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Author: Saptarshi-prog

3. Longest Substring.py

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+# -*- coding: utf-8 -*-
+"""
+Created on Mon Sep  7 22:46:33 2020
+
+@author: 91842
+"""
+s = input()
+m = 0
+d = []
+for char in s:
+    if char in d:
+        d = d[d.index(char)+1:]
+        
+        
+    d.append(char)
+    print(d)
+    
+    m = max(m, len(d))
+
+print(m)

5. Reverse integer 1.0.py

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+# -*- coding: utf-8 -*-
+"""
+Created on Tue Sep  8 20:33:51 2020
+
+@author: 91842
+"""
+
+a = int(input())
+
+c = a
+        
+if a<0:
+    a=-a
+    
+d = list(str(a))
+b = []
+i = len(d)-1
+        
+while i>=0:
+    b.append(d[i])
+    i-=1
+            
+ans = "".join(map(str,b))
+ans = int(ans)
+        
+if c<0:
+    ans= -ans
+            
+if ans > (2**31-1) or ans<-(2**31):
+    print(0)
+else:
+    print(ans)

Angle between hour and minute hand.py

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+# -*- coding: utf-8 -*-
+"""
+Created on Wed Sep  9 23:06:38 2020
+
+@author: 91842
+"""
+hour,minutes = [int(i) for i in input().split()]
+
+hour=hour+minutes/60
+minutes = minutes/5
+        
+ans = (max(hour,minutes)-min(hour,minutes))*30
+print(min(ans,360-ans))