bai tap them cua bai 3
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string = 'anh di dau choi dodoremon chumeodentutuonglai' #bai a
lonnhat = ['', 0]
for char in string:
if string.count(char) > lonnhat[1]:
lonnhat[0] = char #phep index
lonnhat[1] = string.count(char) #phepindexx
print(lonnhat)
#baib
string1 = 'toi laia'
ketqua = []
for i in string1:
ketqua.append((i, string1.count(i))) # ( ky tu, so lan)
print(ketqua)
Python
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