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
https://www.nowcoder.com/practice/440f16e490a0404786865e99c6ad91c9
#include <iostream> #include <string> #include <bitset> using namespace std; int main(){ int n; cin>>n; bitset<32> bit(n); string binary = bit.to_string(); int count = 0; for(char i : binary){ if(i=='1'){ count++; } } cout<<count; }