View Compilation Error

0_0_18285556_11662.cpp: In function 'int isEulr(int)':
0_0_18285556_11662.cpp:27:52: error: 'cnt' was not declared in this scope
  if( (cnt1 == 2 || cnt1 == 0) && cnt2 == 1) return cnt;
                                                    ^
0_0_18285556_11662.cpp: In function 'int main()':
0_0_18285556_11662.cpp:47:9: error: 'k' was not declared in this scope
   if( ( k = isEulr(n) ) >= 0) {
         ^