不知道是那里错了。。。。程序可以运行，但是运算却出现错误，大侠帮我瞧瞧




#include <stdio.h>
#include <math.h>
void main()
{
    int f_a=0;
    int f_b=0;
    int f_c=0;
    int f_delta=0;
    int f_x1=0;
    int f_x2=0;
    int f_p=0;
    int f_q=0;

    printf("\n**********************************************************");
    printf("\n*             This program is wrote by Brilly            *");
    printf("\n*                        ax2+bx+c=0                      *");
    printf("\n**********************************************************");
    printf("\n\n");
    printf("请输入a的值:");
    scanf("%f",&f_a);
    printf("请输入b的值:");
    scanf("%f",&f_b);
    printf("请输入c的值:");
    scanf("%f",&f_c);
    printf("\n该方程是:%.2fx2+%.2fX+%.2f=0",f_a,f_b,f_c);
    f_delta=f_b*f_b - 4* f_a * f_c;
    f_p = - f_b/(2*f_a);
    f_q = sqrt ( f_delta ) / ( 2 * f_a );
    f_x1 = f_p + f_q;
    f_x2 = f_p - f_q;
    printf("\n根是:\nx1=%.2f\nx2=%.2f\n",f_x1,f_x2);
}

int f_a=0;
    int f_b=0;
    int f_c=0;
    int f_delta=0;
    int f_x1=0;
    int f_x2=0;
    int f_p=0;
    int f_q=0;
改为：
float f_a=0,f_b=0,f_c=0,f_delta=0,f_x1=0,f_x2=0,f_p=0,f_q=0;

#include <stdio.h>
#include <math.h>
#include <stdlib.h>
void main()
{
    float f_a=0;
    float f_b=0;
    float f_c=0;
    float f_delta=0;
    float f_x1=0;
    float f_x2=0;
    float f_p=0;
    float f_q=0;

    printf("\n**********************************************************");
    printf("\n*             This program is wrote by Brilly            *");
    printf("\n*                        ax2+bx+c=0                      *");
    printf("\n**********************************************************");
    printf("\n\n");
    printf("input a:");
    scanf("%f",&f_a);
    printf("input b:");
    scanf("%f",&f_b);
    printf("input c:");
    scanf("%f",&f_c);
    printf("\n%.2fx2+%.2fX+%.2f=0",f_a,f_b,f_c);
    f_delta=f_b*f_b - 4* f_a * f_c;
    f_p = - f_b/(2*f_a);
    f_q = sqrt ( f_delta ) / ( 2 * f_a );
    f_x1 = f_p + f_q;
    f_x2 = f_p - f_q;
    printf("\nfoots:\nx1=%.2f\nx2=%.2f\n",f_x1,f_x2);
    system("pause");
}


对比程序和图好好看看错在哪,另外你的这个求根程序很不完善，例如判断f_a与0的关系，f_delta与0的关系，还有复数根等等

谢谢楼上的2位大哥了