Submission #138247

#	Time	Username	Problem	Language	Result	Execution time	Memory
138247		degelo	Combo (IOI18_combo)	C++17	0 / 100	2 ms	220 KiB

combo

#include<bits/stdc++.h>
#include "combo.h"
using namespace std;
string st;
int np[2006];
/*int press(string n){
    int i=0;
    while(n[i]==st[i]){
        i++;
    }
    return i;
}*/
string guess_sequence(int n){
    string a[4];
    string s;
    int first;
    bool achou=false;

    a[0]="A",a[1]="B",a[2]="X",a[3]="Y";
    for(int i=0;i<3;i++){
        int prox;
        if(i==1||i==0) prox=1-i;
        else prox=5-i;
        if(!achou){
            int t=press(a[i]+a[prox]);
            if(t==1){
                achou=true;
                first=i;
                s+=a[i];
                np[2]=prox;
            }
            if(t==2){
                achou=true;
                s+=a[i];s+=a[prox];
                first=i;
            }
        }
    }
    if(!achou){
        s+=a[3];
        first=3;
    }
    int p1,p2;
    if(first==0||first==3){
        p1=1;
        p2=2;
    }
    else {
        p1=0;
        p2=3;
    }
    achou=false;
    for(int i=s.size();i<n;i++){
        int npode=1;
        for(int j=0;j<4;j++){
            if(!achou&&npode!=3&&j!=first){
                if(np[i]==j){
                    npode++;
                    continue;
                }
                int prox;
                if(p1==i) prox=p2;
                else prox=p1;
                int t=press(s+a[j]+a[prox]);
                if(t==s.size()+1){
                    np[s.size()+1]=prox;
                    s+=a[j];
                    achou=true;
                }
                else if(t==s.size()+2){
                    i++;
                    s+=a[j];s+=a[prox];
                    achou=true;
                }
                else npode++;
            }
            else if(npode==3&&i!=first&&!achou){
                s+=a[j];
                achou=true;
            }
        }
        achou=false;
    }
    return s;
}
/*int main()
{
    cin>>st;
    cout<<guess_sequence(st.size());



}*/

Compilation message (stderr)

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:65:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   65 |                 if(t==s.size()+1){
      |                    ~^~~~~~~~~~~~
combo.cpp:70:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   70 |                 else if(t==s.size()+2){
      |                         ~^~~~~~~~~~~~

• Subtask 1: 0 / 5
• Subtask 2: 0 / 95