Submission #75958

#	Time	Username	Problem	Language	Result	Execution time	Memory
75958		someone_aa	Combo (IOI18_combo)	C++17	Compilation error	0 ms	0 KiB

combo

//#include "combo.h"
#include <bits/stdc++.h>
#define pb push_back
using namespace std;

int press(string a) {
    int answ;
    cin>>answ;
    return answ;
}

std::string guess_sequence(int N) {
    std::string p = "";

    if(press("AB") >= 1) {
        if(press("A") == 1) p += "A";
        else p += "B";
    }
    else {
        if(press("X") == 1) p += "X";
        else p += "Y";
    }

    vector<char> letters;
    if(p[0] != 'A') letters.pb('A');
    if(p[0] != 'B') letters.pb('B');
    if(p[0] != 'X') letters.pb('X');
    if(p[0] != 'Y') letters.pb('Y');

    for(int i=2;i<=N;i++) {
        if(i < N) {
            string temp = p + letters[0] + letters[0];
            string temp2 = p + letters[0] + letters[1];
            string temp3 = p + letters[0] + letters[2];
            string temp4 = p + letters[1];

            string t = temp + temp2 + temp3 + temp4;
            int x = press(t);
            if(x == i) p += letters[1];
            else if(x > i) p += letters[0];
            else p += letters[2];
        }
        else {
            if(press(p + letters[0]) == N) p += letters[0];
            else if(press(p + letters[1]) == N) p += letters[1];
            else p += letters[2];
        }
    }
    return p;
}

Compilation message (stderr)

/usr/bin/ld: /tmp/ccCSWJRL.o: in function `press(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >)':
grader.cpp:(.text+0x0): multiple definition of `press(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >)'; /tmp/ccD0rCoK.o:combo.cpp:(.text+0xc0): first defined here
collect2: error: ld returned 1 exit status