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  1. Prepare
  2. Java
  3. Data Structures
  4. Java Subarray
  5. Discussions

Java Subarray

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632 Discussions

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  • hungmanh2607uit1
     + 0 comments

    my code:

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

    public class Solution {

    public static void main(String[] args) {
    Scanner scan = new Scanner(System.in);

    int n = scan.nextInt();
    int[] arr = new int[n];

    for (int i = 0; i < n; i++) {
        arr[i] = scan.nextInt();
    }

    System.out.println(count(arr));   
    scan.close();
}

public static int count(int[] arr) {
    int dem = 0;

    for(int i =0; i<arr.length; i++){
        for(int j = i; j<arr.length; j++){
            int sum =0;
            for(int m = i; m<=j; m++){
                sum+=arr[m];
            }
            if(sum < 0){
                dem++;
            }
        }
    }

    return dem;
}

    }

  • h2134229
     + 0 comments
    import java.io.*;
import java.util.*;

public class Solution {

    public static void main(String[] args) {
        /* Enter your code here. Read input from STDIN. Print output to STDOUT. Your class should be named Solution. */
        Scanner scan= new Scanner(System.in);
        int n=scan.nextInt();
        int[] a= new int[n];
        for(int i=0;i<n;i++){
            a[i]=scan.nextInt();
        }
        int count=0;
        for(int k=0;k<n;k++){
            for(int i=0,j=i+k;i<n && j<n;i++,j=i+k){
                int sum=0;
                for(int x=i;x<=j;x++){
                    sum+=a[x];
                }
                count=sum<0? count+1:count;
        }}
        System.out.println(count);
    }
}

  • kavib9345
     + 0 comments

    java

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

public class Solution {

    public static void main(String[] args) {
       Scanner in=new Scanner(System.in);
       int n=in.nextInt();
       int[] arr=new int[n];
       for(int i=0;i<n;i++){
           arr[i]=in.nextInt();
       }
       int count=0;
       for(int i=0;i<n;i++){
           int sum=0;
           for(int j=i;j<n;j++){
               sum=sum+arr[j];
               if(sum<0){
                   count++;
               }
           }
       }
       System.out.println(count);
       
    }
}

  • kchidanandam000
     + 0 comments

    not able to understand this question,can any one clarify it

  • abas_aja
     + 0 comments

    Scanner sc=new Scanner(System.in); int jum=sc.nextInt(); int jumtot=0; int count=0; int[] arrJum=new int[jum]; String test=""; for (int i = 0; i < jum; i++) { int val=sc.nextInt(); arrJum[i]=val;

        }


    for (int i = 0; i < arrJum.length; i++) {
        for (int j = i; j < arrJum.length; j++) {
            for (int j2 = i; j2 <= j; j2++) {
                jumtot+=arrJum[j2];

                test=test+String.valueOf(arrJum[j2]);
            }
            if(jumtot<0) count++;
            test="";
            jumtot=0;

        }
    }

    System.out.println(count);