View Compilation Error

0_0_38925533_11961.cpp: In function 'int main()':
0_0_38925533_11961.cpp:19:20: error: 'c1' was not declared in this scope
   19 |                 if(c1==0&&c2<=0){
      |                    ^~
0_0_38925533_11961.cpp:19:27: error: 'c2' was not declared in this scope
   19 |                 if(c1==0&&c2<=0){
      |                           ^~