Programming

#include<stdio.h>
int main()
{
	int pos=0,neg=0,zeros=0;
	float num;
	char ans='y';
	while(ans=='y')
	{
		printf("Enter a number : ");
		scanf("%f",&num);
		if(num>0)
		{
			pos++;
		}
		else if(num<0)
		{
			neg++;
		}		
		else
		{
			zeros++;
		}		
		
		printf("Wanna enter another number ? (y/n)\n");
		fflush(stdin);			
		scanf("%c",&ans);			
		if(ans=='n')
		{
		printf("positive number : %d \n Negative numbers : %d \n Zeros : %d",pos,neg,zeros);
		}

	}
return 0;
}

while(ans=='y')
{
        char line[512];
        float val;
        // Quit the loop if the file hits EOF
        if(fgets(line, 512, stdin) == NULL) break;

        // sscanf returns 1 if it reads one value, 2 if it found 2 values, etc.
        if(sscanf(line, "%f", &val) != 1)
        {
                fprintf(stderr, "'%s' is not a number\n", line);
                continue;  // Skip back to top of 'while'
        }

        // Quit the loop if the file hits EOF
        if(fgets(line, 512, stdin) == NULL) break;
        if(sscanf(line, "%c", &ans) != 1)
        {
                fprintf(stderr, "Couldn't read Y/N\n");
                continue;
        }
}