Submission #648088

#	Time	Username	Problem	Language	Result	Execution time	Memory
648088		Kenpar	Combo (IOI18_combo)	C++17	Compilation error	0 ms	0 KiB

combo

//OJUZ grind baby

#include <bits/stdc++.h>
#include <combo.h>
using namespace std;
#define ll long long

char word[] = {'A', 'B', 'X', 'Y'};

string nextPermutation(string p, int N){
	if(p.length() == N){
		return ((press(p) == N)?p:"");
	}else{
		string ans = "";
		for(int i = 0; i < 4; i++){
			string temp = p + word[i];

			temp = nextPermutation(temp, N);

			if(temp.length() > ans.length()){
				ans = temp;
			}
		}

		return ans;
	}
}


string guess_sentence(int N){
	return nextPermutation("", N);
}

int main(){
	int n;
	cin>>n;

	cout<<guess_sentence(n)<<endl;
}

Compilation message (stderr)

combo.cpp: In function 'std::string nextPermutation(std::string, int)':
combo.cpp:11:16: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   11 |  if(p.length() == N){
      |     ~~~~~~~~~~~^~~~
/usr/bin/ld: /tmp/ccBAYfDs.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/cc2rOxbp.o:combo.cpp:(.text.startup+0x0): first defined here
/usr/bin/ld: /tmp/ccBAYfDs.o: in function `main':
grader.cpp:(.text.startup+0x4c): undefined reference to `guess_sequence[abi:cxx11](int)'
collect2: error: ld returned 1 exit status