feat: add weekly contest 427 and biweekly contest 145

[yanglbme]

No description provided.

[idoocs]

Images automagically compressed by Calibre's image-actions ✨

Compression reduced images by 83.9%, saving 132.65 KB.

Filename	Before	After	Improvement	Visual comparison
solution/3300-3399/3378.Count Connected Components in LCM Graph/images/example0.png	16.80 KB	7.06 KB	-58.0%	View diff
solution/3300-3399/3378.Count Connected Components in LCM Graph/images/example1.png	21.49 KB	8.86 KB	-58.8%	View diff
solution/3300-3399/3380.Maximum Area Rectangle With Point Constraints I/images/example1.png	20.73 KB	1.64 KB	-92.1%	View diff
solution/3300-3399/3380.Maximum Area Rectangle With Point Constraints I/images/example2.png	17.63 KB	1.51 KB	-91.5%	View diff
solution/3300-3399/3380.Maximum Area Rectangle With Point Constraints I/images/example3.png	21.54 KB	1.61 KB	-92.5%	View diff
solution/3300-3399/3382.Maximum Area Rectangle With Point Constraints II/images/example1.png	20.73 KB	1.64 KB	-92.1%	View diff
solution/3300-3399/3382.Maximum Area Rectangle With Point Constraints II/images/example2.png	17.63 KB	1.51 KB	-91.5%	View diff
solution/3300-3399/3382.Maximum Area Rectangle With Point Constraints II/images/example3.png	21.54 KB	1.61 KB	-92.5%	View diff

2000 images did not require optimisation.