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题解 | #DNA序列#

import sys string,num = input().rstrip(),int(input().rstrip()) list0 = [] for i in range(2,len(string)+1): for j in range(0,len(string)): ...

2024-03-17

0 230

题解 | #查找输入整数二进制中1的个数#

import sys for line in sys.stdin: a = int(line.split()[0]) print(str(bin(a)).count("1")) bin函数是二进制字符转换

2024-03-16

0 139

题解 | #查找组成一个偶数最接近的两个素数#

i = int(input().rstrip()) list1=[] set1 = set() for x in range(1,i+1): #if i%x == 0: a,b = x,int(i-x) tmp = 0 # if a<b: for...

2024-03-16

0 215

题解 | #找出字符串中第一个只出现一次的字符#

x= 1 word = list(input().rstrip()) str1 = "" for i in word: list_already_used = [] if word.count(i)==1 and i not in list_already_use...

2024-03-15

0 188

题解 | #输入n个整数，输出其中最小的k个#

import sys n = 0 list1 = [] list2 = [] for line in sys.stdin: a = line.split() if n == 0: list1 = a n = 1 elif n == 1: ...

2024-03-15

0 175

题解 | #高精度整数加法#

int1,int2 = input().rstrip(),input().strip() print(int(int1)+int(int2))

2024-03-15

0 170

题解 | #完全数计算#

x = int(input().rstrip()) n = 0 for i in range(1,x+1): list1 = [] #把一个数的公约数和它本身保存到列表 for i1 in range(1,i+1): if i%i1==0: ...

2024-03-14

0 187

题解 | #挑7#

nums = int(input().rstrip()) n = 0 for i in range(1,nums+1): if i%7 == 0: n+=1 elif str(i).count("7")>=1: n+=1 pr...

2024-03-14

0 182

题解 | #表达式求值#

input_list = input().split()[0] result = eval(input_list) list1=[] tmp_digit = "" n =0 for i in input_list: if i.isdigit(): if ...

2024-03-14

0 163

题解 | #输出单向链表中倒数第k个结点#

import sys class listNode(): def __init__(self,val=0): self.next = None self.val = val n=0 list1=[] for line in sys.stdin: a ...

2024-03-13

0 278