Aug 13, 2026 · 15 min · 6 segments
Nested loops are one of the most powerful tools in programming, but also one of the most dangerous in terms of performance. A nested loop is simply a loop placed inside another loop. You already know…
Nested loops are one of the most powerful tools in programming, but also one of the most dangerous in terms of performance.
A nested loop is simply a loop placed inside another loop.
You already know how to write a single loop, the while and for loops from the previous chapters.
Now you will learn to combine them and, just as importantly, to write them efficiently.
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Nested loops are one of the most powerful tools in programming, but also one of the most dangerous in terms of performance.
A nested loop is simply a loop placed inside another loop.
You already know how to write a single loop, the while and for loops from the previous chapters.
Now you will learn to combine them and, just as importantly, to write them efficiently.
