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How to ask for help on a problem
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Here are some general guidelines for how to effectively ask for help on the Forum: Basic Requirements Include a link to the problem. For problems that that can be found within the guide, just include the internal Gui…

1 16725 December 30, 2020
Welcome to the USACO Forum!
1 6942 November 19, 2020
Need help understand the full solution for problem #3 Purchasing Milk
Problems and Contests
3 29 March 5, 2026
CSES: All Letter Subgrid Count I
Problems and Contests
9 100 March 3, 2026
DNC DP + Mo's at the same time? [Advanced]
Problems and Contests
2 68 March 3, 2026
Angry Cows - Gold January 2016 Problem 1
5 973 February 23, 2026
Explanation for subtask #2 in Bronze P3 (2nd contest, 2026)
Problems and Contests
3 170 February 22, 2026
Looking for Codeforces and USACO study mate
General Questions
6 389 February 22, 2026
How can i reach GRAND MASTER on Codeforce
Resources & Problemsets
1 153 February 22, 2026
Division update in USACO Jan contest
General Questions
2 170 February 19, 2026
Prefix Sum Section
General Questions
2 149 February 18, 2026
Confusion in Completeness of Solution for Platinum 2017 P1: Why Did the Cow Cross the Road (Mincross)
Problems and Contests
2 172 February 17, 2026
IOI 2013 Dreaming Solution
Problems and Contests
4 130 February 15, 2026
Cpi tournament registration error
General Questions
2 112 February 14, 2026
Usaco score unable to show
5 185 February 13, 2026
Issue in 2017 Gold Problem 3 Modern Art 2 Problem Statement / Official Solution
Problems and Contests
4 147 February 12, 2026
does leaving EGOI eligible: blank cause some problem?
General Questions
1 134 February 11, 2026
How can I learn everything in two weeks before the next competition?
General Questions
1 149 February 10, 2026
Can anyone help me with this problem? I have been trying since yesterday
Problems and Contests
0 121 February 8, 2026
(resolved )2025 silver open problem 3 ski slope fails for all but test case
Problems and Contests
2 682 February 8, 2026
What counts as a template in VS code?
Problems and Contests
1 132 February 7, 2026
How Long Do I Spend Per Problem
General Questions
2 329 February 1, 2026
[Silver] 2D Conveyor Belt Debugging
Debugging Help
2 444 January 30, 2026
USACO 2022 Dec Silver 2. Circular Barn: May you help me understand this test case?
Problems and Contests
2 256 January 28, 2026
USACO Guide IDE
3 452 January 27, 2026
Waiting for available grading server issue
Site Feedback
4 268 January 26, 2026
Distinct Values Subarrays
Problems and Contests
2 243 January 22, 2026
Assisting with 868A-Bark To Unlock
Problems and Contests
1 503 January 21, 2026
Need help why my approach fails for USACO countinf liars problem
Problems and Contests
1 511 January 21, 2026
Help with debugging C++ code for Silver Diamond Collector
Debugging Help
1 304 January 20, 2026