Bukary Kandeh
BAN USERSoftware/Data Engineer/Architect
SELECT C.* FROM Customers C LEFT JOIN
Orders O ON C.ID = O.ID WHERE O.ID IS NULL
Java Solution simple and efficient 0(n)
public static void EncodeString(String str) {
Map<Character, Integer> map = new LinkedHashMap<Character, Integer>();
String s = "";
char[] ch = str.toCharArray();
for (int i = 0; i < str.length(); i++) {
if (map.containsKey(ch[i])) {
map.put(ch[i], map.get(ch[i]) + 1);
} else
map.put(ch[i], 1);
}
for (Map.Entry<Character, Integer> kv : map.entrySet()) {
if (kv.getValue() != 1)
s += kv.getKey() + "" + kv.getValue();
else
s += kv.getKey();
}
System.out.println(s);
}
Repcoragkemmer, Data Scientist at Bankbazaar
Have years of experience to treating variety of outpatients with modalities such as massage, exercise, paraffin, joint mobilization, mechanical traction ...
- Bukary Kandeh May 31, 2018