Submission #1226756

#	Time	Username	Problem	Language	Result	Execution time	Memory
1226756		fauntleroy	Combo (IOI18_combo)	C++20	Compilation error	0 ms	0 KiB

combo

#include <iostream>
#include <cstdio>
#include <vector>
#include <array>
#include <string>
#include <algorithm>
#include <numeric>
#include <map>
#include <unordered_map>
#include <set>
#include <unordered_set>
#include <queue>
#include <cmath>
#include <climits>
#include <iomanip>
#include <limits>
#include <tuple>
#include <stack>
#include <bitset>
#include <cstring>
#include <sstream>
#include <functional>
#include <random>
#include "combo.h"
#define int long long
using namespace std;

string guess_sequence(int n) {
    string ans;
    for (int i = 0; i < n; ++i) {
        if (press(ans + "A"))
            ans.push_back('A');
        if (press(ans + "B"))
            ans.push_back('B');
        if (press(ans + "X"))
            ans.push_back('X');
        if (press(ans + "Y"))
            ans.push_back('Y');
    }
}

Compilation message (stderr)

combo.cpp: In function 'std::string guess_sequence(long long int)':
combo.cpp:40:1: warning: no return statement in function returning non-void [-Wreturn-type]
   40 | }
      | ^
/usr/bin/ld: /tmp/ccbkpLGT.o: in function `main':
grader.cpp:(.text.startup+0x4c): undefined reference to `guess_sequence[abi:cxx11](int)'
collect2: error: ld returned 1 exit status