whiteg

分类

/ 注册

全部文章（共13篇）

题解 | #游游的元素修改#

简单贪心 t = int(input()) for _ in range(t): n,l,r = map(int,input().split()) line = list(map(int,input().split())) if n*l <= sum(line) <...

2024-12-02

0 42

题解 | #合法的括号序列#

mod = 10**9 + 7 ''' dp[i][j]表示前i个字符中钦定j个左括号的序列数量 ''' s = input() n = len(s) dp = [[0]*(n + 1) for _ in range(n + 1)] dp[0][0] = 1 for i in range(1,n+1...

2024-11-30

0 27

题解 | #游游出游#

以重量作为第一关键字入堆，随后跑dij单源最短路算法，时间复杂度O(nlogw) import heapq n,m,h = map(int,input().split()) graph = [[] for _ in range(n+1)] p = [(0,1,float('inf'))] p = [...

2024-11-29

2 26

题解 | #【模板】快速幂Ⅰ ‖ 整数#

t = int(input()) def qpow(x,y,mod): res = 1 while y: if y & 1: res *= x res %= mod x *= x ...

2024-11-26

0 26

题解 | #小红和小紫的取素因子游戏#

def div(x): res = 0 for i in range(2,int(x**0.5) + 1): while x % i == 0: x //= i res += 1 if x > 1: ...

2024-11-26

0 28

题解 | #游游的最小公倍数#

t = int(input()) for _ in range(t): n = int(input()) a = n//2 b = n - a if n == 2: print(1,1) continue if a == b a...

2024-11-26

0 28

题解 | #游游开车出游#

from math import sqrt v, x, y = map(int, input().split()) """ x*f(t) = t + y/(v+tx) = (v + tx) + xy/(v+tx) - v >= 2*sqrt(xy) - v 当且...

2024-11-25

0 28

题解 | #23年OPPO-a的翻转#

a = input() print(int(a)+int(a[::-1]))

2024-11-19

0 38

题解 | #小美的因子查询#

t = int(input()) for _ in range(t): n = int(input()) if n & 1: print('NO') else: print('YES')

2024-11-19

0 29

题解 | #游游的数字圈#

s = input() cnt = 0 for i in s: if i == '0': cnt += 1 elif i == '6': cnt += 1 elif i == '9': cnt += 1 elif i =...

2024-11-19

0 29