Hi Frends, Give me a program that can be written C but not in C++?

Answer 1

Probably not one. Sometimes, embedded systems use C over C++ but they can be written using both.

Answer 2

hai *

Constructs valid in C but not C++
One commonly encountered differences is that C allows a void* pointer to be assigned to any pointer type without a cast, whereas C++ does not; this idiom appears often in C code using malloc memory allocation. For example, the following is valid in C but not C++:

void* ptr;
int *i = ptr; /* Implicit conversion from void* to int* */
or similarly:

int *j = malloc(sizeof(int) * 5); /* Implicit conversion from void* to int* */
good luck

Answer 3

I can't think of any because C++ contains everything C does plus more.