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题解 | #统计字符#

line = input() alpha, space, digit, other = 0, 0, 0, 0 for ch in line: if ch.isalpha(): alpha += 1 elif ch == ' ': space += 1 ...

2023-03-31

1 194

题解 | #统计每个月兔子的总数#

n = int(input()) dp = [0, 1] # dp[i] = dp[i-1] + dp[i-2] for i in range(2, n+1, 1): dp.append(dp[i-1] + dp[i-2]) print(dp[n])

2023-03-31

1 215

题解 | #蛇形矩阵#

N = int(input()) count = 1 # 使用列表生成式创建二维列表 ans = [[] for _ in range(N)] # 把元素添加进来 for i in range(N): for j in range(i+1): ans[i-j].append(...

2023-03-31

1 190

题解 | #图片整理#

string = input() print("".join(sorted(string)))

2023-03-31

1 162

题解 | #单词倒排#

arr = list(input()) # 将所有非字母替换成空格 for i, ch in enumerate(arr): if not ch.isalpha(): arr[i] = " " # 从列表变成一个字符串 string = "".join(arr) words ...

2023-03-31

1 216

#输入整型数组和排序标识，对其元素按照升序或降序进行排序#

n = int(input()) arr = list(map(int, input().split(" "))) flag = int(input()) if flag == 0: arr.sort() else: arr.sort(reverse=True) for i in...

2023-03-31

0 299

题解 | #输入n个整数，输出其中最小的k个#

# 两个整数n和k line = input() n, k = map(int, line.split(" ")) # 一个整数数组 line = input() arr = list(map(int, line.split(" "))) arr.sort() for i in range(k)...

2023-03-31

1 219

题解 | #截取字符串#

string = input() n = int(input()) # 直接切片即可 print(string[0:n])

2023-03-31

1 163

题解 | #合唱队#

Python3的代码过不了，只能改成C++ #include<iostream> #include <vector> using namespace std; int main() { int n, tmp; cin >> n; vect...

2023-03-30

1 231

题解 | #删除字符串中出现次数最少的字符#

from collections import defaultdict line = input() d = defaultdict(int) for ch in line: d[ch] += 1 # 出现次数最少 min_time = min(d.values()) for ch in ...

2023-03-29

1 258