#include<iostream> using namespace std; int main(){ int a,i; i=0; cin>>a; while(a) { if(a%2==0) {a=a/2;} else{a=a/2;i++;} } cout<<i; }
#include<iostream> using namespace std; int main(){ int a,i; i=0; cin>>a; while(a) { if(a%2==0) {a=a/2;} else{a=a/2;i++;} } cout<<i; }