View Compilation Error

0_0_36507484_16941.cpp: In function 'int main()':
0_0_36507484_16941.cpp:16:3: error: 'cnt1' was not declared in this scope
   cnt1[j]=0;
   ^
0_0_36507484_16941.cpp:23:2: error: 'cnt1' was not declared in this scope
  cnt1[s[0]-'a']++;
  ^