View Compilation Error

0_0_32493673_32408.cpp: In function 'int main()':
0_0_32493673_32408.cpp:39:16: error: 'c1' was not declared in this scope
             if(c1<=c2)
                ^
0_0_32493673_32408.cpp:39:20: error: 'c2' was not declared in this scope
             if(c1<=c2)
                    ^