klarkxy 2a41341e51 feat(problemset): move hardness filter to right side and improve UX
- Relocate hardness dropdown from left to right side of filter controls
- Change form submission behavior to update URL parameters directly
- Preserve selected hardness value on page reload
- Remove page parameter when hardness changes to reset pagination
- Improve visual alignment and spacing in filter interface
2026-03-13 15:25:34 +08:00
2024-11-29 16:23:01 +08:00
2024-10-10 12:56:56 +08:00
2024-10-10 12:56:56 +08:00
2024-10-10 14:37:39 +08:00
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50 MiB
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