g0001_0100.s0057_insert_interval.Solution Maven / Gradle / Ivy
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Java-based LeetCode algorithm problem solutions, regularly updated
package g0001_0100.s0057_insert_interval;
// #Medium #Array #2022_02_19_Time_1_ms_(99.15%)_Space_48.4_MB_(6.13%)
import java.util.Arrays;
public class Solution {
public int[][] insert(int[][] intervals, int[] newInterval) {
int n = intervals.length;
int l = 0;
int r = n - 1;
while (l < n && newInterval[0] > intervals[l][1]) {
l++;
}
while (r >= 0 && newInterval[1] < intervals[r][0]) {
r--;
}
int[][] res = new int[l + n - r][2];
for (int i = 0; i < l; i++) {
res[i] = Arrays.copyOf(intervals[i], intervals[i].length);
}
res[l][0] = Math.min(newInterval[0], l == n ? newInterval[0] : intervals[l][0]);
res[l][1] = Math.max(newInterval[1], r == -1 ? newInterval[1] : intervals[r][1]);
for (int i = l + 1, j = r + 1; j < n; i++, j++) {
res[i] = intervals[j];
}
return res;
}
}