Update README.md: Revise problem identifiers, solutions, and problem descriptions for clarity and accuracy

README.md

@@ -27,33 +27,32 @@ This dataset contains the 6 problems from the 2025 International Mathematical Ol
 ## Dataset Structure
 
 Each example contains:
-- `url`: Problem identifier (e.g., "2025-imo-p1")
+- `id`: Problem identifier (e.g., "2025-imo-p1")
 - `problem`: The problem statement with LaTeX mathematical notation
-- `answer`: The solution (currently set to "N/A")
+- `solution`: The solution (currently set to null)
 
 ## Problem Types
 
 The dataset includes problems covering various mathematical areas:
 
 1. **Problem 1**: Combinatorial geometry (sunny lines)
-2. **Problem 2**: Functional equations
-3. **Problem 3**: Number theory (perfect squares)
-4. **Problem 4**: Combinatorial game theory
-5. **Problem 5**: Number theory (primitive sets)
-6. **Problem 6**: Euclidean geometry
+2. **Problem 2**: Euclidean geometry (circles and triangles)
+3. **Problem 3**: Number theory (bonza functions)
+4. **Problem 4**: Number theory (proper divisors and sequences)
+5. **Problem 5**: Game theory (inekoalaty game)
+6. **Problem 6**: Combinatorial geometry (grid tiling)
 
 ## Mathematical Notation
 
 Mathematical expressions are formatted using LaTeX:
 - Variables and expressions: `$x$`, `$n \geq 3$`
-- Display equations: `$$f(x^3 + y^3) = f(x + y)(x^2 - xy + y^2)$$`
-- Sets: `$\mathbb{R}$`, `$S$`
-- Special formatting: *sunny*, *primitive*
+- Display equations: `$$f(a) \text{ divides } b^a - f(b)^{f(a)}$$`
+- Sets: `$\mathbb{N}$`, `$\mathbb{R}$`
+- Special formatting: *sunny*, *bonza*, *proper divisor*, *inekoalaty game*
 
 ## Files
 
 - `imo_2025.json`: Full dataset in JSON format
-- `imo_2025.jsonl`: Dataset in JSONL format (one problem per line)
 - `README.md`: This file
 
 ## Usage
@@ -66,12 +65,12 @@ dataset = load_dataset("lmms-lab/imo-2025")
 
 # Access individual problems
 for problem in dataset['train']:
-    print(f"Problem: {problem['url']}")
+    print(f"Problem: {problem['id']}")
     print(f"Statement: {problem['problem']}")
     print()
 ```
 
-Or load directly from JSON/JSONL:
+Or load directly from JSON:
 
 ```python
 import json
@@ -80,11 +79,12 @@ import json
 with open("imo_2025.json", "r") as f:
     problems = json.load(f)
 
-# Or load from JSONL
-problems = []
-with open("imo_2025.jsonl", "r") as f:
-    for line in f:
-        problems.append(json.loads(line))
+# Access problems
+for problem in problems:
+    print(f"ID: {problem['id']}")
+    print(f"Problem: {problem['problem']}")
+    print(f"Solution: {problem['solution']}")
+    print()
 ```
 
 ## Citation
@@ -103,7 +103,7 @@ If you use this dataset in your research, please cite:
 ## Source
 
 Problems are from the 2025 International Mathematical Olympiad.
-Original source: https://artofproblemsolving.com/wiki/index.php/2025_IMO_Problems
+Original source: https://www.imo-official.org/problems.aspx
 
 ## License