Educational Codeforces Round 114 (Rated for Div. 2) Educational Codeforces Round 114 (Rated for Div. 2) question c

https://codeforces.com/contest/1574/problem/C

import java.util.*; import java.io.*; public class A124 { public static void process()throws IOException { int n=I(); TreeSet set=new TreeSet(); long[] a=Al(n);long sum=0; for(int i=0;i<n;i++) { set.add(a[i]); sum+=a[i]; }

    int m=I();
    for(int i=0;i<m;i++)
    {
       long xi=L();long yi=L();
       if(set.first()>xi)
       {
         if((long)(sum-set.first())>=yi)
            {
              pn((long)0);
            }
            else
            {
              pn((long)(yi-(sum-set.first())));
            }
       }
       else
       if(set.last()<xi)
       {
         long sum1=(long)Math.abs(xi-set.last());
         long s=sum-set.last();
         if(s>=yi)
            {
              pn((long)sum1);
            }
            else
            {
              pn((long)((yi-s)+sum1));
            }

       }
       else
       {
         long sum1=0;long sum2=0;

         sum1=(long)Math.abs(xi-set.floor(xi));
         sum2=(long)0;
         if((long)(sum-set.floor(xi))<yi)
         {
             sum1+=(long)(yi-(sum-set.floor(xi)));
         }
         if((long)(sum-set.ceiling(xi))<yi)
         {
          sum2+=(long)(yi-(sum-set.ceiling(xi)));
         }
         pn((long)Math.min(sum1, sum2));
       }
    }
}
static Scanner sc = new Scanner(System.in);
static PrintWriter out = new PrintWriter(System.out);
static void pn(Object o){out.println(o);out.flush();}
static void p(Object o){out.print(o);out.flush();}
static void pni(Object o){out.println(o);System.out.flush();}
static int I() throws IOException{return sc.nextInt();}
static long L() throws IOException{return sc.nextLong();}
static double D() throws IOException{return sc.nextDouble();}
static String S() throws IOException{return sc.next();}
static char C() throws IOException{return sc.next().charAt(0);}
static int[] Ai(int n) throws IOException{int[] arr = new int[n];for (int i = 0; i < n; i++)arr[i] = I();return arr;}
static String[] As(int n) throws IOException{String s[] = new String[n];for (int i = 0; i < n; i++)s[i] = S();return s;}
static long[] Al(int n) throws IOException {long[] arr = new long[n];for (int i = 0; i < n; i++)arr[i] = L();return arr;}
static void dyn(int dp[][],int n,int m,int z)throws IOException {for(int i=0;i<n;i++){ for(int j=0;j<m;j++){ dp[i][j]=z;}} }

// --------------------------------------------------------------------------------------------------------------------------------// static class AnotherReader {BufferedReader br;StringTokenizer st;AnotherReader() throws FileNotFoundException {br = new BufferedReader(new InputStreamReader(System.in));} AnotherReader(int a) throws FileNotFoundException {br = new BufferedReader(new FileReader("input.txt"));} String next() throws IOException{while (st == null || !st.hasMoreElements()) {try {st = new StringTokenizer(br.readLine());} catch (IOException e) {e.printStackTrace();}}return st.nextToken();} int nextInt() throws IOException {return Integer.parseInt(next());} long nextLong() throws IOException {return Long.parseLong(next());} double nextDouble() throws IOException {return Double.parseDouble(next());} String nextLine() throws IOException {String str = "";try {str = br.readLine();} catch (IOException e) {e.printStackTrace();}return str;}} public static void main(String[] args)throws IOException{try{boolean oj=true;if(oj==true) {AnotherReader sk=new AnotherReader();PrintWriter out=new PrintWriter(System.out);} else {AnotherReader sk=new AnotherReader(100);out=new PrintWriter("output.txt");}

{process();}out.flush();out.close();}catch(Exception e){return;}}}

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