2846: 统计数字字符个数
摘要：参考代码:s = input()
sum = 0
for i in s:
if i.isdigit():
sum += 1
print(sum)……
题解列表
2847: 找第一个只出现一次的字符
摘要：参考代码:s = input()
for i in s:
if s.count(i) == 1:
print(i)
break
else:
&nbs
菜鸟dp写法，确定在v为i时的最小剩余并存入dp【
摘要：解题思路:注意事项:参考代码:v = int(input())n = int(input())v_list = [int(input()) for _ in range(n)]dp = [i + 1 ……
2849: 石头剪子布
摘要：参考代码:n = int(input())
for _ in range(n):
S1, S2 = map(str, input().split())
if S1 == S2:
……
2850: 输出亲朋字符串
摘要：参考代码:s = input()
s1 = ''
for i in range(len(s) - 1):
s1 += chr(ord(s[i]) + ord(s[i + ……
2851: 合法C标识符
摘要：参考代码:s = input()
for i in s:
if s[0].isdigit():
print('no')
quit()
……
2852: 配对碱基链
摘要：参考代码:s = input()
for i in s:
if i == 'A':
print('T', end='')
……
2853: 字符替换
摘要：参考代码:s, a, b = map(str, input().split())
print(s.replace(a, b))……
找出规律 for循环输出即可
摘要：解题思路:注意事项:参考代码:#include<bits/stdc++.h>using namespace std;using ll = long long;const int N = 1e5+9;i……
2854: 密码翻译
摘要：参考代码:s = list(input())
for i in range(len(s)):
if s[i] == 'z':
s[i] = 'a&……