Problem list

ID Problem Category ▴ Points % AC # AC
kmp_cpic Dư ảnh thời gian Educational 0.01 4.0% 3
sqrt_i Du lịch Educational 1.00 40.2% 16
sqrt2_a Dynamic Connectivity Educational 0.50 18.4% 62
secondthread_tree_diameter Dynamic Diameter Educational 0.50 37.5% 210
backtrack_c Educational Backtracking: Bể chứa nước Educational 0.20 23.1% 90
backtrack_e Educational Backtracking: Biểu thức Educational 0.50 16.2% 113
backtrack_i Educational Backtracking: Két sắt Educational 0.20 29.6% 53
backtrack_h Educational Backtracking: Số ước số Educational 0.60 14.1% 94
backtrack_b Educational Backtracking: Tháp Hà Nội 2 Educational 0.10 33.3% 123
backtrack_d Educational Backtracking: Xâu đầy đủ Educational 0.10 24.2% 185
backtrack_g Educational Backtracking: Xếp hình Educational 0.40 8.1% 21
backtrack_f Educational Backtracking: Đếm dãy GCD Educational 0.30 16.5% 66
backtrack_a Educational Backtracking: Đi dạo Educational 0.60 5.1% 43
backtrack_j Educational Backtracking: Điền chữ L Educational 0.30 17.0% 61
backtrack_k Educational Backtracking: Đổi dấu Educational 0.20 53.6% 100
segtree_itds1 Educational Segment Tree Contest - ITDS1 Educational 0.40 16.6% 1040
segtree_itds2 Educational Segment Tree Contest - ITDS2 Educational 1.90 6.2% 3
segtree_itez1 Educational Segment Tree Contest - ITEZ1 Educational 0.10 45.6% 2276
segtree_itez2 Educational Segment Tree Contest - ITEZ2 Educational 0.10 47.5% 2262
segtree_itladder Educational Segment Tree Contest - ITLADDER Educational 0.50 22.3% 605
segtree_itlazy Educational Segment Tree Contest - ITLAZY Educational 0.15 34.4% 1824
segtree_itmed Educational Segment Tree Contest - ITMED Educational 0.15 17.4% 1011
segtree_itmix Educational Segment Tree Contest - ITMIX Educational 0.50 16.0% 331
segtree_itstr Educational Segment Tree Contest - ITSTR Educational 0.50 18.8% 146
segtree_itteq1 Educational Segment Tree Contest - ITTEQ1 Educational 1.60 18.9% 65
segtree_itx2 Educational Segment Tree Contest - ITX2 Educational 1.50 17.2% 8
secondthread_tree_richtree Filthy Rich Trees Educational 0.70 35.0% 95
geo_j Giao điểm hai đường thẳng Educational 0.20 46.8% 192
geo_a Góc của điểm trong hệ tọa độ cực Educational 0.10 13.4% 367
geo_b Góc giữa hai vector Educational 0.10 25.0% 300
geo_n Hai đường thẳng song song với đường thẳng cho trước Educational 0.25 27.8% 89
sqrt_d Hamilton Path Educational 0.20 39.0% 253
sqrt_f Inversion Counting Educational 0.70 14.9% 84
geo_s Khoảng cách giữa hai tia Educational 0.30 5.3% 38
geo_i Khoảng cách giữa hai đoạn thẳng Educational 0.25 15.6% 65
geo_h Khoảng cách từ điểm đến một đoạn thẳng Educational 0.20 33.2% 152
geo_g Khoảng cách từ điểm đến tia Educational 0.20 24.7% 137
geo_e Khoảng cách từ điểm đến đường thẳng Educational 0.10 28.9% 335
geo_f Khoảng cách từ điểm đến đường thẳng 2 Educational 0.10 46.9% 224
geo_r Kiểm tra hai điểm khác phía với đường thẳng Educational 0.15 55.1% 155
geo_p Kiểm tra điểm thuộc tia Educational 0.15 17.5% 115
geo_q Kiểm tra điểm thuộc đoạn thẳng Educational 0.15 22.7% 163
geo_o Kiểm tra điểm thuộc đường thẳng Educational 0.10 77.0% 322
kmp_giap KMP++ Educational 0.01 30.3% 6
kmp_friendly kmpfriendly Educational 0.01 13.5% 16
trie_kxor KXOR Educational 0.01 16.0% 37
trie_shortcode Lặp tên Educational 0.01 6.2% 15
sqrt2_b Line Queries Educational 0.80 15.5% 30
errichto_matexp_cntpath Matrix Exponentiation - Count path Educational 0.40 59.6% 383
errichto_matexp_cntpath2 Matrix Exponentiation - Count paths queries Educational 1.30 28.3% 135