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class BuiltinBitCount
{
public static int popcount(int x)
{
return Integer.bitCount(x);
}
public static int popcountl(long x)
{
return Long.bitCount(x);
}
public static void main(String[] args)
{
if (Integer.bitCount(0) != 0)
throw new Error();
if (Integer.bitCount(8) != 1)
throw new Error();
if (Integer.bitCount(123456) != 6)
throw new Error();
if (Integer.bitCount(-1) != 32)
throw new Error();
if (Long.bitCount(0) != 0)
throw new Error();
if (Long.bitCount(8) != 1)
throw new Error();
if (Long.bitCount(123456) != 6)
throw new Error();
if (Long.bitCount(-1) != 64)
throw new Error();
if (popcount(0) != 0)
throw new Error();
if (popcount(8) != 1)
throw new Error();
if (popcount(123456) != 6)
throw new Error();
if (popcount(-1) != 32)
throw new Error();
if (popcountl(0) != 0)
throw new Error();
if (popcountl(8) != 1)
throw new Error();
if (popcountl(123456) != 6)
throw new Error();
if (popcountl(-1) != 64)
throw new Error();
}
}
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