加法:
carry = 進(jìn)位 = AND
xor = remains.
減法:
The~operator flipsallthe bits; the1s (4 of them) become0s, and the0s (N-4 of them) become1s
乘法:遞歸
加法:
carry = 進(jìn)位 = AND
xor = remains.
減法:
The~operator flipsallthe bits; the1s (4 of them) become0s, and the0s (N-4 of them) become1s
乘法:遞歸