下列代码的输出结果是( )。int a = 10;int b = 20;void swap(int *p, int *q) {int temp = *p;*p = *q;*q = temp;}int main() {swap(&a, &b);printf("%d %d\n", a, b);retur0;}
·10 20
·20 10
·30 10
·10 30