A review of k-multiple inversion pairs, starting from a standard inversion-counting template and examining how a changed condition affects query boundaries and…
A review of Luogu P8613, Children Queuing: connecting bubble sort to inversions, using a Fenwick tree to count the inversions involving each element, and exami…
Starting with increasing triples in Luogu P1637 and extending to strictly increasing subsequences of length k in SPOJ INCSEQ, this review develops a general ap…
A review of exact coverage by interval unions. Model two pieces of cloth covering a query interval exactly as an interval-union test, split valid arrangements…