同行列对角线的格 - Problem Statistics - Hydro

Status	Submit By	Time	Memory	Language	Code	Submit At
AC	admin	19ms	20.4 MiB	C++14	1.1 KiB	2026-9-3 15:58:06

ID

2258

Time

1000ms

Memory

256MiB

Difficulty

10

Tags

入门

# Submissions

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1

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