Viewing other problems with insights similar to only this insight from Codeforces 1146C: Tree Diameter:
When doing a bitmask problem, consider comparing each bit one at a time. When comparing with two numbers, consider the place where the bits first differ by tester
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USACO 2023 January Contest, Gold: Lights Off
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Codeforces 1648C: Tyler and Strings
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- Be careful when multiplying the ways to choose an element (from an array) with a certain value IF previous elements MIGHT have that same value. Consider using a BIT in this case if you can know for sure the number of previous elements with that value. by mathmastersd
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Codeforces 1550B: Maximum Cost Deletion
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- I had learnt a new approach the minm no. of subarrays of 0 in a binary array in loop if(s i-1!=si) sum++; no of subarrays=sum/2 + 1; by darth_raider
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