Arrays & Strings

Array and string questions at Qualcomm sit at the same modest level as the linked-list work. What changes is the limit on memory. Some versions ban the library call you'd normally reach for, or ask you to work in place or keep state in a single integer. Those limits match code that runs on a small core with a fixed buffer.

One of the five looks different. It's an overlap count, meaning how many intervals are open at the busiest moment, and the same count is how you would size a pool of buffers or channels. The other problems work on one buffer, either changed in place or read in a single pass, and the indexes need care. Start with the overlap count below, then work through the rest, tracing each index by hand before you trust the loop.

QualcommPremium lesson · Coding round

The 5 Qualcomm problems are below.

1. 1A Premium questionCoding · Medium
2. 2A Premium questionCoding · Medium
3. 3A Premium questionCoding · Easy

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