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authorZhongheng Liu <z.liu@outlook.com.gr>2024-11-25 20:38:03 +0200
committerZhongheng Liu <z.liu@outlook.com.gr>2024-11-25 20:38:03 +0200
commit4531afb7137e85dbdc45ec9147612a101568a507 (patch)
tree473fcf5b2e0ab7b1852ca7749b91231d797e2e73 /algorithms
parent5df83b0e15a757b4803b66b9af6a7e5afcd1667e (diff)
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chore: move and rename
Diffstat (limited to 'algorithms')
-rw-r--r--algorithms/binary_sort.py73
-rw-r--r--algorithms/bubble_sort.py39
-rw-r--r--algorithms/linear_search.py21
3 files changed, 133 insertions, 0 deletions
diff --git a/algorithms/binary_sort.py b/algorithms/binary_sort.py
new file mode 100644
index 0000000..2e71b52
--- /dev/null
+++ b/algorithms/binary_sort.py
@@ -0,0 +1,73 @@
+import random
+def generate_test_data(length: int, _range: tuple):
+ arr = []
+ for i in range(length):
+ arr.append(random.randint(int(_range[0]), int(_range[1])))
+ return arr
+def binsearch(arr, item):
+ arr = sorted(arr)
+ print(arr)
+ ubound, lbound = len(arr) - 1, 0
+ found = False
+ while not found and lbound <= ubound:
+ index = (lbound + ubound) // 2
+ if arr[index] == item:
+ found = True
+ print("Found here")
+ return found
+ if arr[index] > item:
+ ubound = index - 1
+ if arr[index] < item:
+ lbound = index + 1
+ print("not found")
+ return found
+
+
+def linear_search_while(arr: list, item):
+ found: bool = False
+ index = 0
+ while not found and index < len(arr):
+ if (arr[index] == item):
+ found = True
+ break
+ index += 1
+ return (found, index)
+def linear_search(arr: list, item):
+ index = 0
+ for _item in arr:
+ if _item == item:
+ return (True, index)
+ index += 1
+ return False
+def test_existsness(samples: int):
+ yes = 0
+ no = 0
+ for i in range(samples):
+ query = random.randint(0, 100)
+ array = generate_test_data(100, (0, 100))
+ found = linear_search(array, query)
+ if found:
+ yes += 1
+ else:
+ no += 1
+ print(f"In {samples} samples, {yes} match, {no} don't")
+def main():
+ narr = sorted(["A", "B", "C", "D", "E"])
+ print("Hello world")
+ array = generate_test_data(10, (0, 100))
+ print(array)
+ query = int(input("Your query for item: "))
+ qstring = input("String item: ")
+ binsearch(narr, query)
+ found1 = linear_search(array, query)
+ found2 = linear_search_while(array, query)
+ if found1[0]:
+ print("Found by for loop method ", found1[1])
+ else: print("Not found.")
+ if found2[0]:
+ print("Found by while loop method ", found2[1])
+ else:
+ print("Not found.")
+ test_existsness(100)
+if __name__ == "__main__":
+ main()
diff --git a/algorithms/bubble_sort.py b/algorithms/bubble_sort.py
new file mode 100644
index 0000000..f77ea08
--- /dev/null
+++ b/algorithms/bubble_sort.py
@@ -0,0 +1,39 @@
+import random
+import string
+CHARS = list(string.ascii_lowercase)
+print(CHARS)
+def generate_test_data(length: int, _range: tuple):
+ arr = []
+ for i in range(length):
+ arr.append(random.randint(_range[0], _range[1]))
+ return arr
+def bubsort(arr: list):
+ for i in range(len(arr)):
+ # print(arr)
+ changed = False
+ for j in range(len(arr) - i - 1):
+ if arr[j] > arr[j+1]:
+ swp = arr[j+1]
+ arr[j+1] = arr[j]
+ arr[j] = swp
+ changed = True
+ if not changed: return arr
+def testarr_string(length: int):
+ arr = []
+ for i in range(length):
+ string = ""
+ for i in range(10):
+ string += CHARS[random.randint(0,len(CHARS) - 1)]
+ arr.append(string)
+ print(arr)
+ return arr
+def bubsort_reliability(samples: int):
+ y = 0
+ n = 0
+ for _ in range(samples):
+ test = generate_test_data(100, (0, 100))
+ if bubsort(test) == sorted(test): y += 1
+ else: n += 1
+ if y == samples: print(f"{samples} checks passed!")
+bubsort_reliability(100)
+print(bubsort(testarr_string(10))) \ No newline at end of file
diff --git a/algorithms/linear_search.py b/algorithms/linear_search.py
new file mode 100644
index 0000000..5a54ce6
--- /dev/null
+++ b/algorithms/linear_search.py
@@ -0,0 +1,21 @@
+import random
+def generate_test_data(length: int, _range: tuple):
+ arr = []
+ for i in range(length):
+ arr.append(random.randint(_range[0], _range[1]))
+ return arr
+def linsearch(myList: list, valueToFind: int):
+ mindex: int = len(myList) - 1
+ index: int = 0
+ found = False
+ while not found and index <= mindex:
+ if myList[index] == valueToFind:
+ found = True
+ index += 1
+ if found: print("VALUE FOUND!!!")
+ else: print("OH NO ITEM NOT FOUND IN LIST!!")
+def main():
+ inputFind = int(input("Value to find: "))
+ linsearch(generate_test_data(10, (0, 1000)), inputFind)
+if __name__ == "__main__":
+ main()