Submission #383091

#	Time	Username	Problem	Language	Result	Execution time	Memory
383091		Christopher_Rdz	Combo (IOI18_combo)	C++17	Compilation error	0 ms	0 KiB

combo

#include <bits/stdc++.h>
#include "combo.h"

using namespace std;

string guess_sequence(int n){
    char ini;
    if (press("AB") != 0){
        if (press("A") == 1){
            ini = 'A';
        }else{
            ini = 'B';
        }
    }else{
        if (press("X") == 1){
            ini = 'X';
        }else{
            ini = 'Y';
        }
    }
    string l;
    if (ini == 'A') l = "BXY";
    if (ini == 'B') l = "AXY";
    if (ini == 'X') l = "ABY";
    if (ini == 'Y') l = "ABX";
    string s = ini;
    int p = 1;
    int ans;
    for (int i = 2; i <= (n - 1); i++){
        ans = press(s + l[0] + l[0] + s + l[0] + l[1] + s + l[0] + l[2] + s + l[1]);
        if ((ans - p) == 0) s += l[2];
        if ((ans - p) == 1) s += l[1];
        if ((ans - p) == 0) s += l[0];
        p++;
    }
    if (press(s + l[0]) == n){
        s += l[0];
    }else{
        if (press(s + l[1]) == n){
            s += l[1];
        }else{
            s += l[2];
        }
    }
    return s;
}

Compilation message (stderr)

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:26:16: error: conversion from 'char' to non-scalar type 'std::string' {aka 'std::__cxx11::basic_string<char>'} requested
   26 |     string s = ini;
      |                ^~~