Java Exercises: Find the maximum sum of a contiguous subsequence from a given sequence of numbers
Java Basic: Exercise-223 with Solution
Write a Java program to find the maximum sum of a contiguous subsequence from a given sequence of numbers a1, a2, a3, ... an. A subsequence of one element is also a continuous subsequence.
Input:
You can assume that 1 ≤ n ≤ 5000 and -100000 ≤ ai ≤ 100000.
Input numbers are separated by a space.
Input 0 to exit.
Pictorial Presentation:
Sample Solution:
Java Code:
import java.util.*;
public class Main {
public static void main(String [] args) {
Scanner s = new Scanner(System.in);
System.out.println("How many integers would you like to input?");
int n = s.nextInt();
int ans = -100000;
int acc = 0;
System.out.println("Input the integers:");
for (int i=0;i<n;i++) {
acc += s.nextInt();
ans = Math.max(ans, acc);
if (acc < 0) acc = 0;
}
System.out.println("Maximum sum of the said contiguous subsequence:");
System.out.println(ans);
}
}
Sample Output:
How many integers would you like to input? 5 Input the integers: 25 61 35 42 66 Maximum sum of the said contiguous subsequence: 229
Flowchart:
Java Code Editor:
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Previous: Write a Java program to test whether two lines PQ and RS are parallel. The four points are P(x1, y1), Q(x2, y2), R(x3, y3), S(x4, y4).
Next: There are two circles C1 with radius r1, central coordinate (x1, y1) and C2 with radius r2 and central coordinate (x2, y2)
Write a Java program to test the followings -
"C2 is in C1" if C2 is in C1
"C1 is in C2" if C1 is in C2
"Circumference of C1 and C2 intersect" if circumference of C1 and C2 intersect, and
"C1 and C2 do not overlap" if C1 and C2 do not overlap.
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Java: Tips of the Day
How to sort an ArrayList?
Collections.sort(testList); Collections.reverse(testList);
That will do what you want. Remember to import Collections though!
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