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math.combinations

组合数

Compute the exact number of k-element selections from n, bounded to n ≤ 100.

Version 1.0.0确定性数据处理Backend required

使用场景 / Purpose

Math: combinations. 本技能对提供的参数执行计算,输入输出契约如下。文档例子来自已实现函数的固定验收样例;网页本身不执行代码。

输入字段 / Parameters

字段类型要求约束与说明
n"integer"必填 Required{"minimum": 0, "maximum": 100}
k"integer"必填 Required{"minimum": 0, "maximum": 100}

输入例子 / Example input

{
  "n": 5,
  "k": 2
}

预期输出 / Expected output

10
完整输入 JSON Schema
{
  "type": "object",
  "properties": {
    "n": {
      "type": "integer",
      "minimum": 0,
      "maximum": 100
    },
    "k": {
      "type": "integer",
      "minimum": 0,
      "maximum": 100
    }
  },
  "required": [
    "n",
    "k"
  ],
  "additionalProperties": false,
  "maxProperties": 1000
}
完整输出 JSON Schema
{
  "type": "number",
  "minimum": -1e+100,
  "maximum": 1e+100
}