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Copy pathMaxSpanExample.java
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49 lines (36 loc) · 1.34 KB
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import java.util.HashMap;
public class MaxSpanExample {
public static void main(String[] args) {
System.out.println(maxSpan(new int[] {1, 2, 1, 1, 3}));
System.out.println(maxSpan(new int[] {1, 4, 2, 1, 4, 1, 4}));
System.out.println(maxSpan(new int[] {1, 4, 2, 1, 4, 4, 4}));
System.out.println(maxSpan(new int[] {3, 3, 3}));
System.out.println(maxSpan(new int[] {3, 9, 3}));
System.out.println(maxSpan(new int[] {3, 9, 9}));
System.out.println(maxSpan(new int[] {3, 9}));
System.out.println(maxSpan(new int[] {3, 3}));
System.out.println(maxSpan(new int[] {}));
System.out.println(maxSpan(new int[] {1}));
}
public static int maxSpan(int[] nums) {
HashMap<String, String> map = new HashMap<String, String>();
int maxspan = 1;
if (nums.length == 0 ){
maxspan = 0;
} else {
for (int i=0; i < nums.length; i++) {
if (!map.containsKey(String.valueOf(nums[i]))) {
map.put(String.valueOf(nums[i]), String.valueOf(i) + "_" + String.valueOf(i));
} else {
String value = map.get(String.valueOf(nums[i])).substring(0, 1);
map.put(
String.valueOf(nums[i]),
value + "_" + String.valueOf(i)
);
maxspan = (i + 1) - Integer.parseInt(value);
}
}
}
return maxspan;
}
}