Submission #670602

#	Time	Username	Problem	Language	Result	Execution time	Memory
670602		AlphaMale06	콤보 (IOI18_combo)	C++17	Compilation error	0 ms	0 KiB

combo

#include <bits/stdc++.h>

using namespace std;
int press(string p){
	int q;
	cin >> q;
	return q;
}

string guess_sequence(int n){
	char prvo_slovo;
	int x = press("AB");
	if(x==0){
		x=press("X");
		if(x==1){
			prvo_slovo='X';
		}
		else prvo_slovo='Y';
	}
	else{
		x=press("A");
		if(x==1){
			prvo_slovo='A';
		}
		else prvo_slovo='B';
	}
	string pitaj="";
	pitaj+=prvo_slovo;
	char ne_prva[3];
	if(prvo_slovo=='A'){
		ne_prva[0]='B';
		ne_prva[1]='X';
		ne_prva[2]='Y';
	}
	else if(prvo_slovo=='B'){
		ne_prva[0]='A';
		ne_prva[1]='X';
		ne_prva[2]='Y';
	}
	else if(prvo_slovo=='X'){
		ne_prva[0]='A';
		ne_prva[1]='B';
		ne_prva[2]='Y';
	}
	else if(prvo_slovo=='Y'){
		ne_prva[0]='A';
		ne_prva[1]='B';
		ne_prva[2]='X';
	}
	while(pitaj.size()<n){
		x=press(pitaj+ne_prva[0]);
		if(x==pitaj.size()+1){
			pitaj+=ne_prva[0];
		}
		else{
			x=press(pitaj+ne_prva[1]);
			if(x==pitaj.size()+1){
				pitaj+=ne_prva[1];
			}
			else pitaj+=ne_prva[2];
		}
	}
	return pitaj;
}

Compilation message (stderr)

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:50:20: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   50 |  while(pitaj.size()<n){
      |        ~~~~~~~~~~~~^~
combo.cpp:52:7: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   52 |   if(x==pitaj.size()+1){
      |      ~^~~~~~~~~~~~~~~~
combo.cpp:57:8: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   57 |    if(x==pitaj.size()+1){
      |       ~^~~~~~~~~~~~~~~~
/usr/bin/ld: /tmp/ccj7JBz1.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/ccQUWq2Y.o:combo.cpp:(.text+0xc0): first defined here
collect2: error: ld returned 1 exit status