update .gitignore, remove .vscode and .idea folders, move berkely to ysu-acm

ysu-acm/1991 YSU-ACM High School Programming Contest/2/main.py

@@ -0,0 +1,16 @@
+import os, sys, math
+
+path = os.path.join(sys.path[0], 'input')
+data = open(path, 'r').read().split('\n')
+# To keep with the times of 1991, we will use the constraints of Python2 for max integers
+maxInt = 9223372036854775807
+
+def extend(n):
+    res = 1
+    for x in range(2, n + 1):
+        res = x * res
+    return res
+
+x = 100
+print(extend(x))
+print(math.log(extend(x), 10))