能帮我看看这个程序哪错了吗，实在不懂我的错误在哪，谢谢大家了
#include <stdio.h>
#include <math.h>
int main(){
    float a,b,c,disc,x1,x2,p,q;
    printf("请输入二元一次方程的三个系数：");
    scanf("%d%d%d",&a,&b,&c);
    if(a==0){
        printf("二元一次方程的a不能为0")；
        return;
    }
    disc=b*b-4*a*c;
    if(disc<0){
        printf("该二元一次方程无解")；
        return;
    }
    p=-b/(2*a);
    q=sqrt(disc)/(2*a);
    x1=p+q;
    x2=p-q;
    printf("x1=%f\nx2=%f",x1,x2);
}

这个是我编译器里面的报错
总共三个错误
float 声明的时候应该用 %f 好像
第八行和第十三行最后的分号是中文分号
if 语句不需要 return，return 用在 void 里
改过的代码没有具体调试

Untitled.cpp:6:17: warning: format specifies type 'int *' but the argument has type 'float *' [-Wformat]
        scanf("%d%d%d",&a,&b,&c);
               ~~      ^~
               %f
Untitled.cpp:6:20: warning: format specifies type 'int *' but the argument has type 'float *' [-Wformat]
        scanf("%d%d%d",&a,&b,&c);
                 ~~       ^~
                 %f
Untitled.cpp:6:23: warning: format specifies type 'int *' but the argument has type 'float *' [-Wformat]
        scanf("%d%d%d",&a,&b,&c);
                   ~~        ^~
                   %f
Untitled.cpp:8:45: error: non-ASCII characters are not allowed outside of literals and identifiers
                printf("二元一次方程的a不能为0")；
                                                ^~
Untitled.cpp:8:45: error: expected ';' after expression
                printf("二元一次方程的a不能为0")；
                                                ^
                                                ;
Untitled.cpp:9:3: error: non-void function 'main' should return a value [-Wreturn-type]
                return;
                ^
Untitled.cpp:13:40: error: non-ASCII characters are not allowed outside of literals and identifiers
                printf("该二元一次方程无解")；
                                            ^~
Untitled.cpp:13:40: error: expected ';' after expression
                printf("该二元一次方程无解")；
                                            ^
                                            ;
Untitled.cpp:14:3: error: non-void function 'main' should return a value [-Wreturn-type]
                return;
                ^
3 warnings and 6 errors generated.

#include <stdio.h>
#include <math.h>
int main(){
    float a,b,c,disc,x1,x2,p,q;
    printf("请输入二元一次方程的三个系数：");
    scanf("%f%f%f",&a,&b,&c);
    if(a==0){
        printf("二元一次方程的a不能为0");
    }
    disc=b*b-4*a*c;
    if(disc<0){
        printf("该二元一次方程无解");
    }
    p=-b/(2*a);
    q=sqrt(disc)/(2*a);
    x1=p+q;
    x2=p-q;
    printf("x1=%f\nx2=%f",x1,x2);
}

[此贴子已经被作者于2017-12-5 14:25编辑过]

真的万分感谢！