#include<stdio.h>
#include<stdlib.h>
#include<math.h>

int main(int argc, char * argv[]) {

	float rayon;

	printf("Veuillez indiquer le rayon de votre disque : ");
	scanf("%f", &rayon);

	for (int x = 0; x <= rayon*2; x++) {
		for (int y = 0; y <= rayon*2; y++) {
			double dist = sqrt(pow(x-rayon, 2.0) + pow(y-rayon, 2));

			if (dist <= rayon) printf(" *");
			else printf("  ");
		}
		printf("\n");
	}

	return EXIT_SUCCESS;
}