ye question mein humlog upper bound and lower bound use kar sakte hai time save karne ke liye?
Bsearch - First and last occurence
hello @tusharjha9835
ha hum upper bound aur lower bound ki help se kar sakte hai.
pehle binary serach function use karke ke pata karo ki key present hai ya nahi.
agar nahi hai to -1.
otherwise use lower bound and upperbound