Chapter 1 Code.pdf

C Language Tutorial (Basic to Advanced) Topics to be covered : Installation + Setup Chapter 1 - Variables, Data types + Input/Output Chapter 2 - Instructions & Operators Chapter 3 - Conditional Statements Chapter 4 - Loop Control Statements Chapter 5 - Functions...

C Language Tutorial (Basic to Advanced) Topics to be covered : Installation + Setup Chapter 1 - Variables, Data types + Input/Output Chapter 2 - Instructions & Operators Chapter 3 - Conditional Statements Chapter 4 - Loop Control Statements Chapter 5 - Functions & Recursion Chapter 6 - Pointers Chapter 7 - Arrays Chapter 8 - Strings Chapter 9 - Structures Chapter 10 - File I/O Chapter 11 - Dynamic Memory Allocation Variables, Data Types + Input/Output (Chapter 1) V 1. First Program #include int main() { printf("Hello World"); return 0; } 2. Variables & Data Types + Constants & Keywords #include int main() { int number; int age; int price; return 0; }  #include int main() { int age = 22; float pi = 3.14; char percentage = '%'; return 0; } 3. Comments #include //This program prints Hello World int main() { printf("Hello World"); return 0; } 4. Output #include int main() { int age = 22; float pi = 3.14; char percentage = '%'; printf("age is %d", age); printf("age is %f", pi); printf("age is %c", percentage); return 0; } 5. Input (Sum of 2 numbers) #include int main() { int a, b; printf("enter a \n"); scanf("%d", &a); printf("enter b \n");  scanf("%d", &b); printf("sum of a & b is : %d \n", a+b); return 0; } 6. Practice Qs 1 (Area of Square) #include //area of square int main() { int side; scanf("%d", &side); printf("%d", side * side); return 0; } 7. Practice Qs 2 (Area of Circle) #include //area of square int main() { float radius; scanf("%f", &radius); printf("%f", 3.14 * radius * radius); return 0; }