Submission #1243010

#	Time	Username	Problem	Language	Result	Execution time	Memory
1243010		Circling	Combo (IOI18_combo)	C++20	Compilation error	0 ms	0 KiB

combo

#include <iostream>
#include <iomanip>
#include <utility>
#include <vector>
#include <set>
#include <map>
#include <queue>
#include <stack>
#include <algorithm>
#include <cmath>
#include <cstdint>
using namespace std;

int press(string p){
}


string guess_sequence(int n){
    string ans, comb, c1, c2, c3;
    char first;
    if (press("AB") > 0) first = "BA"[press("A")];
    else first = "XY"[press("Y")];
    c1 = "AB"[first < 'B'];
    c2 = "BX"[first < 'X'];
    c3 = "XY"[first < 'Y'];
    ans += first;
    comb = c1 + c2 + c3;
    for (int i = 1; i < n - 1; i++) ans += comb[press(ans + c2 + ans + c3 + c1 + ans + c3 + c2 + ans + c3 + c3) - i];
    if (press(ans + c1) == n) return ans + c1;
    else if (press(ans + c2) == n) return ans + c2;
    else return ans + c3;
}


int main(){
}

Compilation message (stderr)

combo.cpp: In function 'int press(std::string)':
combo.cpp:15:1: warning: no return statement in function returning non-void [-Wreturn-type]
   15 | }
      | ^
/usr/bin/ld: /tmp/cceo31Fl.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/ccdjJlbI.o:combo.cpp:(.text.unlikely+0x0): first defined here
/usr/bin/ld: /tmp/cceo31Fl.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/ccdjJlbI.o:combo.cpp:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status