09. Labyrinth-9

Codeforces

IDCF92109

Time8000ms

Memory512MB

Difficulty—

English · Original

Chinese · Translation

Formal · Original

See the problem statement here: [http://codeforces.com/contest/921/problem/01](//codeforces.com/contest/921/problem/01). [samples]

请参见问题描述：http://codeforces.com/contest/921/problem/01。 [samples]

**Definitions** Let $ n \in \mathbb{Z}^+ $ be the length of the sequence. Let $ A = (a_1, a_2, \dots, a_n) $ be a sequence of positive integers. **Constraints** $ 1 \leq n \leq 200 $, $ 1 \leq a_i \leq 10^9 $ for all $ i \in \{1, \dots, n\} $. **Objective** Find the maximum number of elements that can be selected from $ A $ such that the sum of the selected elements is odd.

API Response (JSON)

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