problem-solving
2 free lessons tagged problem-solving across Programming, Computer Science. Each one is a short sequence of focused steps with narration and a five-question quiz at the end — take them in any order, no signup required.
Debugging and Problem Solving: What to Do When Code Breaks
Every program breaks, so learn to fix one fast: the three kinds of error, reading a traceback from the bottom up, the beginner errors and their exact messages, print and debugger techniques for logic bugs, tests with assert, and a problem-solving routine plus a way to keep practising.
Which Technique Applies, and How to Tell
A procedure for deciding between greedy, dynamic programming, and neither. Write the recurrence, count the states, attempt the greedy proof, and read the failure. Includes the instance where greedy is optimal and off by a third depending on one word in the problem statement.