View Compilation Error

0_0_38487078_21938.cpp: In function 'void into(int, int, int)':
0_0_38487078_21938.cpp:14:13: error: 'a' was not declared in this scope
  int c=find(a);
             ^
0_0_38487078_21938.cpp:15:13: error: 'b' was not declared in this scope
  int d=find(b);
             ^
0_0_38487078_21938.cpp:19:17: error: 'tt' was not declared in this scope
   if(w[a]!=w[b]+tt)
                 ^
0_0_38487078_21938.cpp:20:4: error: 'ans' was not declared in this scope
    ans++;
    ^
0_0_38487078_21938.cpp:25:6: error: invalid types 'int[int]' for array subscript
   w[c]=w[b]+tt-w[a];
      ^
0_0_38487078_21938.cpp:25:13: error: 'tt' was not declared in this scope
   w[c]=w[b]+tt-w[a];
             ^
0_0_38487078_21938.cpp: In function 'int main()':
0_0_38487078_21938.cpp:33:3: error: 'ans' was not declared in this scope
   ans=0;
   ^