Can you explain what these functions do:
```
def merge_sort(arr):
    if len(arr) <= 1:
        return arr

    mid = len(arr) // 2
    left_half = arr[:mid]
    right_half = arr[mid:]

    left_half = merge_sort(left_half)
    right_half = merge_sort(right_half)

    return merge(left_half, right_half)


def merge(left, right):
    merged = []
    left_index = 0
    right_index = 0

    while left_index < len(left) and right_index < len(right):
        if left[left_index] <= right[right_index]:
            merged.append(left[left_index])
            left_index += 1
        else:
            merged.append(right[right_index])
            right_index += 1

    while left_index < len(left):
        merged.append(left[left_index])
        left_index += 1

    while right_index < len(right):
        merged.append(right[right_index])
        right_index += 1

    return merged
```
system
kya aap samajha sakate hai ki ye kaary kya karte hai:
`` `
def merge_sort (arr):
    yadi len (giraftaar) <= 1:
        vaapasi giraftaar

    mid = len (arr) // 2
    LEFT_HALF = ARR [: MID]
    right_half = arr [mid:]

    LEFT_HALF = MERGE_SORT (LEFT_HALF)
    right_half = merge_sort (right_half)

    ritern marz (LEFT_HALF, Right_half)


def marz (baayen, daaen):
    vilay = []
    LEFT_INDEX = 0
    right_index = 0

    jabaki LEFT_INDEX <LEN (baayen) or rhite_index <len (daaen):
        yadi left [left_index] <= rhite [rhite_index]:
            merged.append (baayen [LEFT_INDEX])
            LEFT_INDEX += 1
        anya:
            merged.append (sahi [right_index])
            right_index += 1

    jabaki LEFT_INDEX <len (baayen):
        merged.append (baayen [LEFT_INDEX])
        LEFT_INDEX += 1

    jabaki right_index <len (daaen):
        merged.append (sahi [right_index])
        right_index += 1

    marz kar diya gaya
`` `
user
code snipet marz sort elgorithm ko lagu karata he jo ek chhantai elgorithm he jo ek divide-and-concretar drushtikon kaa upyog karata he.elgorithm punaravarti rup se input sarani ko do sabarez main vibhajit karata he, unhen alag se krambaddh karata he or phir unhen ek krambaddh kram main waapas vilay kar detaa he.ham yah samajhane ke liye prayek fnction se guzar sakate hai ki yah kya kar rahaa he.

1. `marz_sort (giraftaar)`: yah fnction ek sarani letaa he or sort kiye gaye sarani ko lautaata he.
  - fnction main ek aadhaar maamla hota he, jab input sarani kii lambaai 1 se kam yaa baraabar hoti he kyonki 1 ke ek sarani aakaar kaa matlab he ki yah pehle se hi hal he.
  - yadi aadhaar maamla vifal ho jaataa he, to ham elgorithm jari rakhte hai.
  - elgorithm sarani ke madhya ko paata he or tatwon ko do hisson main `baayen_half` or` rhite_halaf` main vibhajit karata he.
  - yah in do hisson par `marz_sort` kahata he or phir do sort kiye gaye hisson kaa marz lautaata he.

2. `marz (baayen, daaen)`: yah fnction do sort kiye gaye saraniyon ko baayen or daaen ek krambaddh sarani main marz karata he.
  - yah prayek sarani ke vartmaan suchakank ko sangrahit karne ke liye nae sarani or do char ko sangrahit karne ke liye ek khaali sarani ko inishilise karata he.
  - elgorithm ek samay tak loop karata he jab tak ki ek sarani tatwon se thak jaati he.
  - loop ke bheetar, vartmaan baayen tatv or vartmaan daaen tatv ke bich ke tatwon ko sarani main sangrahit kiya jaataa he.
  - ek saraniyon main se ek ke baad puri tarah se pataa chalaa he, shesh anya sarani ko sarani main joda jaataa he.
assistant
<|system|>
</s>
<|user|>
kya aap samajha sakate hai ki ye kaary kya karte hai:
`` `
def merge_sort (arr):
    yadi len (giraftaar) <= 1:
        vaapasi giraftaar

    mid = len (arr) // 2
    LEFT_HALF = ARR [: MID]
    right_half = arr [mid:]

    LEFT_HALF = MERGE_SORT (LEFT_HALF)
    right_half = merge_sort (right_half)

    ritern marz (LEFT_HALF, Right_half)


def marz (baayen, daaen):
    vilay = []
    LEFT_INDEX = 0
    right_index = 0

    jabaki LEFT_INDEX <LEN (baayen) or rhite_index <len (daaen):
        yadi left [left_index] <= rhite [rhite_index]:
            merged.append (baayen [LEFT_INDEX])
            LEFT_INDEX += 1
        anya:
            merged.append (sahi [right_index])
            right_index += 1

    jabaki LEFT_INDEX <len (baayen):
        merged.append (baayen [LEFT_INDEX])
        LEFT_INDEX += 1

    jabaki right_index <len (daaen):
        merged.append (sahi [right_index])
        right_index += 1

    marz kar diya gaya
`` `</s>
<|assistant|>
code snipet marz sort elgorithm ko lagu karata he jo ek chhantai elgorithm he jo ek divide-and-concretar drushtikon kaa upyog karata he.elgorithm punaravarti rup se input sarani ko do sabarez main vibhajit karata he, unhen alag se krambaddh karata he or phir unhen ek krambaddh kram main waapas vilay kar detaa he.ham yah samajhane ke liye prayek fnction se guzar sakate hai ki yah kya kar rahaa he.

1. `marz_sort (giraftaar)`: yah fnction ek sarani letaa he or sort kiye gaye sarani ko lautaata he.
  - fnction main ek aadhaar maamla hota he, jab input sarani kii lambaai 1 se kam yaa baraabar hoti he kyonki 1 ke ek sarani aakaar kaa matlab he ki yah pehle se hi hal he.
  - yadi aadhaar maamla vifal ho jaataa he, to ham elgorithm jari rakhte hai.
  - elgorithm sarani ke madhya ko paata he or tatwon ko do hisson main `baayen_half` or` rhite_halaf` main vibhajit karata he.
  - yah in do hisson par `marz_sort` kahata he or phir do sort kiye gaye hisson kaa marz lautaata he.

2. `marz (baayen, daaen)`: yah fnction do sort kiye gaye saraniyon ko baayen or daaen ek krambaddh sarani main marz karata he.
  - yah prayek sarani ke vartmaan suchakank ko sangrahit karne ke liye nae sarani or do char ko sangrahit karne ke liye ek khaali sarani ko inishilise karata he.
  - elgorithm ek samay tak loop karata he jab tak ki ek sarani tatwon se thak jaati he.
  - loop ke bheetar, vartmaan baayen tatv or vartmaan daaen tatv ke bich ke tatwon ko sarani main sangrahit kiya jaataa he.
  - ek saraniyon main se ek ke baad puri tarah se pataa chalaa he, shesh anya sarani ko sarani main joda jaataa he.</s>
