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Trang web này hoạt động tốt nhất khi JavaScript được cho phép.
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Tìm kiếm bài tập
Có lời giải
Hiện dạng bài
Nhóm
Tất cả
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Algorithm Design Analysis
Children's Codes
Chưa phân loại
Chúc Mừng Sinh Nhật
Data Structures and Algorithms
EIU Contest
Free Contest
Fun Riddle
Học Sinh Giỏi
Leetcode
Tin học trẻ
Toán Tin Ứng Dụng
Training HSG
Dạng bài
Array
Backtracking
Basic
BFS - Breadth First Search
Biconnected Component
Binary Indexed Tree
Binary Search
Binary Search Tree
Binary Tree
Bit Manipulation
Bitmask
Brainteaser
Bucket Sort
Chưa phân loại
Cobinatorics
Concurrency
Counting
Counting Sort
Data Stream
Database
Design
DFS - Depth First Search
Divide and conquer
Doubly-Linked List
DP Digit
DSU
Dynamic Programming
Enumeration
Euler Tour
Eulerian Circuit
Fenwick Tree
Final
Game Theory
Geometry
Graph
Greedy
Hard
Hash Function
Hash Table
Heap (Priority Queue)
Interactive
Iterator
Line Sweep
Linked List
Math
Matrix
Medium
Memoization
Merge Sort
Minimum Spanning Tree
Monotonic Queue
Monotonic Stack
Number Theory
Ordered Set
Practice
Prefix Sum
Probability and Statistics
Queue
Quickselect
Radix Sort
Randomized
Recursion
Rejection Sampling
Reservoir Sampling
Rolling Hash
Segment Tree
Shell
Shortest Path
Sieve of Eratosthenes
Simulation
Sliding Window
Sorting
Stack
String
String Matching
Strongly Connected Component
Suffix Array
Topological Sort
Tree
Trie
Two Pointer
Union Find
Khoảng điểm
Tìm
Ngẫu nhiên
Những bài tập nổi bật
Building Pyramid
KHUYẾN MÃI CHUYẾN BAY
Nước sinh hoạt
Phần thưởng
ID
Bài
Nhóm
Điểm
% AC
# AC
lixi
Li Xi
Children's Codes
1,00
66,7%
2
water_tank
Water tank
Children's Codes
1,00
100,0%
4
triangle_triplet
Triangle triplet
Children's Codes
1,00
100,0%
1
abundant_number
Abundant number
Children's Codes
1,00
50,0%
1
practice
Practice
Children's Codes
1,00
100,0%
2
meeting_time
Meeting time
Children's Codes
1,00
80,0%
4
agoj_failing_grade
Lấy tín chỉ
Chưa phân loại
1,00
80,4%
44
agoj_tomau
Đếm số cách tô màu (hard)
Chưa phân loại
1,00
0,0%
0
agoj_substring_ab
Đếm xâu AB
Chưa phân loại
1,00
9,5%
4
agoj_knapsack
Knapsack
Chưa phân loại
1,00
6,3%
1
hello_friends
Hello Friends
Children's Codes
1,00
66,7%
6
measure_water
Measure Water
Children's Codes
1,00
66,7%
4
find_largest_brother_number
Find the "largest brother" number
Children's Codes
1,00
66,7%
4
power_hard
Power - Hard
Children's Codes
1,00
22,9%
6
electrical_outlet
Electrical outlet
Children's Codes
1,00
44,4%
3
prime_factorization
Prime Factorization
Children's Codes
1,00
33,3%
2
number_with_four_divisors
Number with four divisors
Children's Codes
1,00
21,4%
2
eiugrdsa2
Tính điểm môn học
Data Structures and Algorithms
1,00
34,5%
12
eihprofit
The highest profitable product
Data Structures and Algorithms
1,00
38,1%
12
eischsh
Ranking
Data Structures and Algorithms
1,00
30,5%
11
eiugrdsa
Excercise grades
Data Structures and Algorithms
1,00
54,3%
10
eigradu
Graduation
Data Structures and Algorithms
1,00
33,7%
9
frog_and_stones
The frog and Stones
Children's Codes
1,00
50,0%
2
overcoming_trials
Overcoming the Trials
Children's Codes
1,00
71,4%
2
smallest_common_divisor
The smallest common divisor greater than 1
Children's Codes
1,00
63,6%
4
query_sum_1
Query Sum - 1
Children's Codes
1,00
22,2%
2
multiplication_table
Multiplication Table
Children's Codes
1,00
100,0%
4
jack_and_stones
Jack and Stones
Children's Codes
1,00
100,0%
3
distinct_numbers
Distinct Numbers
Children's Codes
1,00
44,8%
9
integer_has_sum_equal_n
The integer whose sum of digits equals N
Children's Codes
1,00
55,6%
5
buying_books
Buying Books
Children's Codes
1,00
33,3%
2
transforming_to_a_palindrome
Transforming to a Palindrome
Children's Codes
1,00
33,3%
3
sum_of_subarray_less_than_x
Sum of subarray less than X
Children's Codes
1,00
40,0%
2
missing_number
Missing Number
Children's Codes
1,00
53,8%
8
sum_of_k_numbers
Sum of K consecutive numbers
Children's Codes
1,00
53,8%
6
easy_longest_increasing_sub
The longest increasing subsequence (easy version)
Children's Codes
1,00
27,6%
4
transform_number
Transform the number
Children's Codes
1,00
50,0%
4
fine_numbers_divisible_by_3
Find the numbers divisible by 3 in the range
Children's Codes
1,00
23,5%
4
compress_a_string
Compress a string
Children's Codes
1,00
80,0%
4
counting_student_pairs
Counting Student Pairs
Children's Codes
1,00
33,3%
3
league_of_legends
League of Legends
Children's Codes
1,00
50,0%
3
beauty_value
The beauty value
Children's Codes
1,00
28,6%
4
fibonacci
Fibonacci
Children's Codes
1,00
33,3%
3
pairs_of_equal_numbers
Count pairs of equal numbers
Children's Codes
1,00
66,7%
4
find_n_in_sequence
Find N in a special sequence
Children's Codes
1,00
54,5%
5
count_pair
Count Pair Numbers
Children's Codes
1,00
38,5%
5
abs_of_2_large_numbers
Absolute value of 2 large integers
Children's Codes
1,00
60,0%
5
frequency
Frequency
Children's Codes
1,00
50,0%
7
sum_of_2_large_numbers
Sum of 2 large numbers
Children's Codes
1,00
41,2%
5
remove_spaces
Remove Spaces
Children's Codes
1,00
100,0%
8
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