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<?php
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function is_Power_of_two($n)
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{
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if(($n & ($n - 1)) == 0)
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{
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return "$n is power of 2";
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}
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else
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{
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return "$n is not power of 2";
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}
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}
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print_r(is_Power_of_two(4)."\n");
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print_r(is_Power_of_two(36)."\n");
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print_r(is_Power_of_two(16)."\n");
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?>
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