Regarding a hacker block problem

#1

sir there is a question in a in hacker block that I have done and I am getting a wrong output can you help
there is the problem
https://hack.codingblocks.com/app/practice/1/1451/problem
and my code

#2
  1. you have to take input like this
    first value is for start time and second is for end time
for(int i=0;i<n;i++){

       cin>>srt[i];

       cin>>end[i];

   }

  1. also initialize plt with 0

  2. if(srt[i+1]<end[i]){
    plt++;
    }
    using this condition you will not get min no of party halls
    because some party halls may vaccant after some time
    also reuse them

#3


its showing me test case fails can you check

#4

if you sort both the arrays
sort(srt,srt+n);

sort(end,end+n);
then you lose the pairs of starting and ending time of meet

you have to store them in a vector of pairs and the sort

#5

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