18 lines
242 B
C
18 lines
242 B
C
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#include <stdio.h>
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#include <stdint.h>
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_Bool isPowerOfFour(uint32_t n)
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{
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return n != 0 && ((n&(n-1)) == 0) && !(n & 0xAAAAAAAA);
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}
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int main ()
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{
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int32_t a;
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scanf("%d",&a);
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printf("%s", isPowerOfFour(a) ? "YES" : "NO");
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return 0;
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}
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