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bff4ec7 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 | Require Import Coq.ZArith.ZArith.
Require Import Coq.Lists.List.
From AUXLib Require Import ListLib.
From MaxMinLib Require Import MaxMin Interface.
Import ListNotations.
Local Open Scope Z_scope.
Local Open Scope list_scope.
Definition MaxSubarraySumPrefix (l : list Z) (i ans : Z) : Prop :=
max_value_of_subset Z.le
(fun p : Z * Z =>
let '(lo, hi) := p in
0 <= lo /\ lo < hi /\ hi <= i)
(fun p : Z * Z =>
let '(lo, hi) := p in
sum (sublist lo hi l))
ans.
Require Import Coq.micromega.Lia.
Require Import SetsClass.SetsClass.
Import SetsNotation.
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