Problem list

Problem search

Point range
Go Random

Hot problems

ID Problem Category Points % AC # AC ▾
fc020_minlex2 Free Contest 20 - MINLEX2 Free Contest 0.50 17.6% 51
fc035_tetexercise Free Contest 35 - TETEXERCISE Free Contest 0.93 24.1% 51
fcb021_relation Beginner Free Contest 21 - RELATION Free Contest 0.10 47.5% 51
fcb013_bigmod Beginner Free Contest 13 - BIGMOD Free Contest 0.11 7.9% 51
icpc22_mn_e ICPC 2022 miền Nam - E: Sum of Squares ICPC 1.30 64.4% 51
fct039_flip Free Contest Testing Round 39 - FLIP Free Contest 0.70 43.7% 51
icpc24_mt_c ICPC 2024 miền Trung - C: Sum of LCM ICPC 1.00 8.4% 51
c11ant Những con kiến đáng ghét OI Style 1.00 14.0% 50
cnmarble Trò chơi với những viên bi OI Style 0.21 66.0% 50
fc021_scanner Free Contest 21 - SCANNER Free Contest 0.50 75.3% 50
fc035_rational Free Contest 35 - RATIONAL Free Contest 0.97 74.3% 50
fc084_xorpath Free Contest 84 - XORPATH Free Contest 0.50 43.5% 50
fct016_mwpath Free Contest Testing Round 16 - MWPATH Free Contest 1.05 12.1% 50
bedao_g06_frequency Bedao Grand Contest 06 - FREQUENCY Bedao Contest 0.90 19.1% 50
coci1920_r3_grudanje COCI 2019/2020 - Contest 3 - Grudanje COCI 0.40 47.5% 50
fc104_fsum Free Contest 104 - FSUM Free Contest 0.80 54.3% 50
fcb041_base Beginner Free Contest 41 - BASE Free Contest 0.20 10.2% 50
icpc21_regional_c ICPC 2021 vòng Regional - C: Coloring Polygon ICPC 1.50 26.8% 50
icpc22_mn_c ICPC 2022 miền Nam - C: Migration ICPC 1.30 9.1% 50
bedao_m15_2seg Bedao Mini Contest 15 - 2SEG Bedao Contest 0.65 7.0% 50
backtrack_g Educational Backtracking: Xếp hình Educational 0.40 10.3% 50
bedao_g11_fraction Bedao Grand Contest 11 - FRACTION Bedao Contest 0.65 23.0% 50
bedao_g13_f Bedao Grand Contest 13 - MAGICSHOP Bedao Contest 1.50 38.8% 50
fcb054_shadow Beginner Free Contest 54 - SHADOW Free Contest 0.20 25.5% 50
codetour24_f_c Cái cân Hà Nội VNG Code Tour 0.01 21.2% 50
c11star Counting Star OI Style 1.40 11.4% 49
hspc14l Bất lặp ICPC 0.46 20.9% 49
vmtree VM 12 Bài 21 - Cây VNOI Marathon 1.95 15.2% 49
vo17lan VO 17 Bài 2 - Hoa Ngọc Lan VNOI Online 1.00 20.8% 49
vquery VM 14 Bài 01 - Query VNOI Marathon 1.14 28.2% 49
ninjaioi Ninja TST Training 1.00 12.4% 49
fc011_cardrm Free Contest 11 - CARDRM Free Contest 0.50 18.8% 49
fc118_median Free Contest 118 - MEDIAN Free Contest 0.50 40.2% 49
fcb025_spot Beginner Free Contest 25 - SPOT Free Contest 0.10 41.5% 49
fcb028_vacuum Beginner Free Contest 28 - VACUUM Free Contest 0.38 25.1% 49
bedao_g06_spime Bedao Grand Contest 06 - SPIME Bedao Contest 0.90 44.5% 49
coci1920_r2_zvijezda COCI 2019/2020 - Contest 2 - Zvijezda COCI 1.50 41.1% 49
bedao_r09_distinct Bedao Regular Contest 09 - DISTINCT Bedao Contest 1.50 39.3% 49
fc142_functions Free Contest 142 - FUNCTIONS Free Contest 0.70 43.5% 49
fc144_xgift Free Contest 144 - XGIFT Free Contest 0.70 25.4% 49
fcb054_repxor Beginner Free Contest 54 - REPXOR Free Contest 0.20 46.1% 49
olp_sc23_pquery Olympic Sinh Viên 2023 - Siêu cúp - Truy vấn trên dãy hoán vị Olympic Sinh Viên 1.00 3.6% 49
icpc23_regional_m ICPC 2023 vòng Regional - M: Monopoly ICPC 1.00 19.9% 49
bedao_r20_f Bedao Regular Contest 20 - North Pole Bedao Contest 0.90 23.5% 49
icpc24_regional_b ICPC 2024 vòng Regional - B: Bullet Train ICPC 0.80 15.8% 49
hsg_qt_v2_2425_scores Chọn Đội tuyển HSGQG Quảng Trị 2024 - SCORES HSG Tỉnh/Thành phố 0.01 11.7% 49
hinhthoi VM 08 Bài 24 - Hình thoi VNOI Marathon 0.94 20.5% 48
lott Xổ số ICPC 0.32 62.4% 48
lsfight VM 08 Bài 11 - Quyết đấu VNOI Marathon 0.34 16.0% 48
vogame VO 16 Bài 4 - Trò chơi với những viên bi VNOI Online 0.50 42.1% 48