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g0001_0100.s0029_divide_two_integers.readme.md Maven / Gradle / Ivy

29\. Divide Two Integers

Medium

Given two integers `dividend` and `divisor`, divide two integers **without** using multiplication, division, and mod operator.

The integer division should truncate toward zero, which means losing its fractional part. For example, `8.345` would be truncated to `8`, and `-2.7335` would be truncated to `-2`.

Return _the **quotient** after dividing_ `dividend` _by_ `divisor`.

**Note:** Assume we are dealing with an environment that could only store integers within the **32-bit** signed integer range: [−231, 231 − 1]. For this problem, if the quotient is **strictly greater than** [231 − 1], then return [231 − 1], and if the quotient is **strictly less than** [-231 − 1], then return [-231 − 1].

**Example 1:**

**Input:** dividend = 10, divisor = 3

**Output:** 3

**Explanation:** 10/3 = 3.33333.. which is truncated to 3. 

**Example 2:**

**Input:** dividend = 7, divisor = -3

**Output:** -2

**Explanation:** 7/-3 = -2.33333.. which is truncated to -2. 

**Example 3:**

**Input:** dividend = 0, divisor = 1

**Output:** 0 

**Example 4:**

**Input:** dividend = 1, divisor = 1

**Output:** 1 

**Constraints:**

*   -231 <= dividend, divisor <= 231 - 1
*   `divisor != 0`