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Original file line number Diff line number Diff line change
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import java.util.*;

class Solution {
public int solution(int[] queue1, int[] queue2) {
int answer = 0;

Queue<Integer> q1 = new ArrayDeque<>();
Queue<Integer> q2 = new ArrayDeque<>();

for(int i = 0; i < queue1.length; i++) {
q1.offer(queue1[i]);
}

for(int i = 0; i < queue2.length; i++) {
q2.offer(queue2[i]);
}

long sum1 = sum(q1);
long sum2 = sum(q2);
long target = (sum1 + sum2) / 2;
int size = q1.size() * 3;

for(int i = 0; i < size; i++) {
if(sum1 < sum2) {
long ele = q2.poll();
q1.offer((int)ele);
sum1 += ele;
sum2 -= ele;
answer++;
}
else if (sum1 > sum2) {
long ele = q1.poll();
q2.offer((int)ele);
sum1 -= ele;
sum2 += ele;
answer++;
}
else return answer;
}

return -1;
}

public long sum(Queue<Integer> q) {
long sum = 0;
for(int ele : q) sum += ele;
return sum;
}
}