com.github.steveash.jg2p.util.Fibonacci Maven / Gradle / Ivy
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/*
* Copyright 2015 Steve Ash
*
* 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.github.steveash.jg2p.util;
/**
* @author Steve Ash
*/
public class Fibonacci {
public static int prevFibNumber(int probe) {
int a = 0;
int b = 1;
while (true) {
if (probe < b) {
return a;
}
int c = a + b;
a = b;
b = c;
}
}
}