Submission #1226753

#	Time	Username	Problem	Language	Result	Execution time	Memory
1226753		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>
#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:30:13: error: 'press' was not declared in this scope
   30 |         if (press(ans + "A"))
      |             ^~~~~
combo.cpp:32:13: error: 'press' was not declared in this scope
   32 |         if (press(ans + "B"))
      |             ^~~~~
combo.cpp:34:13: error: 'press' was not declared in this scope
   34 |         if (press(ans + "X"))
      |             ^~~~~
combo.cpp:36:13: error: 'press' was not declared in this scope
   36 |         if (press(ans + "Y"))
      |             ^~~~~
combo.cpp:39:1: warning: no return statement in function returning non-void [-Wreturn-type]
   39 | }
      | ^