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36 lines
641 B
36 lines
641 B
/*
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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public class ArrayCost {
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// expected: Theta(mag.length)
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private void ArrayCost(int[] mag) {
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int i = 0;
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int k = mag.length;
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while (i < k) {
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i++;
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}
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}
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// expected: ~31
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private static boolean isPowOfTwo_FP(int value) {
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int ones = 0;
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int v = value;
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for (int shifts = 0; shifts < 31 && ones <= 1; shifts++) {
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if ((v & 1) == 1) {
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ones++;
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}
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v >>= 1;
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}
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return ones == 1;
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}
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}
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