Satr (string) turi va uning funksiyalari. Dictionary ( lug’at) turi va uning funksiyalari. Funksiya yaratish va unga misollar

Lug’at yaratish:

thisdict = {
  "brand": "Ford",
  "model": "Mustang",
  "year": 1964
}
print(thisdict)

Natija: {'brand': 'Ford', 'model': 'Mustang', 'year': 1964}

• 
  Lug’atda elemnetga murojat:
  

thisdict = {

"brand": "Ford",

"model": "Mustang",

"year": 1964

}

x = thisdict["model"]

print(x)

Natija: Mustang

• 
  Get()-funksiyasi:
  

thisdict = {

"brand": "Ford",

"model": "Mustang",

"year": 1964

}

x = thisdict.get("model")

print(x)

Natija: Mustang

• 
  Lug’atda qiymatni uzgartisrish:
  

thisdict = {

"brand": "Ford",

"model": "Mustang",

"year": 1964

}

thisdict["year"] = 2018

print(thisdict)

Natija: {'brand': 'Ford', 'model': 'Mustang', 'year': 2018}

• 
  Lug’at yaratish:
  

thisdict = {
  "brand": "Ford",
  "model": "Mustang",
  "year": 1964
}
print(thisdict)

Natija: {'brand': 'Ford', 'model': 'Mustang', 'year': 1964}

• 
  Lug’atda qiymatlarni chop etish:
  

for x in thisdict.values():

print(x)

Natija: Ford
Mustang
1964

• 
  Lug’at uzunligi:
  

print(len(thisdict))

Natija: 3

• 
  Lug’atga element qushish:
  

thisdict = {

"brand": "Ford",

"model": "Mustang",

"year": 1964

}

thisdict["color"] = "red"

print(thisdict)

Natija: {'brand': 'Ford', 'model': 'Mustang', 'year': 1964, 'color': 'red'}

• 
  Lug’atda nusxalash:
  

thisdict = {
  "brand": "Ford",
  "model": "Mustang",
  "year": 1964
}
mydict = thisdict.copy()
print(mydict)

Natija: {'brand': 'Ford', 'model': 'Mustang', 'year': 1964}

• 
  Lug’atda pop va popitem uchiish funksiyalari:
  

thisdict = {
  "brand": "Ford",
  "model": "Mustang",
  "year": 1964
}
thisdict.pop("model")
print(thisdict)

thisdict.popitem()

print(thisdict)

Natija: {'brand': 'Ford', 'year': 1964}

{'brand': 'Ford'}

• 
  Lug’atda clear
  

car = {

"brand": "Ford",

"model": "Mustang",

"year": 1964

}

car.clear()

print(car)

Natija: {}

3. Funksiya – bu ko'p marta ishlatiladigan dastur bo'lagi. Funksiyalar ma'lum buyruqlar blokini ko'rsatilgan nom bilan saqlash va shu blokni dasturning istalgan joyida, istalgan miqdorda bajarish imkonini beradi. Biz oldingi darslarimizda len va range Python funksiyalari bilan tanishgan edik.

Funksiyalar def zahira so'zi orqali aniqlanadi. Bu so'zdan so'ng funksiya nomi, undan so'ng qavs va shu qavs ichida bir necha o'zgaruvchilarni ko'rsatish mumkin bo'ladi va oxirida ikki nuqta (:) yoziladi. Shulardan so'ng funksiyani tashkil qiluvchi buyruqlar bloki yoziladi

Funksiyalarga misollar keltiraylik:

#mergesort

def kamsort(ziyo):

if len(ziyo)>1:

mid=len(ziyo)//2

l=ziyo[:mid]

r=ziyo[mid:]

kamsort(l)

kamsort(r)

i=j=k=0

while iif l[i]

ziyo[k]=l[i]

i+=1

else:

ziyo[k]=r[j]

j+=1

k+=1

while i

ziyo[k]=l[i]

i+=1

k+=1

while j

ziyo[k]=r[j]

j+=1

k+=1

def men(ziyo):

for i in range(len(ziyo)):

print(ziyo[i],end=" ")

print()

ziyo=[16,49,85,24,13,56,7,44]

print("Kiritilgan massiv !!!",end="\n")

men(ziyo)

kamsort(ziyo)

print("Tartiblangan massiv !!!",end="\n")

men(ziyo)

 Kiritilgan massiv !!!

16 49 85 24 13 56 7 44

Tartiblangan massiv !!!

7 13 16 24 44 49 56 85

# Quicksort

def partition(ziyo,low,high):

i = ( low-1 )

pivot =ziyo[high]

for j in range(low , high):

if ziyo[j] < pivot:

i = i+1

ziyo[i],ziyo[j] = ziyo[j],ziyo[i]

ziyo[i+1],ziyo[high] = ziyo[high],ziyo[i+1]

return ( i+1 )

def quickSort(ziyo,low,high):

if low < high:

pi = partition(ziyo,low,high)

quickSort(ziyo, low, pi-1)

quickSort(ziyo, pi+1, high)

ziyo= [12,56,48,7,5,19,45,32,59,14]

n = len(ziyo)

for i in range(n):

print (ziyo[i],end=" ")

quickSort(ziyo,0,n-1)

print(" ")

print ("Berilgan massivni o'sish tartibida !!!")

for i in range(n):

print (ziyo[i],end=" ")

12 56 48 7 5 19 45 32 59 14

berilgan massivni o'sish tartibida !!!

5 7 12 14 19 32 45 48 56 59

#BINARY SEARCH

print("Qidirgan elementizni kiriting !!!")

def bsearch(ziyo, l, r, x):

if r >= l:

mid = l + (r - l) // 2

if ziyo[mid] == x:

return mid

elif ziyo[mid] > x:

return bsearch(ziyo, l, mid - 1, x)

else:

return bsearch(ziyo, mid + 1, r, x)

else:

return -1

ziyoda= [2, 3, 4, 10, 15, 22, 30, 35, 40]

x = int(input("n="))

m= bsearch(ziyoda, 0, len(massiv) - 1, x)

if m!= -1:

print("Kiritgan elementiz nomeri !!!")

print(m+1)

else:

print("Bunday element yuq !!!")

qidirgan elementizni kiriting !!!

n=2

kiritgan elementiz nomeri !!!

1