Submission #738990

#	Time	Username	Problem	Language	Result	Execution time	Memory
738990		raul2008487	Combo (IOI18_combo)	C++17	Compilation error	0 ms	0 KiB

combo

#include "combo.h"
#include<bits/stdc++.h>
#define pb push_back
string guess_sequence(int N) {
    string s="";
    int cc=1,st;
    ll cs1=press("AB"),cs2=press("AX");
    vector<string> vec;
    if(cs1==2){
        s+="AB";
        vec.pb('B');
        vec.pb('X');
        vec.pb('Y');
    }
    else if(cs2==2){
        s+="AX";
        vec.pb('B');
        vec.pb('X');
        vec.pb('Y');
    }
    else if(cs1==1 && cs2==1){
        s+="AY";
        vec.pb('B');
        vec.pb('X');
        vec.pb('Y');
    }
    else if(cs1==1){
        s+='B';
        vec.pb('A');
        vec.pb('X');
        vec.pb('Y');
    }
    else if(cs2==1){
        s+='X';
        vec.pb('A');
        vec.pb('B');
        vec.pb('Y');
    }
    else{
        s+='Y';
        vec.pb('B');
        vec.pb('X');
        vec.pb('A');
    }
    st=s.size();
    if(st==N){
        return s;
    }
    for(int i=st;i<n-1;i++){
        int query=press(s+v[0]+s+v[1]+v[1]+s+v[1]+v[2]);
        if(query==(i+1)){
            s+=v[0];
        }
        else if(query==(i+2)){
            s+=v[1];
        }
        else{
            s+=v[2];
        }
    }
    if(press(s+v[0])==N){
        return s+v[0];
    }
    else if(press(s+v[1])==N){
        return s+v[1];
    }
    return s+v[2];
}

Compilation message (stderr)

combo.cpp:4:1: error: 'string' does not name a type; did you mean 'stdin'?
    4 | string guess_sequence(int N) {
      | ^~~~~~
      | stdin