Add comprehensive LeetCode solutions index documentation

src/exercises/392.is-subsequence.py

@@ -0,0 +1,54 @@
+# @leet imports start
+from string import *
+from re import *
+from datetime import *
+from collections import *
+from heapq import *
+from bisect import *
+from copy import *
+from math import *
+from random import *
+from statistics import *
+from itertools import *
+from functools import *
+from operator import *
+from io import *
+from sys import *
+from json import *
+from builtins import *
+import string
+import re
+import datetime
+import collections
+import heapq
+import bisect
+import copy
+import math
+import random
+import statistics
+import itertools
+import functools
+import operator
+import io
+import sys
+import json
+from typing import *
+
+# @leet imports end
+
+
+# @leet start
+class Solution:
+    def isSubsequence(self, s: str, t: str) -> bool:
+        i, j = 0, 0
+        while j < len(s):
+            if i >= len(t):
+                break
+            if t[i] == s[j]:
+                j += 1
+            i += 1
+
+        return j == len(s)
+
+
+# @leet end