# Expressions in C

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**Expressions in C** are combinations of **variables**, **constants**, **operators**, and** function calls** that evaluate to a single value.

They are fundamental building blocks in C programming used for performing **computations**, **manipulating data**, and** evaluating conditions**.

Understanding expressions is crucial for** writing effective** and** efficient C code**.

**Example:
**

// Program for Expressions in C #include<stdio.h>int main() { int a = 10, b = 20, result; // Binary Expression result = a + b * 2; // (a + (b * 2)) // Unary Expression result = -result; // Unary Minus printf("Result: %d\n", result); // Output: Result: -50 return 0; }

**Output:
**

Result: -50

**Types of Expressions in C **

1**Primary Expressions:
**

**Constants:** 10, 'A', 3.14

**Variables: **a, b, result

**Function Calls: **printf(), scanf()

2**Unary Expressions:
**

**Unary Operator Expression:** !a, -result, ++b

**Primary Expression:** (a), (result)

3**Binary Expressions:
**

**Binary Operator Expression:** a + b, a * b, a == b

**Unary Expression:** -result, ++a

Understanding expressions and their types is essential for writing C code that performs **complex computations**, **manipulates data efficiently**, and **evaluates conditions** **accurately**.

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