제출 #636405

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
636405		Son	콤보 (IOI18_combo)	C++14	0 / 100	1 ms	208 KiB

combo

#include <bits/stdc++.h>
#include "combo.h"
using namespace std;

string guess_sequence( int N ){

    vector < char > V;
    V.push_back('A');
    V.push_back('B');
    V.push_back('Y');
    V.push_back('X');

    string ans = "";
    int ab = press("AB");
    if ( ab == 2 ){
        ans = "AB";
    } else if ( ab == 1 ){
        ab = press("A");
        if ( ab == 1 ) ans = "A";
        else ans = "B";
    } else {
        int xy = press("XY");
        if ( xy == 2 ){
            ans = "XY";
        } else if ( xy == 1 ) {
            xy = press("X");
            if ( xy == 1 ) ans = "X";
            else ans = "Y";
        } else {
            assert(1==2);
        }
    }

    int ch;
    vector < char > W;
    for ( int i = 0; i < 4; i++ ){
        if ( V[i] == ans[0] ){
            ch = i;
        } else {
            W.push_back(V[i]);
        }
    }
    while ( (int)(ans.size()) < N ){
        int prevN = (int)(ans.size());
        string t = ans + W[0] + "" + W[1];
        int p = press(t);
        if ( p == prevN + 2 ){
            ans += W[0];
            ans += W[1];
        } else if ( p == prevN + 1 ){
            ans += W[0];
        } else if ( p == prevN ) {
            ans += W[2];
        } else {
            assert(1==2);
        }
    }
    return ans;
}

컴파일 시 표준 에러 (stderr) 메시지

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:34:9: warning: variable 'ch' set but not used [-Wunused-but-set-variable]
   34 |     int ch;
      |         ^~

• Subtask 1: 0 / 5
• Subtask 2: 0 / 95