Submission #110012

#	Time	Username	Problem	Language	Result	Execution time	Memory
110012		mefbayar	Combo (IOI18_combo)	C++17	Compilation error	0 ms	0 KiB

combo

#include "combo.h"
#include <bits/stdc++.h>
using namespace std;
string s;
char c[4];
string guess_sequence(int N){
	int k;
	if(press("AB")){
		if(press("A")){
			c[0]="B";
			c[1]="X";
			c[2]="Y";
			s="A";
		}else{
			c[0]="A";
			c[1]="X";
			c[2]="Y";
			s="B";
		}
	}else{
		if(press("X")){
			c[0]="B";
			c[1]="A";
			c[2]="Y";
			s="X";
		}else{
			c[0]="A";
			c[1]="X";
			c[2]="B";
			s="Y";
		}
	}
	if(N==1) return s;
	for(int i = 2; i < N; i++){
		k = press(s + c[0]  + c[1] + s + c[0] + c[0] + s + c[0] + c[2] + s + c[1]); 
		if(k == i + 1){
			s += c[0];
		} else if(k == i){
			s += c[1];
		} else {
			s += c[2];
		}
	}
	if(press(s + c[0]) == N){
		s += c[0];
	} else {
		if(press(s + c[1]) == N){
			s += c[1];
		} else {
			s += c[2];
		}
	}
	return s;
}

Compilation message (stderr)

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:10:9: error: invalid conversion from 'const char*' to 'char' [-fpermissive]
   10 |    c[0]="B";
      |         ^~~
      |         |
      |         const char*
combo.cpp:11:9: error: invalid conversion from 'const char*' to 'char' [-fpermissive]
   11 |    c[1]="X";
      |         ^~~
      |         |
      |         const char*
combo.cpp:12:9: error: invalid conversion from 'const char*' to 'char' [-fpermissive]
   12 |    c[2]="Y";
      |         ^~~
      |         |
      |         const char*
combo.cpp:15:9: error: invalid conversion from 'const char*' to 'char' [-fpermissive]
   15 |    c[0]="A";
      |         ^~~
      |         |
      |         const char*
combo.cpp:16:9: error: invalid conversion from 'const char*' to 'char' [-fpermissive]
   16 |    c[1]="X";
      |         ^~~
      |         |
      |         const char*
combo.cpp:17:9: error: invalid conversion from 'const char*' to 'char' [-fpermissive]
   17 |    c[2]="Y";
      |         ^~~
      |         |
      |         const char*
combo.cpp:22:9: error: invalid conversion from 'const char*' to 'char' [-fpermissive]
   22 |    c[0]="B";
      |         ^~~
      |         |
      |         const char*
combo.cpp:23:9: error: invalid conversion from 'const char*' to 'char' [-fpermissive]
   23 |    c[1]="A";
      |         ^~~
      |         |
      |         const char*
combo.cpp:24:9: error: invalid conversion from 'const char*' to 'char' [-fpermissive]
   24 |    c[2]="Y";
      |         ^~~
      |         |
      |         const char*
combo.cpp:27:9: error: invalid conversion from 'const char*' to 'char' [-fpermissive]
   27 |    c[0]="A";
      |         ^~~
      |         |
      |         const char*
combo.cpp:28:9: error: invalid conversion from 'const char*' to 'char' [-fpermissive]
   28 |    c[1]="X";
      |         ^~~
      |         |
      |         const char*
combo.cpp:29:9: error: invalid conversion from 'const char*' to 'char' [-fpermissive]
   29 |    c[2]="B";
      |         ^~~
      |         |
      |         const char*