练51.1 向量点积计算

Status	Submit By	Time	Memory	Language	Code	Submit At
AC	johnli	25ms	552 KiB	C++20(O2)	357 Bytes	2025-9-21 9:07:30
AC	moonfu	25ms	560 KiB	C++20(O2)	266 Bytes	2025-9-13 22:11:15
AC	hankli	26ms	552 KiB	C++20	586 Bytes	2025-9-13 14:04:49
AC	georgehuang	26ms	560 KiB	C++98	339 Bytes	2025-9-14 11:03:56
AC	xianyinli	26ms	564 KiB	C++20(O2)	379 Bytes	2025-11-29 11:29:23
AC	clarkzhou	26ms	556 KiB	C++20(O2)	375 Bytes	2025-9-13 21:27:27