g1901_2000.s1910_remove_all_occurrences_of_a_substring

Class Solution

java.lang.Object

g1901_2000.s1910_remove_all_occurrences_of_a_substring.Solution

public class Solution
extends Object

1910 - Remove All Occurrences of a Substring.

Medium

Given two strings s and part, perform the following operation on s until all occurrences of the substring part are removed:

• Find the leftmost occurrence of the substring part and remove it from s.

Return s after removing all occurrences of part.

A substring is a contiguous sequence of characters in a string.

Example 1:

Input: s = “daabcbaabcbc”, part = “abc”

Output: “dab”

Explanation: The following operations are done:

• s = “da**abc**baabcbc”, remove “abc” starting at index 2, so s = “dabaabcbc”.

• s = “daba**abc**bc”, remove “abc” starting at index 4, so s = “dababc”.

• s = “dab**abc**”, remove “abc” starting at index 3, so s = “dab”. Now s has no occurrences of “abc”.

Example 2:

Input: s = “axxxxyyyyb”, part = “xy”

Output: “ab”

Explanation: The following operations are done:

• s = “axxx**xy**yyyb”, remove “xy” starting at index 4 so s = “axxxyyyb”.

• s = “axx**xy**yyb”, remove “xy” starting at index 3 so s = “axxyyb”.

• s = “ax**xy**yb”, remove “xy” starting at index 2 so s = “axyb”.

• s = “a**xy**b”, remove “xy” starting at index 1 so s = “ab”. Now s has no occurrences of “xy”.

Constraints:

• 1 <= s.length <= 1000
• 1 <= part.length <= 1000
• s and part consists of lowercase English letters.

Constructor Summary

Constructors

Constructor and Description
Solution()

Method Summary

Modifier and Type	Method and Description
String	removeOccurrences(String s, String part)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Solution

public Solution()

Method Detail

removeOccurrences

public String removeOccurrences(String s,
                                String part)