Submission #222429

#	Time	Username	Problem	Language	Result	Execution time	Memory
222429		dwsc	Popcount (COCI19_popcount)	C++14	0 / 110	5 ms	384 KiB

popcount

#include <bits/stdc++.h>
using namespace std;
string checkbit(int i){
    return "((A&(1<<"+to_string(i)+"))>>"+to_string(i)+")";
}
string bitshift(int i){
    return "(1<<"+to_string(i)+")";
}
string getmaxint(int n){
    return "((1<<"+to_string(n)+")-1)";
}
int f1(int a,int i){
    return ((a&(1<<i))>>i);
}
int f2(int i){
    return (1<<i);
}
int f3(int i){
    return ((1<<i)-1);
}
int main(){
    int n,k;
    cin >> n >> k;
    //for (int a = 0; a <(1<<n); a++){
    //    int temp = a;
        if (k*4 >= n){
            //cout << (n+3)/4 << "\n";
            for (int i = 0; i < n; i+= 4){
                string add = checkbit(i),sub="("+getmaxint(n)+"-"+bitshift(i)+")";
                //int val = f1(a,i),val2 = f3(n)-f2(i);
                for (int j = i+1; j < min(i+4,n); j++){
                    add = "("+add+"+"+checkbit(j)+")";
                    sub = "("+sub+"-"+bitshift(j)+")";
                   // val += f1(a,j);
                   // val2 -= f2(j);
                }
                //val2 = temp&val2;
                //temp = (val+val2);
                sub = "(A&"+sub+")";
                string finalString = "A=("+add+"+"+sub+")";
                cout << finalString << "\n";
            }
        }
       // if(temp != (__builtin_popcount(a))) cout << a << " " << temp << "\n";
       // else cout << temp << "\n";
   // }
}

• Subtask 1: 0 / 15
• Subtask 2: 0 / 15
• Subtask 3: 0 / 35
• Subtask 4: 0 / 45