結果
| 問題 |
No.335 門松宝くじ
|
| コンテスト | |
| ユーザー |
lam6er
|
| 提出日時 | 2025-04-15 22:59:16 |
| 言語 | PyPy3 (7.3.15) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 2,246 bytes |
| コンパイル時間 | 224 ms |
| コンパイル使用メモリ | 81,872 KB |
| 実行使用メモリ | 80,244 KB |
| 最終ジャッジ日時 | 2025-04-15 23:00:50 |
| 合計ジャッジ時間 | 6,967 ms |
|
ジャッジサーバーID (参考情報) |
judge3 / judge1 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 4 |
| other | WA * 1 TLE * 2 -- * 7 |
ソースコード
import sys
def is_kadomatsu(a, b, c):
return (b < a < c) or (c < a < b) or (a < c < b) or (b < c < a)
def main():
input = sys.stdin.read().split()
ptr = 0
N, M = int(input[ptr]), int(input[ptr+1])
ptr += 2
tickets = []
for _ in range(M):
ticket = list(map(int, input[ptr:ptr+N]))
ptr += N
tickets.append(ticket)
best_idx = 0
best_expectation = -1
for idx, ticket in enumerate(tickets):
N_ticket = len(ticket)
max_prize = [[0]*(N_ticket + 1) for _ in range(N_ticket + 1)]
# Find z_max and its position
z_max = max(ticket)
pos_z_max = ticket.index(z_max)
# Process pairs (i, j) where i < j < pos_z_max
for i in range(pos_z_max):
for j in range(i + 1, pos_z_max):
a = ticket[i]
b = ticket[j]
if b < a < z_max:
if max_prize[a][b] < z_max:
max_prize[a][b] = z_max
# Process other triplets
for i in range(N_ticket):
for j in range(i + 1, N_ticket):
for k in range(j + 1, N_ticket):
if k == pos_z_max:
continue
a = ticket[i]
b = ticket[j]
c = ticket[k]
if is_kadomatsu(a, b, c):
max_val = max(a, b, c)
pairs = [(a, b), (a, c), (b, c)]
for x, y in pairs:
if max_prize[x][y] < max_val:
max_prize[x][y] = max_val
# Compute expected value
total = 0
count = N_ticket * (N_ticket - 1)
for x in range(1, N_ticket + 1):
for y in range(1, N_ticket + 1):
if x != y:
total += max_prize[x][y]
expectation = total / count if count != 0 else 0
# Update best
if expectation > best_expectation or (expectation == best_expectation and idx < best_idx):
best_expectation = expectation
best_idx = idx
print(best_idx)
if __name__ == '__main__':
main()
lam6er