week 1 homeworks

Hackerrank assignments.py

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+
+a = int(input())
+b = int(input())
+print('{0} \n{1} \n{2}'.format((a + b), (a - b), (a * b)))
+
+
+
+
+
+
+
+
+if __name__ == '__main__':
+    N = int(input())
+    empty = []
+    conv = []
+
+    for i in range(N):
+        x = input().split()
+        empty.append(x)
+
+    for i in range(len(empty)):
+        if empty[i][0] == 'insert':
+            x = int(empty[i][1])
+            y = int(empty[i][2])
+            conv.insert(x,y)
+        elif empty[i][0] == 'print':
+            print(conv)
+        elif empty[i][0] == 'remove':
+            conv.remove(int(empty[i][1]))
+        elif empty[i][0] == 'append':
+            conv.append(int(empty[i][1]))
+        elif empty[i][0] == 'sort':
+            conv.sort()
+        elif empty[i][0] == 'pop':
+            conv.pop()
+        elif empty[i][0] == 'reverse':
+            conv.reverse()
+
+
+
+
+
+
+
+
+if __name__ == '__main__':
+    n = int(input())
+    print(*[num+1 for num in range(n)], sep='', end="")
+
+
+
+
+if __name__ == '__main__':
+    n = int(input())
+    student_marks = {}
+    for _ in range(n):
+        name, *line = input().split()
+        scores = list(map(float, line))
+        student_marks[name] = scores
+    query_name = input()
+
+
+    for key, value in student_marks.items():
+        if query_name == key:
+            sum = 0
+            count = 0
+            for i in value:
+                sum += i
+                count += 1
+            average = sum/count
+            print("{:.2f}".format(average))