class Solution {
public int solution(String[] s1, String[] s2) {
int answer = 0;
for(int i = 0; i < s1.length; i++) {
for(int j = 0; j < s2.length; j++) {
if (s1[i].equals(s2[j])) {
answer ++;
}
}
}
return answer;
}
}
Java
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