Why should we mention 'int' before main() function ? What is the use of it?

Answer 1

You can also write
void main () here void represent void will not return any value and int main represent that it will return int value .

Answer 2

It tells that the function would return an integer value when called.

Answer 3

Int is. A datatype
Int main is main function which can u write an return value
Int main (){
return 0;
}

Answer 4

Got..it Thanks.