数据结构与算法考点初探:轻松掌握核心概念

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数据结构与算法考点初探:轻松掌握核心概念

2024-11-16广场19

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鏁版嵁缁撴瀯鍩虹姒傝

数据结构与算法考点初探:轻松掌握核心概念

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数据结构与算法考点初探:轻松掌握核心概念

鏁扮粍涓庨摼琛ㄦ繁搴﹁В鏋?/p>

数据结构与算法考点初探:轻松掌握核心概念

class Array:

def init(self, size):

self.size = size

self.data = [None] size

def insert(self, index, value):

if self.data[index] is None:

self.data[index] = value

else:

print("璇ョ储寮曞凡琚崰鐢?)

def print_array(self):

print(self.data)

class Node:

def init(self, value=None):

self.value = value

self.next = None

class LinkedList:

def init(self):

self.head = None

def insert_at_end(self, value):

new_node = Node(value)

if self.head is None:

self.head = new_node

else:

current = self.head

while current.next:

current = current.next

current.next = new_node

def print_list(self):

current = self.head

while current:

print(current.value)

current = current.next

闃熷垪涓庢暟鎹粨鏋勪笘鐣屾帰绱?/p>

闃熷垪姒傝堪

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鏍戜笌鍥惧垵鎺?/p>

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绠楁硶鍩虹鍙婃帶娴佺粨鏋?/p>

绠楁硶鏄竴绯诲垪瑙e喅闂鐨勬竻鏅版寚浠わ紝鍏锋湁绮剧‘鎬с€佹湁鏁堟€с€佹湁绌锋€у拰纭畾鎬с€傛帶鍒剁粨鏋勬槸绠楁硶璁捐鐨勬牳蹇冿紝涓昏鍖呮嫭涓夌绫诲瀷锛氶『搴忕粨鏋勩€侀€夋嫨缁撴瀯鍜屽惊鐜粨鏋勩€?/p>

椤哄簭缁撴瀯鎸夌収缂栧啓鐨勯『搴忛€愯鎵ц銆?/p>

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```python

def conditional_example(x):

if x > 0:

return "Positive"

elif x == 0:

return "Zero"

else:

return "Negative"

```

寰幆缁撴瀯鍏佽鐗瑰畾鐨勪唬鐮佸潡閲嶅鎵ц锛岀洿鍒版弧瓒虫煇涓潯浠躲€備緥濡傦細

```python

def loop_example():

for i in range(1, 11):

print(i)

```

绠楁硶澶嶆潅搴﹀垎鏋愬疄鎴?/p>

璇勪及绠楁硶鎬ц兘鐨勯噸瑕佸伐鍏蜂箣涓€鏄畻娉曞鏉傚害鍒嗘瀽锛屽寘鎷椂闂村鏉傚害鍜岀┖闂村鏉傚害銆備緥濡傦紝Fibonacci鍑芥暟鐨勯€掑綊瀹炵幇铏界劧绠€娲侊紝浣嗗叾鏃堕棿澶嶆潅搴﹁緝楂樸€傛垜浠彲浠ヤ娇鐢≒ython鐨則ime妯″潡鏉ユ祴閲忓叾鎵ц鏃堕棿锛?/p>

```python

def fibonacci(n):

if n <= 1:

return n

else:

return fibonacci(n-1) + fibonacci(n-2)

def time_complexity(f):

n = 50

import time

start = time.time()

result = f(n)

end = time.time()

print(f"{f.__name__}鎵€鑰楄垂鐨勬椂闂翠负 {end - start} 绉?)

```

鎺掑簭涓庢悳绱㈢畻娉曡В鏋?/p>

```python

def binary_search(arr, target):

low, high = 0, len(arr) - 1

while low <= high:

mid = (low + high) // 2

if arr[mid] == target:

return mid

elif arr[mid] < target:

low = mid + 1

else:

high = mid - 1

return -1

```

---

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涓€銆佸湪绾跨紪绋嬪钩鍙扮粌涔犳帹鑽?/h3>

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