제출 #750135

#제출 시각아이디문제언어결과실행 시간메모리
750135vjudge1Combo (IOI18_combo)C++17
컴파일 에러
0 ms0 KiB
#include<bits/stdc++.h>
using namespace std;
string guess_sequence(int n)
{
    string ans;
    int x = press("AB");
    if(x == 0){
        int se = press("X");
        if(se == 1) ans += "X";
        else ans += "Y";
    }
    else{
        int se = press("A");
        if(se == 1) ans += "A";
        else ans += "B";
    }
    vector<string> c;
    if(ans != "A") c.push_back("A");
    if(ans != "B") c.push_back("B");
    if(ans != "X") c.push_back("X");
    if(ans != "Y") c.push_back("Y");
    int i = 1;
    while(i < n){
        if(i == n-1){
            int fi = press(ans+"AB");
            if(fi == 0){
                int se = press(ans+"X")-i;
                if(se == 1) ans += "X";
                else ans += "Y";
            }
            else{
                int se = press(ans+"A")-i;
                if(se == 1) ans += "A";
                else ans += "B";
            }
            break;
        }
        int a = press(ans + c[0] + c[0] + ans + c[0] + c[1] + ans + c[1] + c[0])-i;
        if(a == 0){
            ans += c[2];
        }
        else if(a == 1){
            int b = press(ans + c[1] + c[1])-i;
            if(b == 0) ans += c[0] + c[2];
            else if(b == 1) ans += c[1] + c[2];
            else ans += c[1] + c[1];
            i++;
        }
        else{
            int b = press(ans + c[0] + c[0])-i;
            if(b == 0) ans += c[1] + c[0];
            else if(b == 1) ans += c[0] + c[1];
            else ans += c[0] + c[0];
            i++;
        }
        i++;
    }
    return ans;
}

컴파일 시 표준 에러 (stderr) 메시지

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:6:13: error: 'press' was not declared in this scope
    6 |     int x = press("AB");
      |             ^~~~~