What happened to my code I don't know

Question

#include<stdio.h>
int sum(int a,int b);
void printstar(int n){

for (int i=0;i<n,i++){

printf ("%c",'*');

}

}

int main()
{

int a,b,c;
a=9;
b=10;
c=sum(a,b);
printstar (7);
//printf ("The sum is %d\n",c);

}
int sum (int a,int b);
{
return a+b;
}

Answer 1

Remove the ; on the sum function

Answer 2

What is the objective of the code? What is it doing wrong?
Without this info, it's impossible to help.

Answer 3

It's still not fixed

Answer 4

#include<stdio.h>
int sum(int a,int b);

void printstar(int n){

for (int i=0;i<n;i++){ //see semicolon missing, instead you added camma
printf ("%c",'*');
}
}

int main()
{
int a,b,c;
a=9;
b=10;
c=sum(a,b);
printstar(7);
printf ("\nThe sum is %d\n",c);

}

int sum (int a,int b) //; remove colon
{
return a+b;
}

//what the program purpose? Does it working as needed ?