Programming For Problem Solving Notes Pdf Apr 2026

Source code (.c) → Preprocessor → Compiler → Object code → Linker → Executable (.exe)

Machine (1GL) → Assembly (2GL) → High-level (3GL: C, Python) → 4GL, 5GL.

for loop: for(init; condition; update) while loop: while(condition) do-while loop: do while(condition); → executes at least once. programming for problem solving notes pdf

scanf("%d", &x); // read printf("Value: %d", x); // print Arithmetic: +, -, *, /, % Relational: ==, !=, <, >, <=, >= Logical: && (AND), || (OR), ! (NOT) Assignment: =, +=, -=, etc. Increment/Decrement: ++, -- (prefix/postfix)

int arr[5] = 1,2,3,4,5; arr[0] = 10; // index 0-based Source code (

break (exit loop/switch), continue (skip iteration), goto (jump to label – avoid when possible). 7. Arrays One-dimensional:

struct Student int roll; char name[20]; float marks; ; struct Student s1 = 1, "John", 85.5; same memory shared among members (size = largest member). 12. File Handling Basic operations: Open, Read, Write, Close. (NOT) Assignment: =, +=, -=, etc

#include <stdio.h> // preprocessor directive int main() // main function