# NSL-NGR Pattern Questions

- [Nearest Smaller to Right](/dsa-in-python/stack/nsl-ngr-pattern-questions/nearest-smaller-to-right.md)
- [Nearest Smaller to Left](/dsa-in-python/stack/nsl-ngr-pattern-questions/nearest-smaller-to-left.md)
- [Next Greater to Right](/dsa-in-python/stack/nsl-ngr-pattern-questions/next-greater-to-right.md)
- [Next Greater Element II](/dsa-in-python/stack/nsl-ngr-pattern-questions/next-greater-element-ii.md)
- [Daily Temperatures (Leetcode 739)](/dsa-in-python/stack/nsl-ngr-pattern-questions/daily-temperatures-leetcode-739.md)
- [Stock Span Problem](/dsa-in-python/stack/nsl-ngr-pattern-questions/stock-span-problem.md)
- [Largest Rectangle in Histogram](/dsa-in-python/stack/nsl-ngr-pattern-questions/largest-rectangle-in-histogram.md): Learn Nearest Smaller to Left and Nearest Smaller to Right for this
- [Trapping Rain Water](/dsa-in-python/stack/nsl-ngr-pattern-questions/trapping-rain-water.md)
- [Maximal Rectangle](/dsa-in-python/stack/nsl-ngr-pattern-questions/maximal-rectangle.md): Pre requisite: Maximum Area Histogram
