DSA Sheet 2026

Step-by-step FAANG prep. Track progress, save notes, and crush your interviews.

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Phase 0.1: Variables, I/O & Conditionals

Master these problems to clear phase 0.1: variables, i/o & conditionals interviews easily.

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Problem	Difficulty	Pattern
Swap Two Numbers GeeksforGeeks	Easy	Variables & Temporary States
Check Even or Odd GeeksforGeeks	Easy	Modulo Operator (%)
Find Maximum of Three Numbers GeeksforGeeks	Easy	Nested if-else Logic
Leap Year Checker GeeksforGeeks	Easy	Multiple Logical Operators (&&, \|\|)
Simple Calculator GeeksforGeeks	Easy	switch Case Statements