cf-problem-sheet Backend API

[Harsha9554]

This issue is part of the feature #74

here's a simple design for the API call:

API Endpoint:

GET http://localhost:3000/api/cf-problem-sheet

Query Parameters:

• handle (required): Codeforces handle of the user.
• minProblemRating (optional): Minimum problem rating.
• maxProblemRating (optional): Maximum problem rating.
• numberOfPreviousContests (optional): Number of previous contests to consider.

Example Request:

GET http://localhost:3000/api/cf-problem-sheet?handle=harsha9554&minProblemRating=0&maxProblemRating=1400&numberOfPreviousContests=5

Example Response:

{
    "meta": {
        "handle": "harsha9554",
        "minProblemRating": 0,
        "maxProblemRating": 1400,
        "numberOfPreviousContests": 5
    },
    "problems": [
        {
            "contestId": 1903,
            "index": "A",
            "name": "Halloumi Boxes",
            "type": "PROGRAMMING",
            "points": 500,
            "rating": 800,
            "tags": [
                "brute force",
                "greedy",
                "sortings"
            ],
            "verdict": "NONE",
            "URL": "https://codeforces.com/problemset/problem/1903/A"
        },
        {
            "contestId": 1901,
            "index": "A",
            "name": "Line Trip",
            "type": "PROGRAMMING",
            "rating": 800,
            "tags": [
                "greedy",
                "math"
            ],
            "points": 0,
            "verdict": "NONE",
            "URL": "https://codeforces.com/problemset/problem/1901/A"
        },
        {
            "contestId": 1900,
            "index": "A",
            "name": "Cover in Water",
            "type": "PROGRAMMING",
            "points": 500,
            "rating": 800,
            "tags": [
                "constructive algorithms",
                "greedy",
                "implementation",
                "strings"
            ],
            "verdict": "NONE",
            "URL": "https://codeforces.com/problemset/problem/1900/A"
        },
        {
            "contestId": 1900,
            "index": "B",
            "name": "Laura and Operations",
            "type": "PROGRAMMING",
            "points": 1000,
            "rating": 900,
            "tags": [
                "dp",
                "math"
            ],
            "verdict": "NONE",
            "URL": "https://codeforces.com/problemset/problem/1900/B"
        },
        {
            "contestId": 1901,
            "index": "B",
            "name": "Chip and Ribbon",
            "type": "PROGRAMMING",
            "rating": 1100,
            "tags": [
                "greedy",
                "math"
            ],
            "points": 0,
            "verdict": "NONE",
            "URL": "https://codeforces.com/problemset/problem/1901/B"
        },
        {
            "contestId": 1903,
            "index": "B",
            "name": "StORage room",
            "type": "PROGRAMMING",
            "points": 1000,
            "rating": 1200,
            "tags": [
                "bitmasks",
                "brute force",
                "constructive algorithms",
                "greedy"
            ],
            "verdict": "NONE",
            "URL": "https://codeforces.com/problemset/problem/1903/B"
        },
        {
            "contestId": 1900,
            "index": "C",
            "name": "Anji's Binary Tree",
            "type": "PROGRAMMING",
            "points": 1250,
            "rating": 1300,
            "tags": [
                "dfs and similar",
                "dp",
                "trees"
            ],
            "verdict": "NONE",
            "URL": "https://codeforces.com/problemset/problem/1900/C"
        },
        {
            "contestId": 1903,
            "index": "C",
            "name": "Theofanis' Nightmare",
            "type": "PROGRAMMING",
            "points": 1500,
            "rating": 1400,
            "tags": [
                "constructive algorithms",
                "dp",
                "fft",
                "greedy",
                "hashing"
            ],
            "verdict": "NONE",
            "URL": "https://codeforces.com/problemset/problem/1903/C"
        },
        {
            "contestId": 1901,
            "index": "C",
            "name": "Add, Divide and Floor",
            "type": "PROGRAMMING",
            "rating": 1400,
            "tags": [
                "constructive algorithms",
                "greedy",
                "math"
            ],
            "points": 0,
            "verdict": "NONE",
            "URL": "https://codeforces.com/problemset/problem/1901/C"
        }
    ]
}

This design provides a clear structure for the API call, specifying required and optional parameters, along with an example request and response for better understanding. @Jaideep-C

[Jaideep-C]

What happens when minProblemRating is absent?
What value are you choosing?

[Harsha9554]

So, the way I've written the logic is that if you don't pass minProblemRating or the value for minProblemRating is not given by the user the default minProblemRating is 0. @Jaideep-C

[Jaideep-C]

This issue is resolved in #76