All pastes #751394 Raw Edit

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#751394 ·published 2007-10-27 10:51 UTC
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/* rovnice.c */

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

int main(void) {
	int a, b, c, d;
	double x, y, z;
	printf("Zadejte koeficienty a, b, c kvadraticke rovnice: \n");
    scanf("%d%d%d", &a, &b, &c);
    d = b*b - 4*a*c;
    z = sqrt((double)d);
    if (d < 0) 
    printf("Rovnice nema v oboru realnych cisel reseni.\n");
    if (d == 0)
    x = ((-b)/2*a);
    printf("Resenim rovnice je dvojnasobny koren x = %d\n", x);
    if (d > 0)
    x = (-b+z)/2*a;
    y = (-b-z)/2*a;
    printf("Resenim rovnice jsou dva koreny x1 = %d a x2 = %d\n", x, y);
    system("PAUSE");
    return 0;
}