set 14 week 3

Author: Suvoo

Week 3/SET 14 -Week 3/ques1.py

@@ -0,0 +1,19 @@
+class ques1:
+
+   def __init__(self):
+       pass
+
+   def twoSum(self, nums, target):
+        lookup = {}
+        for i, num in enumerate(nums):
+            if target - num in lookup:
+                return (lookup[target - num], i )
+            lookup[num] = i
+
+arr = [int(x) for x in input().split()]   
+target = int(input())  
+obj = ques1()
+index1,index2 = obj.twoSum(arr, target)     
+print (index1 + 1)
+print (index2 + 1)  
+#print("index1=%d, index2=%d" % py_solution().twoSum((10,20,10,40,50,60,70),50))

Week 3/SET 14 -Week 3/ques2.py

@@ -0,0 +1,16 @@
+class ques2:
+
+    def __init__(self):
+        pass
+
+    def _getString(self):
+        s = input()
+        return s
+        
+    def _printString(self,s):
+        print(s.upper())
+
+obj =  ques2()
+s = obj._getString()
+obj._printString(s)
+        

Week 3/SET 14 -Week 3/ques3.py

@@ -0,0 +1,13 @@
+class ques3():
+    
+    def __init__(self, l, w):
+        self.length = l
+        self.width  = w
+
+    def rectangle_area(self):
+        return self.length*self.width
+
+l = int(input())
+w = int(input())
+obj = ques3(l,w)
+print(obj.rectangle_area())

Week 3/SET 14 -Week 3/ques4.py

@@ -0,0 +1,17 @@
+class ques4:
+   def __init__(self) -> None:
+       pass
+
+   def is_valid_parenthese(self, str1):
+        stack, pchar = [], {"(": ")", "{": "}", "[": "]"}
+        for parenthese in str1:
+            if parenthese in pchar:
+                stack.append(parenthese)
+            elif len(stack) == 0 or pchar[stack.pop()] != parenthese:
+                return False
+        return len(stack) == 0
+
+obj = ques4()
+s = input()
+ans = obj.is_valid_parenthese(s)
+print(ans)

Week 3/SET 14 -Week 3/ques5.py

@@ -0,0 +1,14 @@
+class ques5:
+    def sub_sets(self, sset):
+        return self.subsetsRecur([], sorted(sset))
+    
+    def subsetsRecur(self, current, sset):
+        if sset:
+            return self.subsetsRecur(current, sset[1:]) + self.subsetsRecur(current + [sset[0]], sset[1:])
+        return [current]
+
+obj = ques5()
+arr = [int(x) for x in input().split()]   
+ans = obj.sub_sets(arr)
+print(ans)
+