1.下列何者無法達成 C/C++語言裡的 swap(int a, int b)效果?
(A) a ^= b, b ^= a, a ^= b;
(B) a = a + b, b = a – b, a = a – b;
(C) c = a, a = b, b = c;
(D) a = a * b, b = a % b, a = a % b;
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統計: A(18), B(8), C(10), D(21), E(0) #2914386
統計: A(18), B(8), C(10), D(21), E(0) #2914386