View Compilation Error

0_0_13096930_18443.cpp: In function 'int main()':
0_0_13096930_18443.cpp:8:24: error: expected ')' before ';' token
 #define emp 0.000000001;
                        ^
0_0_13096930_18443.cpp:20:25: note: in expansion of macro 'emp'
         if(fabs(s1-s2)<=emp)
                         ^
0_0_13096930_18443.cpp:20:28: error: expected primary-expression before ')' token
         if(fabs(s1-s2)<=emp)
                            ^
0_0_13096930_18443.cpp:22:9: error: 'else' without a previous 'if'
         else if(s1>s2)
         ^