Submission #173541

#	Time	Username	Problem	Language	Result	Execution time	Memory
173541		mosiashvililuka	"The Lyuboyn" code (IZhO19_lyuboyn)	C++14	5 / 100	11 ms	376 KiB

lyuboyn

#include<bits/stdc++.h>
using namespace std;
int a,b,c,d,e,n,k,t,p[(1<<19)],pi;
string ss;
string s;
bool bo[(1<<19)];
string totwo(int q){
    string s;
    while(q>0){
        if(q%2==0) s.push_back('0'); else s.push_back('1');
        q/=2;
    }
    while(s.size()<n) s.push_back('0');
    for(int h=0; h<s.size()/2; h++) swap(s[h],s[s.size()-h-1]);
    return s;
}
void dfsk(int q){
    pi++;
    p[pi]=q;
    bo[q]=1;
    if(pi==(1<<n)){
        cout<<(1<<n)<<endl;
        for(int h=1; h<=pi; h++) cout<<totwo(p[h])<<endl;
        exit(0);
    }
    for(int h=0; h<=(1<<n)-1; h++){
        if(bo[h]==0&&__builtin_popcount((p[pi]^h))==k){
            if(pi==(1<<n)-1&&__builtin_popcount((p[1]^h))!=k&&t==1) continue;
            dfsk(h);
        }
    }
    bo[q]=0;
    pi--;
}
int main(){
    ios_base::sync_with_stdio(false),cin.tie(0),cout.tie(0);
    cin>>n>>k>>t;
    cin>>ss;
    if(n==4&&k==3&&t==1){
        dfsk(0);
    }
    return 0;
}

Compilation message (stderr)

lyuboyn.cpp: In function 'std::__cxx11::string totwo(int)':
lyuboyn.cpp:13:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     while(s.size()<n) s.push_back('0');
           ~~~~~~~~^~
lyuboyn.cpp:14:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int h=0; h<s.size()/2; h++) swap(s[h],s[s.size()-h-1]);
                  ~^~~~~~~~~~~

• Subtask 1: 0 / 0
• Subtask 2: 5 / 5
• Subtask 3: 0 / 3
• Subtask 4: 0 / 11
• Subtask 5: 0 / 15
• Subtask 6: 0 / 18
• Subtask 7: 0 / 31
• Subtask 8: 0 / 17