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Hackerrank CounterCode 2015 Campers

Problem Statement

Time is running out. You have a final match to play as a counter terrorist. You have N players each having a distinct ID from 1 to N. You have to choose some players on your team from these N players such that no two chosen players have consecutive numbers (as they tend to kill each other). Also you definitely have to choose some K players whose numbers are given. They are the snipers. Find the maximum number of players that you can choose.

Input Format

 The first line contains 2 space-separated integers, N and K, where N is the total number of players and K is the number of players that have to be definitely in the team (the snipers).
The second line contains K space-separated integers that are the IDs of the snipers.

NOTE: There are no two snipers with consecutive numbers.


1 ID of each sniper N

Output Format

You need to print the maximum number of players that you can have in your team.

Sample Input
8 2
6 2

Sample Output


There are 8 players in total, among which you have to definitely choose players with ID 2 and 6.

To maximize the number of players in the team, you will choose the players with IDs 4 and 8, so that you will have a total of 4 players.

Camper: A player in a professional team dedicated to using the AWP sniper rifle.

#include <stdio.h>
#include <string.h>
#include <math.h>
#include <stdlib.h>
int compare(const void * a, const void * b)
   return (*(long long int*)a>*(long long int*)b);
int main()
   long long int n,k,i,d,sum=0,e;
    scanf("%lld %lld",&n,&k);
   long long int s[k];
   qsort(s,k,sizeof(long long int),compare);
        e = ((d-2)%2); 
        sum += e;
        sum += e;
        sum += e;
        sum += e;
            sum += e;
       sum += e;
   return 0;


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01-Select All
Given a City table, whose fields are described as +-------------+----------+ | Field       | Type     | +-------------+----------+ | ID          | int(11)  | | Name        | char(35) | | CountryCode | char(3)  | | District    | char(20) | | Population  | int(11)  | +-------------+----------+
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