Initialisation and assignment

Question

What EXACTLY is the difference between INITIALIZATION and ASSIGNMENT ?

PS : If possible please give examples in C and C++ , specifically .

Actually , I was

Answer 1

Initialisation: giving an object an initial value:

int a(0);
int b = 2;
int c = a;
int d(c);
std::vector e;

Assignment: assigning a new value to an object:

a = b;
b = 5;
c = a;
d = 2;