Submission #713577

#	Time	Username	Problem	Language	Result	Execution time	Memory
713577		DennisTran	Combo (IOI18_combo)	C++17	Compilation error	0 ms	0 KiB

combo

#pragma GCC optimize("O2")
#pragma GCC target("avx,avx2,fma")
#include "combo.h"
#include <bits/stdc++.h>
#define FOR(i, a, b) for (int i = (a); i <= (b); i++)
#define FOD(i, a, b) for (int i = (a); i >= (b); i--)
#define REP(i, n) for (int i = 0; i < (n); i++)
#define ALL(x) (x).begin(), (x).end()
#define TIME  (1.0 * clock() / CLOCKS_PER_SEC)
#define file(name)  if (fopen(name".inp", "r")) { freopen(name".inp", "r", stdin); freopen(name".out", "w", stdout); }

using namespace std;

const int MAXN = 2e5 + 5;

int press(string s) {
    cout << s << endl;
    int x; cin >> x;
    return x;
}

string guess_sequence(int N) {
    string t = "";
    FOR(i, 1, N) {
        for (char x : {'A', 'B', 'X', 'Y'}) {
            t += x;
            if (press(t) == i) break;
            t.pop_back();
        }
    }
    return t;
}

Compilation message (stderr)

/usr/bin/ld: /tmp/ccalhOVx.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/cc7NKEyx.o:combo.cpp:(.text+0x0): first defined here
collect2: error: ld returned 1 exit status