Submission #139607

#	Time	Username	Problem	Language	Result	Execution time	Memory
139607		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>

std::string guess_sequence(int N){
std::string s,q,t;
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(std::string p){
}
//int main(){
//	int N; std::cin>>N;
//	guess_sequence(N);
//}

Compilation message (stderr)

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:14:15: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   14 | while(s.size()<N){
      |       ~~~~~~~~^~
combo.cpp:17:1: error: 'm' was not declared in this scope
   17 | m=press(t);
      | ^
combo.cpp: In function 'int press(std::string)':
combo.cpp:24:1: warning: no return statement in function returning non-void [-Wreturn-type]
   24 | }
      | ^