Arithmetic Operators in C

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Following table shows all the arithmetic operators supported by C language. Assume variable A holds 10 and variable B holds 20, then:

OperatorDescriptionExample
+Adds two operands A + B will give 30
-Subtracts second operand from the first A - B will give -10
*Multiplies both operands A * B will give 200
/Divides numerator by de-numerator B / A will give 2
%Modulus Operator and remainder of after an integer division B % A will give 0
++Increments operator increases integer value by one A++ will give 11
--Decrements operator decreases integer value by one A-- will give 9

Example

Try the following example to understand all the arithmetic operators available in C programming language:

#include <stdio.h>

main()
{
   int a = 21;
   int b = 10;
   int c ;

   c = a + b;
   printf("Line 1 - Value of c is %d\n", c );
   c = a - b;
   printf("Line 2 - Value of c is %d\n", c );
   c = a * b;
   printf("Line 3 - Value of c is %d\n", c );
   c = a / b;
   printf("Line 4 - Value of c is %d\n", c );
   c = a % b;
   printf("Line 5 - Value of c is %d\n", c );
   c = a++; 
   printf("Line 6 - Value of c is %d\n", c );
   c = a--; 
   printf("Line 7 - Value of c is %d\n", c );

}

When you compile and execute the above program, it produces the following result:

Line 1 - Value of c is 31
Line 2 - Value of c is 11
Line 3 - Value of c is 210
Line 4 - Value of c is 2
Line 5 - Value of c is 1
Line 6 - Value of c is 21
Line 7 - Value of c is 22


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