Link https://www.codechef.com/ALCM2019/problems/ALC006 Best I was able to do was Mo's algorithm + heap of frequency of elements. I wasn' t able to optimize better than this.
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Link https://www.codechef.com/ALCM2019/problems/ALC006 Best I was able to do was Mo's algorithm + heap of frequency of elements. I wasn' t able to optimize better than this.