Dynamic memory allocation kya hota hai

 Dynamic memory allocation ek 

programming concept hai jahan par 

aap program ke runtime mein 

memory allocate kar sakte hain. Ye 

aapko flexibility deta hai ki aap kitni 

memory aapke program ke liye 

allocate karna chahte hain, jab aap 

program chal raha hota hai. Isse aap 

program ke resources ko efficient 

tarike se manage kar sakte hain. C/C++ 

mein, malloc() aur free() functions 

dynamic memory allocation ko 

manage karne ke liye use kiye jate 

hain

Zaroor! Dynamic memory allocation 

ka matlab hota hai ki aap program ke 

runtime mein memory allocate kar 

sakte hain, jab aapka program 

execute 

ho raha hota hai. Isse aapko ye 

advantage milta hai ki aap memory ka 

use jitna zaroori ho, utna hi kar sakte 

hain aur bekar mein extra memory 

occupy nahi hogi.

Jab aap program likhte hain, toh aap 

memory ka ek fixed portion declare 

karte hain. Lekin kuch cases mein, 

aapko pata nahi hota ki aapko kitni 

memory ki zaroorat padegi, jaise agar 

aap user se data input le rahe hain 

aur 

uski quantity pehle se fix nahi hai. Is 

situation mein aap dynamic memory 

allocation ka use karke program ko 

itni memory provide kar sakte hain, 

jitni aapko actual mein chahiye hoti 

hai.

C/C++ mein, malloc() aur free() 

functions ka use hota hai dynamic 

memory allocation ke liye. malloc() 

function aapko memory allocate 

karne 

mein madad karta hai aur free() 

function allocated memory ko release 

kar deta hai jab aapka program us 

memory ki zaroorat nahi rakhta. Is 

tarah se aap memory ko efficient 

tarike se manage kar sakte hain aur 

wastage ko kam kar sakte hain.

Yeh approach aapko program ke performance mein sudhar dene mein madad karta hai, khaaskar jab aapko unpredictable ya changing memory requirements hote hain.