Submission #636984

#	Time	Username	Problem	Language	Result	Execution time	Memory
636984		bonk	콤보 (IOI18_combo)	C++14	Compilation error	0 ms	0 KiB

combo

string guess_sequence(int n){
    char fi = ' ';
    if(press("A")) fi = 'A';
    else if(press("B")) fi = 'B';
    else if(press("X")) fi = 'X';
    else fi = 'Y';

    string ans = "";
    ans += fi;
    int len = 1;

    while(len < n){
        if(fi != 'A' && (press(ans + 'A')) == len + 1) ans += 'A';
        else if(fi != 'B' && (press(ans + 'B')) == len + 1) ans += 'B';
        else if(fi != 'X' && (press(ans + 'X')) == len + 1) ans += 'X';
        else ans += 'Y';
        len++;
    }

    return ans;
}

int main(){
    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
    int n; cin >> n;
    cout << guess_sequence(n) << '\n';

    return 0;
}

Compilation message (stderr)

combo.cpp:1:1: error: 'string' does not name a type
    1 | string guess_sequence(int n){
      | ^~~~~~
combo.cpp: In function 'int main()':
combo.cpp:24:5: error: 'ios_base' has not been declared
   24 |     ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
      |     ^~~~~~~~
combo.cpp:24:35: error: 'cin' was not declared in this scope
   24 |     ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
      |                                   ^~~
combo.cpp:24:47: error: 'cout' was not declared in this scope
   24 |     ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
      |                                               ^~~~
combo.cpp:26:13: error: 'guess_sequence' was not declared in this scope
   26 |     cout << guess_sequence(n) << '\n';
      |             ^~~~~~~~~~~~~~