2.5 basic training to find integer

2.5 basic training to find integer

#include<stdio.h>
int main()
{
	int n,num[100],num1,i,flag=0;
	scanf("%d",&n);
	for(i=0;i<n;i++)
	{
		scanf("%d",&num[i]);
	}
	scanf("%d",&num1);
	for(i=0;i<n;i++)
	{
		if(num[i]==num1)
		{
			flag=1;
			break;
		}
	}
	if(flag==0)
		printf("-1\n");
	else
		printf("%d\n",i+1);
	return 0;
}