Help me in solving PATTER1 problem

help
,
1

My issue

chech my code

My code

#include <stdio.h>

int main() {
	int n,j,i,num;
	scanf("%d",&n);
	for(j=1;j<=2*i-1;j++)
	{
	if(j%2==0)
	
	printf("*");
	else
	{
	    printf("%d",num);
	    num++;
	    
	}

}
printf("\n");

return 0;
}

Problem Link: pattern type-1 Practice Coding Problem