Submission #139610

#	Time	Username	Problem	Language	Result	Execution time	Memory
139610		Bazarkuly2003	Combo (IOI18_combo)	C++14	Compilation error	0 ms	0 KiB

combo

#include "combo.h"
#include<string>
#include<bits/stdc++.h>
#include <cstdio>
#include <cstdlib>
#include <algorithm>
using namespace std;
string guess_sequence(int N){
string s,q,t;
int m;
if(press("A")==1){s="A";q="BXY";}else
if(press("B")==1){s="B";q="AXY";}else
if(press("X")==1){s="X";q="ABY";}else{s="Y";q="ABX";}

while(s.size()<N){
t=s+q[0]+q[0]+s+q[0]+q[1]+s+q[0]+q[2]+s+q[1];

m=press(t);
if(m==s.size()+0)s+=q[2];else
if(m==s.size()+1)s+=q[1];else 
if(m==s.size()+2)s+=q[0];}
 return s;
}
int press(string p){
}
//int main(){
//	int N; cin>>N;
//	guess_sequence(N);
//}

Compilation message (stderr)

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:15:15: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   15 | while(s.size()<N){
      |       ~~~~~~~~^~
combo.cpp:19:5: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   19 | if(m==s.size()+0)s+=q[2];else
      |    ~^~~~~~~~~~~~
combo.cpp:20:5: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   20 | if(m==s.size()+1)s+=q[1];else
      |    ~^~~~~~~~~~~~
combo.cpp:21:5: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   21 | if(m==s.size()+2)s+=q[0];}
      |    ~^~~~~~~~~~~~
combo.cpp: In function 'int press(std::string)':
combo.cpp:25:1: warning: no return statement in function returning non-void [-Wreturn-type]
   25 | }
      | ^
/usr/bin/ld: /tmp/cco1bXpN.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/ccy9ZmcK.o:combo.cpp:(.text.unlikely+0x0): first defined here
collect2: error: ld returned 1 exit status