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  1. Practice
  2. Algorithms
  3. Warmup
  4. A Very Big Sum
  5. Discussions

A Very Big Sum

  • k_bazaraly + 1 comment

    This is awesome. Can you hint me where I can read more about operator =>? Googling is not helpful

    • alexmeneses90 + 1 comment

      It's part of the ES6 standard you can check out some documentation and examples here MDN LINK

      • gene68 + 1 comment

        Same in C# LINQ: var sum = arr.Sum(a => (long) a);

        • charlie861i + 0 comments

          You can cut this down evern further, simply

          static long aVeryBigSum(int n, long[] ar) 
 {
    return ar.Sum();
 }