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简单密码#ascii码ord() chr()

''' print(ord('a'),ord('b'),ord('A'),ord('B')) print(chr(97),chr(98),chr(65),chr(66)) print('A'.lower()) mapping={0:0,1:1,'abc':2,'def':3,'ghi':4,'jkl...

2024-11-07

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题解 | #求int型正整数在内存中存储时1的个数#

''' 5/2=2---1 2/2=1---0 101 9/2=4---1 4/2=2---0 2/2=1---0 1001 7/2=3---1 3/2=1---1 ''' ''' n=int(input()) binary=[] while n/2>=1: binary.appe...

2024-11-07

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int型正整数在内存中存储时1的个数l.count(1)

'''十进制转二进制： 5/2=2---1 2/2=1---0 101 9/2=4---1 4/2=2---0 2/2=1---0 1001 7/2=3---1 3/2=1---1 111 ''' n=int(input()) binary=[] while n/2>=1: bi...

2024-11-07

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字符串排序列表字典式排序l.sort()

#print('A'<'B') ''' l=['fsd','dsa','agh','gfg','fwf','Asf'] l.sort() print(l)''' while True: try: n=int(input()) l=[] f...

2024-11-07

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句子逆序list.reverse() .join()/for

while True: try: words=list((input().split(' '))) #print(type(words),words) words.reverse() #print(words) ...

2024-11-07

0 34

字符串反转 ''.join(reversed('str'))

''' string=input()[::-1] print(string) ''' print(''.join(reversed(input())))

2024-11-07

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题解 | #数字颠倒#

n=str(int(input()))[::-1] print(n)

2024-11-07

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题解 | #字符个数统计 set() 去掉重复字符

''' string=str(input()) l=[] for i in string: if i not in l: l.append(i) #print(l) print(len(l)) ''' print(len(set(input().replace('\n','...

2024-11-07

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题解 | #字符个数统计#

string=str(input()) l=[] for i in string: if i not in l: l.append(i) #print(l) print(len(l))

2024-11-07

0 54

题解 | #合并表记录#

''' n=int(input()) table=dict() # table={} 也可以创建空白字典 for i in range(0,n): lines=input().split() key=int(lines[0]) value=int(lines[1]) ...

2024-11-07

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