29 lines
828 B
Go
29 lines
828 B
Go
// Copyright 2014 com authors
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License"): you may
|
|
// not use this file except in compliance with the License. You may obtain
|
|
// a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
|
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
|
// License for the specific language governing permissions and limitations
|
|
// under the License.
|
|
|
|
package com
|
|
|
|
// PowInt is int type of math.Pow function.
|
|
func PowInt(x int, y int) int {
|
|
if y <= 0 {
|
|
return 1
|
|
} else {
|
|
if y % 2 == 0 {
|
|
sqrt := PowInt(x, y/2)
|
|
return sqrt * sqrt
|
|
} else {
|
|
return PowInt(x, y-1) * x
|
|
}
|
|
}
|
|
}
|