JavaAlgorithms/Dynamic Programming/RodCutting.java
2019-02-23 21:12:08 +08:00

32 lines
836 B
Java

/**
* A Dynamic Programming solution for Rod cutting problem
* Returns the best obtainable price for a rod of
* length n and price[] as prices of different pieces
*
*/
public class RodCutting {
private static int cutRod(int[] price, int n) {
int val[] = new int[n + 1];
val[0] = 0;
for (int i = 1; i <= n; i++) {
int max_val = Integer.MIN_VALUE;
for (int j = 0; j < i; j++)
max_val = Math.max(max_val, price[j] + val[i - j - 1]);
val[i] = max_val;
}
return val[n];
}
// main function to test
public static void main(String args[]) {
int[] arr = new int[]{2, 5, 13, 19, 20};
int size = arr.length;
System.out.println("Maximum Obtainable Value is " +
cutRod(arr, size));
}
}