Day 19-q1 python code added SnowScriptWinterOfCode#415

Day-19/q1 Find Players With Zero or One Losses/Tech-neophyte--p.md

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+## Python code: (Using dict)
+```
+class Solution:
+    def findWinners(self, matches: List[List[int]]) -> List[List[int]]:
+        loss={}
+        for p in matches:
+            x, y=p
+            if x not in loss: loss[x]=0
+            if y in loss: loss[y]+=1
+            else: loss[y]=1
+        ans=[[], []]
+        for i, f in loss.items():
+            if f==0:
+                ans[0].append(i)
+            elif f==1:
+                ans[1].append(i)   
+       return [sorted(ans[0]), sorted(ans[1])]        
+```