View Compilation Error

0_0_38845550_15216.cpp:4:5: error: cannot declare '::main' to be a global variable
    4 | int main{
      |     ^~~~
0_0_38845550_15216.cpp:5:5: error: expected primary-expression before 'int'
    5 |     int a,b;
      |     ^~~
0_0_38845550_15216.cpp:5:5: error: expected '}' before 'int'
0_0_38845550_15216.cpp:4:9: note: to match this '{'
    4 | int main{
      |         ^
0_0_38845550_15216.cpp:6:5: error: 'cin' does not name a type
    6 |     cin>>a>>b;
      |     ^~~
0_0_38845550_15216.cpp:7:5: error: 'cout' does not name a type
    7 |     cout<<a+b<<endl;
      |     ^~~~
0_0_38845550_15216.cpp:8:5: error: expected unqualified-id before 'return'
    8 |     return 0;
      |     ^~~~~~
0_0_38845550_15216.cpp:10:1: error: expected declaration before '}' token
   10 | }
      | ^