Stuff

#include <math.h>#include <stdlib.h>#include <stdio.h>int main () {    int a,b,c,ag;    float x1,x2,d;    char again[0];    printf("deseja executar o programa baskara? [1]: ");    scanf("%d", &ag);    while(ag) {    system("cls");    printf("informe os valores para  A,B,C\n");    printf("A ");    scanf("%d", &a);    printf("B ");    scanf("%d", &b);    printf("C ");    scanf("%d", &c);    d =  pow(b, 2) - 4 * a * c;    printf("\n * [delta]  %d^2-4*%d*%d=%f\n", b,a,c,d);    if (d<0) {             printf(" * nao e possivel calcular uma raiz negativa (delta) \n\n", d);             } else {                    x1 = (-b + sqrt(d)) / (2 * a);                    x2 = (-b - sqrt(d)) / (2 * a);                    printf(" * [x1] %d=(%f^(1/2))/(2*%d)\n", x1,b,d,a);                    printf(" * [x2] %d=(%f^(1/2))/(2*%d)\n\n", x2,b,d,a);                    if (x1 == x2) {                                   printf(" * as duas raizes sao maiores que zero e reais\n");                                    }                    }    printf("deseja executar novamente? [1]: ");    scanf("%d", &ag);}    system("pause");    return 0;}