Create WePay.md

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+
+
+就是一个slide windows 的题目
+
+```python
+inputs = [5,1,2,100,2,2]
+def alert(inputs, windowSize, allowedIncrease):
+    b = []
+    tmp = {}
+    for i in range(len(inputs) - windowSize):
+        for j in range(i, i+windowSize+1):
+            if j in tmp.keys():
+                if j > len(inputs) - windowSize-1:
+                    tmp.get(j).append(inputs[i+1:i + windowSize+1])
+                else:
+                    tmp.get(j).append(inputs[i:i+windowSize])
+            else:
+                print(j,j, i, i+ windowSize)
+                if j > len(inputs) - windowSize -1:
+                    tmp[j] = [inputs[i+1:i + windowSize+1]]
+                else:
+                    tmp[j] = [inputs[i:i+windowSize]]
+    b = [inputs[i:i+windowSize] for i in range(len(inputs)-windowSize)]
+    print(tmp)
+    for num in tmp.keys():
+        if all(inputs[num] > sum(lis)/windowSize*allowedIncrease for lis in tmp.get(num)):
+            return True
+    b = [sum(i)/windowSize for i in b]
+    for i in range(len(b)):
+        if any(b[i] > b[j]*allowedIncrease for j in range(i)):
+            return True
+    return False
+print(alert(inputs,3,1.5))
+```