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题解 | 小红的好排列

import sys n = int(input()) N = n // 3 n_2 = n // 2 MOD = 1000000007 def order(n0, n1): res = 1 for i in range(n0, n1, -1): res = (res...

2025-08-10

0 86

题解 | Sudoku

import sys n = 9 sudoku = [] row_record = [[0]*n for _ in range(n)] col_record = [[0]*n for _ in range(n)] grid_record = [[[0]*n for _ in range(3)] fo...

2025-08-08

0 60