Submission #636395

#	Time	Username	Problem	Language	Result	Execution time	Memory
636395		Son	Combo (IOI18_combo)	C++14	Compilation error	0 ms	0 KiB

combo

string guessing( int n ){
    string ans = "";
    for ( int i = 1; i <= n; i++ ){
        string t = ans + "A";
        if ( press(t) == i ) {
            ans += "A";
            continue;
        }

        t = ans + "B";
        if ( press(t) == i ){
            ans += "B";
            continue;
        }

        t = ans + "X";
        if ( press(t) == i ){
            ans += "X";
            continue;
        }

        ans += "Y";
    }
    return (ans);
}

Compilation message (stderr)

combo.cpp:2:1: error: 'string' does not name a type
    2 | string guessing( int n ){
      | ^~~~~~