Урок 1, задачи из дз

task1.py

@@ -0,0 +1,5 @@
+b = input().split(' ')
+sum = 0
+for i in b:
+    sum = sum + float(i)
+print(sum)

task2.py

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+stroka = input()
+while True:
+    str_sim2 = str()
+    a = ''
+    a = input()
+    if a == '':
+        break
+    sim1, sim2 = a.split('->')[0], a.split('->')[1]
+    for i in stroka:
+        if  i == sim1:
+            str_sim2 = str_sim2 + sim2
+        else:
+            str_sim2 = str_sim2 + i  
+    stroka = str_sim2
+    print(stroka)

task3.py

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+c = input().split(' ')
+stroka = str()
+for i in c:
+    m = int(abs(float(i)))
+    stroka = stroka + str(m) + ' '
+print(stroka[:-1])

task4.py

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+a = input().split(' ')
+summa = int()
+for i in a:
+    summa = summa + float(i) ** 2
+print(summa)

task5.py

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+alfavit = "abcdefghijklmnopqrstuvwxyz"
+a = input().split(' ')
+kod = int(input())
+b = ''.join(a)
+stroka = ''
+for i in b:
+    index = alfavit.find(i)
+    k = index + kod
+    while k >= len(alfavit):
+        k = k - len(alfavit)
+    stroka = stroka + alfavit[k]
+print(stroka))