3.1.6.8 Lists - more details

Lists - some simple programs

Now let's find the location of a given element inside a list:

myList = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10] toFind = 5 found = False for i in range(len(myList)): found = myList[i] == toFind if found: break if found: print("Element found at index", i) else: print("absent")

Note:

• the target value is stored in the toFind variable;
• the current status of the search is stored in the found variable (True/False)
• when found becomes True, the for loop is exited.

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Let's assume that you've chosen the following numbers in the lottery: 3, 7, 11, 42, 34, 49.

The numbers that have been drawn are: 5, 11, 9, 42, 3, 49.

The question is: how many numbers have you hit?

The program will give you the answer:

drawn = [5, 11, 9, 42, 3, 49] bets = [3, 7, 11, 42, 34, 49] hits = 0 for number in bets: if number in drawn: hits += 1 print(hits)

Note:

• the drawn list stores all the drawn numbers;
• the bets list stores your bets;
• the hits variable counts your hits.

The program output is: 4.

•  Sandbox

1

• Console