题解 | #求int型正整数在内存中存储时1的个数#
求int型正整数在内存中存储时1的个数
http://www.nowcoder.com/practice/440f16e490a0404786865e99c6ad91c9
位运算 嵌入式拿手啦
include<bits/stdc++.h> using namespace std;
int main(void) { int num; int ox = 0x00000001; int count = 0; while(cin>>num) { if(num == 0) cout<<"0"<<endl; while(num >=0x01) { count += num&ox; num>>=1; } cout<<count<<endl; } }
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