View Compilation Error

0_0_16522844_9350.cpp: In function 'bool judge(int)':
0_0_16522844_9350.cpp:11:6: error: 'a' was not declared in this scope
   if(a[i]==a[i+1]){
      ^
0_0_16522844_9350.cpp:15:9: error: 'a' was not declared in this scope
   while(a[i]) 
         ^
0_0_16522844_9350.cpp:16:2: error: expected primary-expression before '}' token
  }
  ^
0_0_16522844_9350.cpp: In function 'int main()':
0_0_16522844_9350.cpp:30:3: error: expected primary-expression before '}' token
   } 
   ^