Submission #477950

#	Time	Username	Problem	Language	Result	Execution time	Memory
477950		omohamadooo	Combo (IOI18_combo)	C++14	Compilation error	0 ms	0 KiB

combo

/*
      ___           ___           ___           ___           ___           ___           ___          _____          ___           ___           ___
     /  /\         /__/\         /  /\         /__/\         /  /\         /__/\         /  /\        /  /::\        /  /\         /  /\         /  /\
    /  /::\       |  |::\       /  /::\        \  \:\       /  /::\       |  |::\       /  /::\      /  /:/\:\      /  /::\       /  /::\       /  /::\
   /  /:/\:\      |  |:|:\     /  /:/\:\        \__\:\     /  /:/\:\      |  |:|:\     /  /:/\:\    /  /:/  \:\    /  /:/\:\     /  /:/\:\     /  /:/\:\
  /  /:/  \:\   __|__|:|\:\   /  /:/  \:\   ___ /  /::\   /  /:/~/::\   __|__|:|\:\   /  /:/~/::\  /__/:/ \__\:|  /  /:/  \:\   /  /:/  \:\   /  /:/  \:\
 /__/:/ \__\:\ /__/::::| \:\ /__/:/ \__\:\ /__/\  /:/\:\ /__/:/ /:/\:\ /__/::::| \:\ /__/:/ /:/\:\ \  \:\ /  /:/ /__/:/ \__\:\ /__/:/ \__\:\ /__/:/ \__\:\
 \  \:\ /  /:/ \  \:\~~\__\/ \  \:\ /  /:/ \  \:\/:/__\/ \  \:\/:/__\/ \  \:\~~\__\/ \  \:\/:/__\/  \  \:\  /:/  \  \:\ /  /:/ \  \:\ /  /:/ \  \:\ /  /:/
  \  \:\  /:/   \  \:\        \  \:\  /:/   \  \::/       \  \::/       \  \:\        \  \::/        \  \:\/:/    \  \:\  /:/   \  \:\  /:/   \  \:\  /:/
   \  \:\/:/     \  \:\        \  \:\/:/     \  \:\        \  \:\        \  \:\        \  \:\         \  \::/      \  \:\/:/     \  \:\/:/     \  \:\/:/
    \  \::/       \  \:\        \  \::/       \  \:\        \  \:\        \  \:\        \  \:\         \__\/        \  \::/       \  \::/       \  \::/
     \__\/         \__\/         \__\/         \__\/         \__\/         \__\/         \__\/                       \__\/         \__\/         \__\/

*/

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#define ll long long
#define pb push_back
#define endl '\n'
#define pii pair<ll,ll >
#define F first
#define S second
#define ld long double

using namespace std;
using namespace __gnu_pbds;

typedef tree<ll , null_type , less_equal<ll> ,rb_tree_tag ,tree_order_statistics_node_update >ordered_set;

const int MOD=1e9+7;
const int  N=3e5+7;

long long po(ll x,ll y)
{
    ll ans=1;
    while(y){
        if(y & 1) ans=(ans*x);//%MOD;
        y/=2;
        x=(x*x);//%MOD;
    }
    return ans;
}

string guess_sequence(int n)
{
    string s;
    int no=-1;
    char a[4]={'a','b','x','y'};
    for(ll i=1;i<=n;i++){
        bool f=0;
        for(ll j=0;j<3;j++){
            if(j==no) continue;
            if(prees(s+a[j]) == i){
                f=1;
                if(i==1) no=j;
                s+=a[j];
                break;
            }
        }
        if(!f) s+=a[3];
    }
    return s;
}

void solve()
{
    cout<<guess_sequence(6);
}

/*
int main()
{
   // ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
    //freopen(".in","r",stdin);freopen("timeline.out","w",stdout);
    int t=1;
    //cin>>t;
    while(t--) solve();
    return 0;
}
*/

Compilation message (stderr)

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:55:16: error: 'prees' was not declared in this scope
   55 |             if(prees(s+a[j]) == i){
      |                ^~~~~