Main.cc:3:5: error: cannot declare ‘::main’ to be a global variable
int main {
^~~~
Main.cc:4:5: error: expected primary-expression before ‘float’
float s=0;
^~~~~
Main.cc:4:5: error: expected ‘}’ before ‘float’
Main.cc:8:5: error: expected unqualified-id before ‘while’
while(e>=pow(10,-6))
^~~~~
Main.cc:15:5: error: ‘cout’ does not name a type
cout <