题解 | 求int型正整数在内存中存储时1的个数
import sys
n = int(input())
binns = bin(n)
c = 0
for i in binns[2:]:
if i == "1":
c +=1
print(c)
import sys
n = int(input())
binns = bin(n)
c = 0
for i in binns[2:]:
if i == "1":
c +=1
print(c)
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