765. Couples Holding Hands

765. Couples Holding Hands.java

class Solution {
    public int minSwapsCouples(int[] row) {
        
        int num = 0, temp = 0, cnt=0;
        for (int i=0;i<row.length;i++) {
            num=row[i]%2==0?row[i]+1:row[i]-1;
            if (row[++i] == num) continue;
            for(int j=i;j<row.length;j++) {
                if (row[j] == num) {
                    temp = row[i];
                    row[i]=row[j];
                    row[j]=temp; 
                    cnt++;
                }
            }
        }
        return cnt;
    }
}