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Assignment Operators are used to assign a value of an expression or a value of a variable to another variable. The most commonly used assignment operator is "=". There are two different Assignment Operators are available in C 1.Compound Assignment, 2.Multiple Assignment.

Syntax

variable = expression (or) value;
The '=' operator is the simple Assignment operator. Example:
#include<stdio.h>
int main()
{
int x; // Declaration of a variable
x=5;   // Assignment Operator
printf("x=%d",x);
return 0;
}

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Compound Assignment

Compound Assignment Operator is to assign a value to a variable in order to assign a new value to a variable after performing a specifed operation.
  Operator     Example     Meaning  
+ = X + = Y X = X + Y
- = X - = Y X = X - Y
* = X * = Y X = X * Y
/ = X / = Y X = X / Y
% = X % = Y X = X % Y
#include<stdio.h>
int main()
{
int x=5,y=5; // Declaration of a variable
x+=y;   // Compound Assignment X = X + Y
printf("x=%d",x);
return 0;
}

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Multiple Assignment

Using Multiple Assignment we can assign a single value or an expression to multiple variables. Example:
#include<stdio.h>
int main()
{
int x,y,z=5; // Declaration of a variable
x=y=z;   // Multiple Assignment X=Y=Z(5)
printf("x=%d,y=%d,z=%d",x,y,z);
return 0;
}
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