import times, strutils, sequtils, math, algorithm, tables, sets, lists, intsets import critbits, future, strformat, deques template `max=`(x,y) = x = max(x,y) template `min=`(x,y) = x = min(x,y) template `mod=`(x,y) = x = x mod y template scan2 = (scan(), scan()) template scan3 = (scan(), scan()) let read* = iterator: string {.closure.} = while true: (for s in stdin.readLine.split: yield s) proc scan(): int = read().parseInt proc scanf(): float = read().parseFloat proc toInt(c:char): int = return int(c) - int('0') proc solve():int= var n = scan() w = scan() a = newseqwith(n,scan()) left = 0 cum = 0 exists = initHashSet[int]() for right in 0.. w or a[right] in exists): cum-=a[left] exists.excl(a[left]) left+=1 exists.incl(a[right]) cum+=a[right] if cum