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Asked: 2026-05-16T18:31:35+00:00

I have a std::set which is of type point struct point { int x;

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I have a std::set which is of type point

struct point
{
  int x;
  int y;
  int z;
};

Suppose I want to perform three different operation on each variable in set i.e

  • Find the smallest number from x variables.
  • Get missing elements from y variables
    using set difference.
  • Get product of all z variables.

At this point, should i use three predefined alogrithmic functions in sequence or should I write my own alogrithm which would perform all three operations by iterating over the set the once?

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1 Answer

  1. Editorial Team

    Even if you get a ten-fold speed increase, if that piece of code only uses 5% of your application’s time, you’ve just decreased the execution time to 95%. So, unless you know this is a real bottleneck in your application, don’t waste time trying to optimize it. And the only way to know this is through profiling.

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