제출 #1305837

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1305837		fafnir	콤보 (IOI18_combo)	C++20	컴파일 에러	0 ms	0 KiB

combo

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

#define REP(i, n) for (int i = 0; i < (n); i++)

#define LOCAL 0

#ifdef LOCAL
int press(string s);
#endif


const int M = 4;
const char ABC[] = "ABXY";

string guess_sequence(int N) {
    string s;
    int len[M];

    REP(i, N) {
        bool found = false;

        REP(j, M-1) {
            len[j] = press(s + ABC[j]);
        
            if (len[j] == i+1) {
                s += ABC[j];
                found = true;
                break;
            }
        }

        if (!found) {
            s += ABC[M-1];
        }
    }
    
    return s;
}

#ifdef LOCAL

string SECRET = "ABXYYB";

int press(string p) {
    const int m = p.length();
    const int n = SECRET.length();
    int lpref = 0;

    REP(i, m) {
    
        int j = 0;
        while (j < n && i+j < m && SECRET[j] == p[i+j]) {j++;}

        lpref = max(lpref, j);
    }

    return lpref;
}

int main() {
    cout << guess_sequence(SECRET.length()) << '\n';    
}

#endif

컴파일 시 표준 에러 (stderr) 메시지

/usr/bin/ld: /tmp/ccLZhcYD.o: in function `press(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >)':
grader.cpp:(.text+0x0): multiple definition of `press(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >)'; /tmp/cczvl0HV.o:combo.cpp:(.text+0x0): first defined here
/usr/bin/ld: /tmp/ccLZhcYD.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/cczvl0HV.o:combo.cpp:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status