Problem list

Problem search

Point range
Go Random

Hot problems

ID Problem Category Points % AC ▾ # AC
fcb014_buying Beginner Free Contest 14 - BUYING Free Contest 0.23 89.3% 1246
fct007_buying Free Contest Testing Round 7 - BUYING Free Contest 0.50 88.1% 1151
icpc20_regional_f ICPC 2020 vòng Regional - F: Final Exam ICPC 0.10 86.4% 221
fcb026_multab Beginner Free Contest 26 - MULTAB Free Contest 0.10 86.2% 1443
fct020_xortable Free Contest Testing Round 20 - XORTABLE Free Contest 0.50 84.2% 409
mkokos KOKOS OI Style 1.00 83.7% 31
vnbrack Dãy ngoặc bậc P OI Style 1.82 83.3% 5
fct017_dsum Free Contest Testing Round 17 - DSUM Free Contest 0.06 82.2% 1085
vmscale VM 13 Bài 15 - Chiếc cân kỳ diệu VNOI Marathon 1.82 81.8% 17
makhoa3 VM 11 Bài 06 - Mã khóa bí mật 3 VNOI Marathon 0.50 81.3% 13
fc084_dna Free Contest 84 - DNA Free Contest 0.50 81.2% 414
coci1617_r5_tuna COCI 2016/2017 - Contest 5 - Tuna COCI 0.20 81.2% 378
fc016_sibice Free Contest 16 - SIBICE Free Contest 0.50 81.0% 558
fc009_arbore Free Contest 9 - ARBORE Free Contest 0.50 80.8% 37
fcb025_gfriend Beginner Free Contest 25 - GFRIEND Free Contest 0.10 80.6% 886
coci1617_r4_bridz COCI 2016/2017 - Contest 4 - Bridž COCI 0.15 80.4% 477
fcb017_cgame Beginner Free Contest 17 - CGAME Free Contest 0.10 80.4% 1029
fcb008_avg3num Beginner Free Contest 8 - AVG3NUM Free Contest 0.05 80.3% 2368
lstar Sao may mắn OI Style 0.92 80.0% 12
fc002_izbori Free Contest 2 - IZBORI Free Contest 0.50 80.0% 4
fcb022_inv2x Beginner Free Contest 22 - INV2X Free Contest 0.10 79.7% 577
fcb046_fences Beginner Free Contest 46 - FENCES Free Contest 0.20 79.7% 1500
fct008_avg3num Free Contest Testing Round 8 - AVG3NUM Free Contest 0.11 79.6% 880
fct014_minrect Free Contest Testing Round 14 - MINRECT Free Contest 0.13 79.4% 1023
mmatrix SHIFT Operator on Matrix ICPC 0.49 79.3% 40
walk Dạo chơi quanh nhà ICPC 0.67 78.6% 21
coci1617_r1_tarifa COCI 2016/2017 - Contest 1 - Tarifa COCI 0.20 78.6% 642
fcb013_balloon Beginner Free Contest 13 - BALLOON Free Contest 0.11 78.1% 1693
fct026_inv2x Free Contest Testing Round 26 - INV2X Free Contest 0.70 77.5% 1245
fc041_medicine Free Contest 41 - MEDICINE Free Contest 0.16 77.2% 324
fct034_sibice Free Contest Testing Round 34 - SIBICE Free Contest 0.70 76.7% 844
bedao_g04_nand Bedao Grand Contest 04 - NAND Bedao Contest 0.90 76.7% 20
krus Kruska ICPC 1.00 76.5% 26
traka TRAKA OI Style 0.88 76.5% 25
hello22_jigsaw Bedao L-JIGSAW Hay Không? Hay Hay Bedao Contest 1.80 76.5% 142
geo_o Kiểm tra điểm thuộc đường thẳng Educational 0.10 76.0% 561
fct041_maxdiff Free Contest Testing Round 41 - MAXDIFF Free Contest 0.50 76.0% 718
fcb047_five Beginner Free Contest 47 - FIVE Free Contest 0.20 75.9% 916
fc021_scanner Free Contest 21 - SCANNER Free Contest 0.50 75.6% 26
fct028_arbore Free Contest Testing Round 28 - ARBORE Free Contest 0.70 75.6% 54
fct050_sumpart Free Contest Testing Round 50 - SUMPART Free Contest 0.70 75.4% 1261
cstars Đếm sao OI Style 1.01 75.0% 3
nkrtest Thử nghiệm Robot OI Style 1.43 75.0% 2
voboard VO 13 Bài 3 - Truyền thuyết ở vương quốc Đồng Dư K VNOI Online 1.43 75.0% 3
fcb034_abcsum Beginner Free Contest 34 - ABCSUM Free Contest 0.10 74.9% 1341
fct010_product Free Contest Testing Round 10 - PRODUCT Free Contest 0.16 74.7% 754
coci1920_r5_emacs COCI 2019/2020 - Contest 5 - Emacs COCI 0.20 74.4% 450
pkadkp PKADKP ICPC 0.61 74.2% 20
tablic Tablica ICPC 0.34 74.2% 16
fc051_lamp Free Contest 51 - LAMP Free Contest 0.15 74.2% 281