## C Programming  

### Basic Syntax  
- Comments  
```c  
 // This is a single-line comment  
  
 /* This is a  
    multi-line comment */  
```  
  
- Variables  
```c  
// Declaration and initialization  
int x = 10;  
  
// Declaration without initialization  
float y;  
```  

- Data Types  

| Data | Type | Description|  
|  --- | --- | --- |  
| int | Integer | |  
| float | Floating point number | |  
| double | Double precision floating point number | |  
| char | Character | |  
| bool | Boolean | |  

- Operators  

| Operator | Description | |   
|  --- | --- | --- |  
| = | Assignment | |  
| + | Addition| |  
| - | Subtraction| |  
| * | Multiplication| |  
| / | Division| |  
| % | Modulus| (remainder after division) |  
| == | Equality| |  
| != | Inequality| |  
| < | Less than| |  
| > | Greater than| |  
| <= | Less than or equal to| |  
| >= | Greater than or equal to| |  
| && | Logical AND| |  
| \|\| | | |  
| ! | Logical NOT| |  
  
- - -  
  
##### Control Structures  
- Conditional Statements  
```c  
if (condition) {  
    // code block to execute if condition is true  
} else if (anotherCondition) {  
    // code block to execute if anotherCondition is true  
} else {  
    // code block to execute if neither condition is true  
}  
```  
- Switch Statements  
```c  
switch (expression) {  
    case value1:  
        // code block to execute if expression equals value1  
            break;  
              case value2:  
                  // code block to execute if expression equals value2  
                      break;  
                        default:  
                            // code block to execute if expression does not equal any specified value  
                                break;  
}  
```  
  
- - -  
  
##### Loops  
- For Loop  
```c  
for (initialization; condition; update) {  
    // code block to execute repeatedly while condition is true  
}  
```  
  
- While Loop  
```c  
while (condition) {  
    // code block to execute repeatedly while condition is true  
}  
```  
  
- Do-While Loop  
```c  
do {  
    // code block to execute at least once  
} while (condition);  
```  
  
- - -  
  
##### Functions  
```c  
// Function prototype  
returnType functionName(argumentType argumentName);  
  
// Function definition  
returnType functionName(argumentType argumentName) {  
    // code block to execute  
      return returnValue;  
}  
```  
  
- - -  
  
##### Arrays  
```c  
// Declaration and initialization  
int arrayName[size] = {value1, value2, value3};  
  
// Accessing elements  
int element = arrayName[index];  
```  
  
- - -  
  
##### Pointers  
```c  
// Declaration and initialization  
int *pointerName = &variableName;  
  
// Accessing value through pointer  
int value = *pointerName;`  
```