图片里面画出来的是啥意思啊
class Solution {
public int[][] merge(int[][] intervals) {
Arrays.sort(intervals, (v1, v2) -> v1[0] - v2[0]);
int[][] res = new int[intervals.length][2];
int idx = -1;
for (int[] interval: intervals) {
if (idx == -1 || interval[0] > res[idx][1]) {
res[++idx] = interval;
} else {
res[idx][1] = Math.max(res[idx][1], interval[1]);
}
}
return Arrays.copyOf(res, idx + 1);
}
}