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题解 | 最长异或公共子段

for _ in range(int(input())): x, y = map(int,input().split()) print((x^y)&-(x^y))

2026-01-08

1 20

题解 | 完美异或

for i in range(int(input())): n = int(input()) if n % 2 == 0: print('0 '*(n-1),end='') print(n) else: print(f'{n} ...

2026-01-08

1 20

题解 | 被打乱的异或和

for _ in range(int(input())): n = int(input()) l = input().split() print(l[0])

2026-01-08

1 22

题解 | 二进制不同位数

n, m = map(int,input().split()) s = 0 while n > 0 or m > 0: if n % 2 != m % 2: s += 1 n //= 2 m //= 2 print(s)

2026-01-07

1 21

题解 | 二进制数1

n = int(input()) s = 0 while n > 0: a = n % 2 if a == 1: s += 1 n = n // 2 print(s)

2026-01-07

2 18

题解 | 游游的排列构造

n, k = map(int,input().split()) if n == 1: print('1') exit() t = n - k + 1 w = t - 1 for _ in range(k): if t != 0: print(t,end=' '...

2026-01-05

1 19

题解 | 小红的排列构造②

n = int(input()) a = input() z = 1 c = 0 y = 0 if a[-1] == '0': print('-1') exit() for i in a: if i == '1': if y == 0: ...

2026-01-05

1 22

题解 | 构造数列

c = int(input()) for i in range(c): n = int(input()) if n // 2 % 2 == 1: print('NO') else: print('YES') i = 2 ...

2026-01-05

1 16

题解 | 小红的排列构造①

n = int(input()) if n == 1 or n == 2: print('-1') else: print('3 2 1',end=' ') for i in range(4,n+1): print(i,end=' ')

2026-01-01

1 28

题解 | 构造三角形

t = int(input()) for i in range(t): a, b, c, d = map(int,input().split()) print(b,c,c)

2026-01-01

1 21