g0001_0100.s0007_reverse_integer.solution.go Maven / Gradle / Ivy

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104 LeetCode algorithm problem solutions

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package s0007_reverse_integer

// #Medium #Top_Interview_Questions #Math #Udemy_Integers
// #2024_03_07_Time_0_ms_(100.00%)_Space_2.2_MB_(46.99%)

import "math"

func reverse(x int) int {
	var r int
	for ok := true; ok; ok = x != 0 {
		if r > math.MaxInt32/10 || r < math.MinInt32/10 {
			return 0
		}
		r = (x % 10) + (r * 10)
		x /= 10
	}
	return r
}