lA.count
集合A
45
i++
B[k]==A[l]
j++
32
集合B
int j=0
N
iA.count
9
18
int l=0
Exit
25-60
Y
12
A[i]==B[j]
A[0]:2A[1]:1A[2]:0A[3]:0A[4]:0
l++
kB.count
60
Array
Array.B[k]++
New
int k = 0
开始
Array.A[i]++
int i = 0;
k++
B[0]:2B[1]:1B[2]:0B[3]:0B[4]:0
jB.count