Language: Java

import java.util.*;
import java.io.*;

public class Main{
    public static int pos(int a[],int l,int c){
        for(int i=0;i<a.length;i++){
            if(a[i]%l==0)a[i]--;
            c-=a[i]/l;
        }
        return c>=0;
    }
    public static void main(String []args) throws IOException{
        Reader sc=new Reader();
        PrintWriter out=new PrintWriter(System.out);
        int n=sc.nextInt(),c=sc.nextInt();
        int a[]=new int[n];
        for(int i=0;i<n;i++)a[i]=sc.nextInt();
        int hi=Integer.MIN_VALUE,lo=Integer.MAX_VALUE;
        for(int i=0;i<n;i++){
            hi=Integer.max(hi,a[i]);
            lo=Integer.min(lo,a[i]);
        }
        while(hi-lo>1){
            int mid=(hi+lo)/2;
            if(pos(a,mid,c)){
                l=mid;
            }else{
                hi=mid;
            }
        }
        if(pos(a,lo,c)){
            out.println(lo);
        }else{
            out.println(hi);
        }
        out.flush();
    }
}

class Reader 
    { 
        final private int BUFFER_SIZE = 1 << 16; 
        private DataInputStream din; 
        private byte[] buffer; 
        private int bufferPointer, bytesRead; 
  
        public Reader() 
        { 
            din = new DataInputStream(System.in); 
            buffer = new byte[BUFFER_SIZE]; 
            bufferPointer = bytesRead = 0; 
        } 
  
        public Reader(String file_name) throws IOException 
        { 
            din = new DataInputStream(new FileInputStream(file_name)); 
            buffer = new byte[BUFFER_SIZE]; 
            bufferPointer = bytesRead = 0; 
        } 
  
        public String readLine() throws IOException 
        { 
            byte[] buf = new byte[64]; // line length 
            int cnt = 0, c; 
            while ((c = read()) != -1) 
            { 
                if (c == '\n') 
                    break; 
                buf[cnt++] = (byte) c; 
            } 
            return new String(buf, 0, cnt); 
        } 
  
        public int nextInt() throws IOException 
        { 
            int ret = 0; 
            byte c = read(); 
            while (c <= ' ') 
                c = read(); 
            boolean neg = (c == '-'); 
            if (neg) 
                c = read(); 
            do
            { 
                ret = ret * 10 + c - '0'; 
            }  while ((c = read()) >= '0' && c <= '9'); 
  
            if (neg) 
                return -ret; 
            return ret; 
        } 
  
        public long nextLong() throws IOException 
        { 
            long ret = 0; 
            byte c = read(); 
            while (c <= ' ') 
                c = read(); 
            boolean neg = (c == '-'); 
            if (neg) 
                c = read(); 
            do { 
                ret = ret * 10 + c - '0'; 
            } 
            while ((c = read()) >= '0' && c <= '9'); 
            if (neg) 
                return -ret; 
            return ret; 
        } 
  
        public double nextDouble() throws IOException 
        { 
            double ret = 0, div = 1; 
            byte c = read(); 
            while (c <= ' ') 
                c = read(); 
            boolean neg = (c == '-'); 
            if (neg) 
                c = read(); 
  
            do { 
                ret = ret * 10 + c - '0'; 
            } 
            while ((c = read()) >= '0' && c <= '9'); 
  
            if (c == '.') 
            { 
                while ((c = read()) >= '0' && c <= '9') 
                { 
                    ret += (c - '0') / (div *= 10); 
                } 
            } 
  
            if (neg) 
                return -ret; 
            return ret; 
        } 
  
        private void fillBuffer() throws IOException 
        { 
            bytesRead = din.read(buffer, bufferPointer = 0, BUFFER_SIZE); 
            if (bytesRead == -1) 
                buffer[0] = -1; 
        } 
  
        private byte read() throws IOException 
        { 
            if (bufferPointer == bytesRead) 
                fillBuffer(); 
            return buffer[bufferPointer++]; 
        } 
  
        public void close() throws IOException 
        { 
            if (din == null) 
                return; 
            din.close(); 
        } 
    } 

Compiler output:
Main.java:10: error: incompatible types: boolean cannot be converted to int
        return c>=0;
                ^
Main.java:25: error: incompatible types: int cannot be converted to boolean
            if(pos(a,mid,c)){
                  ^
Main.java:26: error: cannot find symbol
                l=mid;
                ^
  symbol:   variable l
  location: class Main
Main.java:31: error: incompatible types: int cannot be converted to boolean
        if(pos(a,lo,c)){
              ^
4 errors