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