Submission #130113

#	Time	Username	Problem	Language	Result	Execution time	Memory
130113		HungAnhGoldIBO2020	Combo (IOI18_combo)	C++14	Compilation error	0 ms	0 KiB

combo

#include<iostream>
using namespace std;
char ohyeah[]={'X','Y','A','B'};
int press(string p){
}
string guess_sequence(int N){
	string cac="";
	int i,j;
	for(i=0;i<N;i++){
		for(j=0;j<4;j++){
			if(i!=0&&cac[0]==ohyeah[j]){
				continue;
			}
			if(press(cac+ohyeah[j])==i+1){
				cac+=ohyeah[j];
				break;
			}
		}
	}
	return cac;
}

Compilation message (stderr)

combo.cpp: In function 'int press(std::string)':
combo.cpp:5:1: warning: no return statement in function returning non-void [-Wreturn-type]
    5 | }
      | ^
/usr/bin/ld: /tmp/ccK5hTqZ.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/ccRw6Y4Z.o:combo.cpp:(.text.unlikely+0x0): first defined here
collect2: error: ld returned 1 exit status