPy3 (7.3.15) |
| 結果 |
TLE
|
| 実行時間 | - |
| コード長 | 2,477 bytes |
| コンパイル時間 | 164 ms |
| コンパイル使用メモリ | 82,520 KB |
| 実行使用メモリ | 77,532 KB |
| 最終ジャッジ日時 | 2025-06-12 20:44:20 |
| 合計ジャッジ時間 | 6,488 ms |
|
ジャッジサーバーID (参考情報) |
judge5 / judge3 |
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| ファイルパターン | 結果 |
|---|---|
| other | AC * 14 TLE * 1 -- * 27 |
ソースコード
import sys
from collections import deque
def main():
input = sys.stdin.read().split()
idx = 0
C = list(map(int, input[idx:idx+26]))
idx +=26
K = list(map(int, input[idx:idx+26]))
idx +=26
N = int(input[idx])
idx +=1
abilities = {}
for _ in range(N):
S = input[idx]
A = int(input[idx+1])
B = int(input[idx+2])
E = int(input[idx+3])
idx +=4
for c in S:
if c not in abilities:
abilities[c] = []
abilities[c].append((A, B, E))
abilities[c].append((B, A, E))
alphabet = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'
trees = {}
for i in range(26):
c = alphabet[i]
trees[c] = {
'C': C[i],
'K': K[i],
'abilities': abilities.get(c, [])
}
max_sum = -float('inf')
found = False
for target in range(1, 17):
possible = True
total = 0
for c in alphabet:
tree = trees[c]
if tree['K'] == 0:
if tree['C'] != target:
possible = False
break
else:
continue
edges = tree['abilities']
n = 16
V = 16
graph = [[] for _ in range(V+1)]
for a, b, e in edges:
graph[a].append((b, e))
graph[b].append((a, e))
start = tree['C']
end = target
dist = [-float('inf')] * (V+1)
dist[start] = 0
for _ in range(tree['K']):
updated = False
new_dist = [x for x in dist]
for u in range(1, V+1):
if dist[u] == -float('inf'):
continue
for (v, e) in graph[u]:
if dist[u] + e > new_dist[v]:
new_dist[v] = dist[u] + e
updated = True
dist = new_dist
if not updated:
break
if dist[end] == -float('inf'):
possible = False
break
max_energy = dist[end]
total += max_energy
if possible:
if total > max_sum:
max_sum = total
found = True
if found:
print(max_sum)
else:
print("Impossible")
if __name__ == "__main__":
main()
gew1fw