DSA/DSA_by_Code_and_Debug_yt.py at main · omprakash7218/DSA · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
lst = [1,2,3,4,7,-2,4,2,54654,654,5,5,654,5,8,5,8,5,825,8,5,85,5]
# ? we are going to find maximum and minimum without using any method of list data type.
# 1st attempt
smallest = lst[0]
largest = lst[0]
for i in lst:
    if i < smallest:
        smallest = i
    elif len(lst)==0:
        print("No items in the list")
    else:
        continue
print("Smallest number in the list: ",smallest)

for i in lst:
    if i > largest:
        largest = i
    elif len(lst)==0:
        print("No item in the list")
    else:
        continue
print("Largest number in the list: ",largest)
# 2nd attempt
smallest = lst[0]
largest = lst[0]
for i in lst:
    if len(lst)==0:
        print("No items in the list")
    elif i > largest:
        largest = i
    elif i < smallest:
        smallest = i
    else:
        continue
print("Smallest number in the list: ",smallest)
print("Largest number in the list: ",largest)

for i in lst:
    if i > largest:
        largest = i
    elif len(lst)==0:
        print("No item in the list")
    else:
        continue


def largest_smallest(lst):
    smallest = lst[0]
    largest = lst[0]
    for i in lst:
        if i < smallest:
            smallest = i
        elif len(lst)==0:
            print("No items in the list")
        elif i > largest:
            largest = i
        else:
            continue
    print("Smallest number in the list: ",smallest)
    print("Largest number in the list: ",largest)

largest_smallest(lst)
# ? calculate the number of elements in the list
# chat gpt version of the question

def find_min_max(numbers):
    # Edge case: Return None if the list is empty to prevent errors
    if not numbers:
        return None, None

    # 1. Assume the first number is both the smallest and the largest
    min_val = numbers[0]
    max_val = numbers[0]

    # 2. Ldeoop through every number in the list
    for num in numbers:
        # 3. Check if the current number is smaller than our record
        if num < min_val:
            min_val = num

        # 4. Check if the current number is larger than our record
        if num > max_val:
            max_val = num

    return min_val, max_val

# --- Example Usage ---
my_list = [34, 12, 5, 78, 2, 99, 45]
smallest, largest = find_min_max(my_list)

print("Minimum number is:", smallest)
print("Maximum number is:", largest)

def len(lst):
    count = 0
    for items in lst:
        count += 1
    print(count)
len(lst)

# ? sum of all elements of a list
def sum(lst):
    sum = 0
    for items in lst:
        sum += items
    print(sum)
sum(lst)

# count even and odd numbers in an array
def even_odd(lst):
    count_even = 0
    count_odd = 0
    for items in lst:
        if items%2==0:
            count_even += 1
        else:
            count_odd += 1
    print("Even numbers in the list: ",count_even)
    print("Odd numbers in the list: ",count_odd)
even_odd(lst)