View Compilation Error

0_0_30114306_10430.cpp:4:1: error: 'LL' does not name a type
 LL a[maxn],b[maxn];
 ^
0_0_30114306_10430.cpp: In function 'int main()':
0_0_30114306_10430.cpp:12:35: error: 'a' was not declared in this scope
   for(int i = 0;i < s.size();i++) a[i]=b[i]=0;
                                   ^
0_0_30114306_10430.cpp:12:40: error: 'b' was not declared in this scope
   for(int i = 0;i < s.size();i++) a[i]=b[i]=0;
                                        ^
0_0_30114306_10430.cpp:14:5: error: 'a' was not declared in this scope
     a[0] = 0;
     ^
0_0_30114306_10430.cpp:31:13: error: 'b' was not declared in this scope
    if(a[i]) b[i] = 1;
             ^
0_0_30114306_10430.cpp:32:10: error: 'b' was not declared in this scope
    if(i) b[i] += b[i-1];
          ^
0_0_30114306_10430.cpp:56:13: error: 'b' was not declared in this scope
      ans += b[x-1];
             ^
0_0_30114306_10430.cpp:63:22: error: 'b' was not declared in this scope
    ans += s.size()-1+b[s.size()-1]; 
                      ^