kattis.com

Google calendar
auto updating
no account rating
no problem rating
no upsolving
118 contest(s) 15,723 accounts(s)

Country distribution

N Country Participants
number
1
United States of America 		3444
2
Sweden 		937
3
Canada 		833
4
Denmark 		725
5
Norway 		489
6
Finland 		193
7
Lithuania 		120
8
Estonia 		111
9
Iceland 		111
10
Mexico 		29
more

Most top

N Handle T1 T2 T3 T10
1 Effort Threshold 👆 1 1 · ·
2
NIO girls 		1 · · ·
3
Yidi Zang 		1 · · ·
4
Raphael 		1 · · ·
5
Just Balloons | Nothing 		1 · · ·
6 Robert C 1 · · ·
7 Kelly 1 · · ·
8 definitely not alberta sapphire or anything like that 1 · · ·
9 Stack Underflow 1 · · ·
10 Umich 9 1 · · ·
more

Most participations

N Handle Contests
count
1 Effort Threshold 👆 2
2 Team 0 2
3 UMD rED 2
4 Princeton - We Play with Mud in the Northeast 2
5 Waterloo Gold 2
6 kevin 2
7 mcpqndq 2
8 Harvard Undergraduate Consulting Group 2
9 Niar 2
10 u 2
more

Most recent activity

N Handle Last
activity
1 Niar May 24, 2025
2 Akshar Yeccherla May 24, 2025
3 Sachin Sivakumar May 24, 2025
4 Waterloo Gold May 24, 2025
5 rqi May 24, 2025
6 vkgainz May 24, 2025
7 aim for last place May 24, 2025
8 XiaoNanNiang May 24, 2025
9 UofT May 24, 2025
10 z May 24, 2025
more

Most solved problems

N Handle Total
solved
1 UIUC B 14
2 MIT: Mex Foundation 14
3 cout << 1/0 << endl; 14
4 Waterloo Black 14
5 Waterloo Gold 14
6 Longest SubRoutine 14
7 Alberta Aqua 14
8
UCLA Tortellini 		14
9
UT Austin Fan Club 		14
10 pocpocpoc 14
more

Most first accepted

N Handle First
accepted
1 Alberta Aqua 9
2
Omogen Heap 		8
3 Sapphire has no Answers 8
4 pocpocpoc 8
5 definitely not alberta sapphire or anything like that 7
6 ((+)(((+)s)m)j) 7
7 Unbengable 7
8 Alberta School of Mines team 2 7
9 Alberta Gray 6
10 Codeswamp 6
more

Most points

N Handle Total
points
1 University of Texas at Austin 600.00
2 University of Illinois at Urbana–Champaign 600.00
3 Swarthmore College 600.00
4 Princeton University 600.00
5 Massachusetts Institute of Technology 600.00
6 UCSD Fallen Star 597.99
7 MIT Isn't Training 597.77
8 Stanford Cardinal 594.52
9 Waterloo Black 543.17
10 North Carolina State University 500.00
more

Problems

Date Name
July 18, 2025 A String Problem
July 18, 2025 Currents
July 18, 2025 IMO
July 18, 2025 Laser Strike
July 16, 2025 Gift Boxes
July 16, 2025 Dark Ride
July 16, 2025 Monster-Go
July 16, 2025 Wind Turbines
May 24, 2025 Random Permutation
May 24, 2025 Mountain
more

Past contests

End Time Contest
July 19, 2025 European Girls' Olympiad in Informatics 2025 - Day 2 mirror
July 19, 2025 European Girls' Olympiad in Informatics 2025 - Day 1 mirror
July 18, 2025 European Girls' Olympiad in Informatics 2025 - Day 2
July 16, 2025 European Girls' Olympiad in Informatics 2025 - Day 1
May 31, 2025 NAPC 2025 day 2 upsolving
May 30, 2025 NAPC 2025 day 1 upsolving
May 30, 2025 NAPC 2025 day 1 upsolving
May 24, 2025 NAPC 2025 day 2
May 23, 2025 NAPC 2025 day 1
March 15, 2025 University of Alberta Programming Contest 2025 - Open
more