find-if-digit-game-can-be-won

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Algorithms

You are given an array of positive integers <code>nums</code>.

Alice and Bob are playing a game. In the game, Alice can choose either all single-digit numbers or all double-digit numbers from <code>nums</code>, and the rest of the numbers are given to Bob. Alice wins if the sum of her numbers is strictly greater than the sum of Bob&#39;s numbers.

Return <code>true</code> if Alice can win this game, otherwise, return <code>false</code>.

&nbsp;
Example 1:

<div class="example-block">
Input: nums = [1,2,3,4,10]

Output: false

Explanation:

Alice cannot win by choosing either single-digit or double-digit numbers.
</div>

Example 2:

<div class="example-block">
Input: nums = [1,2,3,4,5,14]

Output: true

Explanation:

Alice can win by choosing single-digit numbers which have a sum equal to 15.
</div>

Example 3:

<div class="example-block">
Input: nums = [5,5,5,25]

Output: true

Explanation:

Alice can win by choosing double-digit numbers which have a sum equal to 25.
</div>

&nbsp;
Constraints:

<ul>
	<li><code>1 &lt;= nums.length &lt;= 100</code></li>
	<li><code>1 &lt;= nums[i] &lt;= 99</code></li>
</ul>

canAliceWin

Find if Digit Game Can Be Won

Find Numbers with Even Number of Digits

find-numbers-with-even-number-of-digits

统计位数为偶数的数字

Count Integers With Even Digit Sum

count-integers-with-even-digit-sum

统计各位数字之和为偶数的整数个数

Array

Math

给你一个 正整数 数组 <code>nums</code>。

Alice 和 Bob 正在玩游戏。在游戏中，Alice 可以从 <code>nums</code> 中选择所有个位数 或 所有两位数，剩余的数字归 Bob 所有。如果 Alice 所选数字之和 严格大于 Bob 的数字之和，则 Alice 获胜。

如果 Alice 能赢得这场游戏，返回 <code>true</code>；否则，返回 <code>false</code>。

&nbsp;

示例 1：

<div class="example-block">
输入：nums = [1,2,3,4,10]

输出：false

解释：

Alice&nbsp;不管选个位数还是两位数都无法赢得比赛。
</div>

示例 2：

<div class="example-block">
输入：nums = [1,2,3,4,5,14]

输出：true

解释：

Alice&nbsp;选择个位数可以赢得比赛，所选数字之和为 15。
</div>

示例 3：

<div class="example-block">
输入：nums = [5,5,5,25]

输出：true

解释：

Alice&nbsp;选择两位数可以赢得比赛，所选数字之和为 25。
</div>

&nbsp;

提示：

<ul>
	<li><code>1 &lt;= nums.length &lt;= 100</code></li>
	<li><code>1 &lt;= nums[i] &lt;= 99</code></li>
</ul>