//this is program to satisfy the given condition on a question here we check all conditions
#include<stdio.h>
// these are the proto types of a,b,c,d,e,f functions
void b();
void c();
void f();
void a();
void d();
void e();
int main() {
printf(“output are:given Input example: a c f n”);
b();//here a() is a calling function
c();//here b() is a calling function
f();//here f is calling function
//here if you want to cal any function you just write here like this in main method b();,d();,e();
}
void a()//here a() is a called function
{
printf(“at”);
}
void b()//here b() is a called function
{
a();//here a() is calling function it can call the a() called function
printf(“bt”);
}
void c()//here c() is a called function
{
a();//here a() is calling function it can call the a() called function
printf(“ct”);
}
void d()//here d() is a called function
{
printf(“dt”);
}
void e()//here e() is a called function
{
d();//here d() is calling function it can call the d() called function
printf(“et”);
}
void f()//here f() is a called function
{
e();//here e() is calling function it can call the e() called function
printf(“f”);
}
/*output
output are:given Input example: a c f
a a c d e f
*/
//screen shots code and output:

//output
