Submission #1103870

#	Time	Username	Problem	Language	Result	Execution time	Memory
1103870		asdfghjk	Combo (IOI18_combo)	C++17	Compilation error	0 ms	0 KiB

combo

#include <bits/stdc++.h>
#define ll long long
#define pb push_back
#define all(x) x.begin(), x.end()
#define F first
#define ld long double
#define S second
using namespace std;
const ll N = 5e3 + 5;
const ll NN = 4e5 + 5;
const ll INF = 1e18;
const ll inf = 1e9;
const ll MOD = 1e9 + 7;
char a[5];
int press(std::string p);
string guess_sequence(int n){
    a[1] = 'A';
    a[2] = 'B';
    a[3] = 'X';
    a[4] = 'Y';
    string s = "";
    int res = 0;
    for(int i = 1;i <= n;i++){
        for(int j = 1;j <= 4;j++){
            s += a[j];
            int val = press(s);
            if(val  > res){
                res = val;
                break;
            }
            s.pop_back();
        }
    }
    return s;
}
main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
//    fflush(stdout);
    ll abd =1;
    cin >>abd;
    for(ll i = 1;i <= abd;i++){
        solve();
    }
}

Compilation message (stderr)

combo.cpp:36:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   36 | main(){
      | ^~~~
combo.cpp: In function 'int main()':
combo.cpp:43:9: error: 'solve' was not declared in this scope
   43 |         solve();
      |         ^~~~~