i solved a problem on code forces and this is my code

- #include <bits/stdc++.h>
- using namespace std;

- int main() {

- double a,b,c;
- cin>>a,b,c;
- double delta= b
*b - 4*a*c; - if(a,delta!=0)
- {
- double mot=(-b + (double)sqrt(delta))/(2*a);
- double sach=(-b - (double)sqrt(delta))/(2*a);
- if(mot>sach)
- {
- cout <<(-b + (double)sqrt(delta))/(2
*a)<<(-b - (double)sqrt(delta))/(2*a); - }
- else
- {
- cout << (-b - (double)sqrt(delta))/(2
*a) << (-b + (double)sqrt(delta))/(2*a); - }
- }
- else
- {
- cout<<"nhap a khac 0 ";
- }
- return 0;
- }

but my code is not run and report this

Can't compile file: program.c:1:25: fatal error: bits/stdc++.h: No such file or directory compilation terminated.