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DispatchCandy.java
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68 lines (59 loc) · 1.41 KB
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package codingInterview;
public class DispatchCandy {
public static void main(String[] args) {
// TODO Auto-generated method stub
int[] children = { 7, 6, 5, 2, 3, 4, 7, 6, 9 };
int total = dispatch(children);
System.out.println(total);
}
private static int dispatch(int[] arr) {
// TODO Auto-generated method stub
if (arr == null || arr.length == 0) {
return -1;
}
int[] candy = new int[arr.length];
for (int i = 0; i < arr.length; i++) {
if (i == 0) {
candy[i] = 1;
} else if (arr[i] > arr[i - 1]) {
candy[i] = candy[i - 1] + 1;
} else {
candy[i] = 1;
}
}
for (int i = arr.length - 1; i > 0; i--) {
if (arr[i - 1] > arr[i] && candy[i - 1] <= candy[i]) {
candy[i - 1] = candy[i] + 1;
}
}
printArray(arr);
printArray(candy);
return sum(candy);
}
private static int sum(int[] arr) {
// TODO Auto-generated method stub
if (arr == null || arr.length == 0) {
System.out.println("invalid array");
return -1;
}
int sum = 0;
for (int i = 0; i < arr.length; i++) {
sum += arr[i];
}
return sum;
}
private static void printArray(int[] arr) {
// TODO Auto-generated method stub
if (arr == null || arr.length == 0) {
System.out.println("invalid array");
return;
}
for (int i = 0; i < arr.length; i++) {
if (i == arr.length - 1) {
System.out.println(arr[i]);
} else {
System.out.print(arr[i] + ", ");
}
}
}
}