Submission #945519

#	Time	Username	Problem	Language	Result	Execution time	Memory
945519		dugersuren	Snake (CEOI08_snake)	C++14	Compilation error	0 ms	0 KiB

snake

#include "snakelib.h"
#include<bits/stdc++.h>
using namespace std;
int K;
char a1, a2;
int main(){
	int l,r,minLen,maxLen,mid1,mid2
    K=get_speed();
    minLen=1;maxLen=12122;
    l=0;r=12122;    
    for(int i=1;i<=13;++i){
		mid1 = l + (r-l)/3;
		mid2=r - (r-l)/3;
		ask_snake(mid1,mid2,&a1,&a2);
        if(a1=='f'){
        	if(a2=='f') maxLen=mid2-l,r=mid2+K-1;
        	if(a2=='s')minLen=mid2-mid1+2,maxLen=mid2-l,r=mid2+K;
        	if(a2=='b')minLen=mid2-mid1+3,r+=K;        	
		}
		if(a1=='s'){
			if(a2=='s'){
				tell_length(minLen=r-l+1);
				
				return 0;
			}
			l=mid1;
			if(a2=='f')maxLen=mid2-l,r=mid2+K-1;
			if(a2=='b')maxLen=r-mid1+1,r=mid2+K;
			
		}
		if(a1=='b'){
			l=mid1+1;
			if(a2=='f')maxLen=mid2-mid1-1,r=mid2+K-1;
        	if(a2=='s')maxLen=mid2-mid1,r=mid2+k,r=mid2+K;
        	if(a2=='b')minLen=r-mid1+1,r+=K;  
		}
    }
    int guess=(maxLen+minLen)/2;
    tell_length(guess);
    return 0;
}

Compilation message (stderr)

snake.cpp: In function 'int main()':
snake.cpp:8:5: error: expected initializer before 'K'
    8 |     K=get_speed();
      |     ^
snake.cpp:13:3: error: 'mid2' was not declared in this scope; did you mean 'mid1'?
   13 |   mid2=r - (r-l)/3;
      |   ^~~~
      |   mid1
snake.cpp:34:45: error: 'k' was not declared in this scope
   34 |          if(a2=='s')maxLen=mid2-mid1,r=mid2+k,r=mid2+K;
      |                                             ^