Can you remove the errors please!!

Question

#include <iostream>
using namespace std;
int main()
int a=10;
int b=9;
if(a>b)
{
cout<<"a is greater than b";
}else{
cout<<"a is lesser than b";
}

Answer 1

Main function braces missing...
proper way writing in main function :

int main()
{
//your instructions write here
..
}

Answer 2

Even tho people informed you enough to be able to solve it on your own ,still read on what is main function , program when executed calls the main function which includes all the logic of your app and functions that you want to run

https://www.sololearn.com/learn/CPlusPlus/1602/