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Top Rated Accepted
#292: nanika
Accepted: : 251
#292: ucup-team3515
Accepted: : 251
#296: IllusionaryDominance
Accepted: : 249
#296: Lynia
Accepted: : 249
#296: tzl_Dedicatus545
Accepted: : 249
忙碌着 无为着 继续
#299: tricyzhkx
Accepted: : 248
#299: ucup-team180
Accepted: : 248
#301: huaxiamengjin
Accepted: : 247
#301: travel
Accepted: : 247
#301: ucup-team2307
Accepted: : 247
#301: XY_Eleven
Accepted: : 247
#305: Acoipp
Accepted: : 246
#305: ucup-team2172
Accepted: : 246
法克皮百吨
#307: 617lyq
Accepted: : 245
#307: ucup-team1293
Accepted: : 245
#309: ahihi1234
Accepted: : 244
#309: KobicGend
Accepted: : 244
#311: jrjyy
Accepted: : 243
#311: Register
Accepted: : 243
#311: ucup-team2045
Accepted: : 243
#314: lunchbox
Accepted: : 242
#314: ushg8877
Accepted: : 242
#316: std
Accepted: : 241
哼
#316: wrhaco
Accepted: : 241
#318: carrotqq
Accepted: : 240
#318: nathan4690
Accepted: : 240
#318: piggy123
Accepted: : 240
#321: ucup-team267
Accepted: : 239
哈姆。
#321: ucup-team7870
Accepted: : 239
已完成今日我对着铁质的凳子踢了五下然后把那堆钢栏杆在地上滚了一下然后把椅子夹在了篮筐上大学习
#323: MarSer020
Accepted: : 236
#323: ucup-team135
Accepted: : 236
#325: iee
Accepted: : 235
#325: jqh333
Accepted: : 235
#327: deerdoomer
Accepted: : 234
#327: Diaosi
Accepted: : 234
#327: ETK
Accepted: : 234
「我是星 我愿投身前途未卜的群星，为梦长明。」
#327: RDFZchenyy
Accepted: : 234
悟已往之不谏，知来者之可追。实迷途其未远，觉今是而昨非。
#327: Zero_OP
Accepted: : 234
#332: 2021cyq
Accepted: : 233
#332: liuziao
Accepted: : 233
#332: ucup-team7334
Accepted: : 233
#332: wsxcb
Accepted: : 233
#336: moriko
Accepted: : 232
#336: ucup-team4269
Accepted: : 232
#338: ucup-team3586
Accepted: : 231
#338: ucup-team5984
Accepted: : 231
#338: ucup-team6748
Accepted: : 231
#341: MatrixGroup
Accepted: : 230
どうか どうか どうか | 可是真实的人生，必定是单调、残酷，而缺乏色彩的
#341: ucup-team5008
Accepted: : 230
#341: ucup-team7754
Accepted: : 230
#344: qzez
Accepted: : 228
对于无向图的情况，基尔霍夫矩阵为 $K=D-A$，其中 $D$ 为度数矩阵，$A$ 为邻接矩阵。树的个数为去掉 $K$ 一行一列的行列式的值。对于外向树，$D$ 为每个点的入边度数和，内向树相反。此时需要去掉根所在行列。BEST 定理：有向欧拉图的欧拉回路个数为：内向树个数乘以 $\prod\limits_{i=1}^{n}deg_i$，其中 $deg_i$ 为 $i$ 号点的度数。
#345: Calculatelove
Accepted: : 227
Love all my perfect imperfections.
#345: cmll02
Accepted: : 227
#345: sleep
Accepted: : 227
#348: chenshi
Accepted: : 226
#349: Journey_to_Edge_Ring
Accepted: : 225
ECUST_飞向边界环 (est. 2025)Member:hatertumu1thuguanfu
#349: Sai_tqwq
Accepted: : 225
#351: feecle6418
Accepted: : 224
gyh ak ioi
#351: luanyanjia
Accepted: : 224
#351: Sktn0089
Accepted: : 224
#351: SoyTony
Accepted: : 224
真実はいつもひとつ
#351: ucup-team4464
Accepted: : 224
#356: 8BQube
Accepted: : 223
#356: DinoHadzic
Accepted: : 223
#356: ucup-team2819
Accepted: : 223
#359: intiger
Accepted: : 221
#360: Prime
Accepted: : 220
#360: ucup-team7683
Accepted: : 220
一直游到海水变蓝
#362: binminh01
Accepted: : 219
#362: masterhuang
Accepted: : 219
不要逃避自己的命运
#362: ucup-team4478
Accepted: : 219
#362: xlwang
Accepted: : 219
#366: Arkweedy
Accepted: : 217
#366: houzhiyuan
Accepted: : 217
#366: shinonome_ena
Accepted: : 217
#366: ucup-team6852
Accepted: : 217
#370: ucup-team7713
Accepted: : 216
#370: ucup-team7832
Accepted: : 216
#370: ucup-team870
Accepted: : 216
#370: xDarkbluex
Accepted: : 216
#374: gg_gong
Accepted: : 215
Who am I? Why am I here?
#374: jxy2012
Accepted: : 215
#374: ucup-team3862
Accepted: : 215
#374: yangjiaxi
Accepted: : 215
#378: nhuang685
Accepted: : 214
#378: ucup-team580
Accepted: : 214
#378: ucup-team7582
Accepted: : 214
#381: ucup-team3790
Accepted: : 213
#382: ucup-team073
Accepted: : 212
#382: ucup-team4938
Accepted: : 212
乌龟风扇俱乐部
#384: lazy1105
Accepted: : 211
ぼっち・ざ・ろっく！
#384: ucup-team3966
Accepted: : 211
$$\underline{洹}我\underline{达}美\underline{乐}$$
#384: ucup-team7774
Accepted: : 211
#384: Wu_Ren
Accepted: : 211
#388: jiamengtong
Accepted: : 210
#388: Lzy_
Accepted: : 210
#388: ucup-team228
Accepted: : 210
#388: yoy68
Accepted: : 210
#388: yzhang
Accepted: : 210
如果结果不如你所愿，就在尘埃落定前奋力一搏
#393: do_while_true
Accepted: : 209