So i(a total beginner) tried to run c file on vs code(mac os). By using magic I somehow accessed terminal(i was using debug console before, and it was pain in …). But now it won’t work properly, it’s just stop after i enter first number
Here the code

#include<stdio.h>
#include<math.h>
int main(void)
{
    double a,b,c;
    printf("enter number a");
    scanf("a=%lfn",&a);
    printf("enter number b");
    scanf("b=%lfn",&b);
    printf("enter number c");
    scanf("c=%lfn",&c);
    double d;
    d=(sqrt(a*b(a+b+c)(a+b-c))/(a+b);
    printf("result=%lfn:",d);
    return 0;
}

Here is output

cd "/Users/roman/Desktop/bob/" && gcc test2.c -o test2 && "/Users/roman/Desktop/bob/"test2
roman@MacBook-Air-Roman ~ % cd "/Users/roman/Desktop/bob/" && gcc test2.c -o test2 && "/Users/roman/Desktop/bob/"test2
enter number a12         #here i enter number
enter number benter number cresult=-0.000000 
:%                                                                                                                                                                                         
roman@MacBook-Air-Roman bob %