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qoj6344. The Best Problem of 2021
如果给出的线性基不是最小的,那么无解。 考虑简单转化一下问题。先把线性基消元,求出 $X$ 在线性基中的 $\text{Rank}$,再判一下全选是否无解。令 $X\to \text{Rank}(X)$,问题可以转化为:在 ${0,1,..,X}$ 的子集中选若干个数,使得子集线性基满秩(即秩等于 ......
7 Best Practice Tips for PostgreSQL Bulk Data Loading
7 Best Practice Tips for PostgreSQL Bulk Data Loading February 19, 2023 Sometimes, PostgreSQL databases need to import large quantities of data in a s ......
《yolov5 将训练的best.pt 转成onnx再转成rknn部署到rv1109》
1.在yolov5上将pt 转 onnx 首先将之前训练好的best.pt放到yolov5目录下 python export.py --weights best.pt --img 640 --batch 1 --include onnx 可以看到生成了best.pt ......
Graphs with Python: Overview and Best Libraries
Graphs with Python: Overview and Best Libraries Graph analysis, interactive visualizations, and graph machine learning A graph is a relatively old mat ......
SEE 08 Best alternative & economic life
Best alternative & economic life 8.1 Proposal Relationships Independent proposal & dependent proposal Forms of dependency Co-dependent. Mutually exclu ......