View Compilation Error

0_0_23275120_12685.cpp: In function 'int main()':
0_0_23275120_12685.cpp:17:16: error: expected ';' before 'cout'
   else(sum==0) cout<<"0.00"<<endl;
                ^
0_0_23275120_12685.cpp:18:3: error: 'else' without a previous 'if'
   else
   ^