First attempt to parse content from codeforces

* Test to use request
* Test to parse
* Add content to README

README.md

@@ -1,9 +1,16 @@
-# acmhelper-vscode README
+# ACM HELPER - README
 
-This is the README for your extension "acmhelper-vscode". After writing up a brief description, we recommend including the following sections.
+**ACMHelper** is tool that allow users to solve problems from several online judges easily. This extension contains awesome features powered with Machine Learning.
 
 ## Features
 
+* Contest/Problem parsing
+* Running solution against testcases automatically
+* Add custom testcases easily
+* Smart veredict reporting (OK, WA, RTE, TLE, CE)
+* Stressing solution against brute using a generator (Useful to find corner cases)
+* Automatic generator creation from inputs/outputs structure
+
 Describe specific features of your extension including screenshots of your extension in action. Image paths are relative to this README file.
 
 For example if there is an image subfolder under your extension project workspace:

package-lock.json

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         "safe-buffer": {
             "version": "5.1.2",
             "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.1.2.tgz",
-            "integrity": "sha512-Gd2UZBJDkXlY7GbJxfsE8/nvKkUEU1G38c1siN6QP6a9PT9MmHB8GnpscSmMJSoF8LOIrt8ud/wPtojys4G6+g==",
-            "dev": true
+            "integrity": "sha512-Gd2UZBJDkXlY7GbJxfsE8/nvKkUEU1G38c1siN6QP6a9PT9MmHB8GnpscSmMJSoF8LOIrt8ud/wPtojys4G6+g=="
         },
         "safer-buffer": {
             "version": "2.1.2",
             "resolved": "https://registry.npmjs.org/safer-buffer/-/safer-buffer-2.1.2.tgz",
-            "integrity": "sha512-YZo3K82SD7Riyi0E1EQPojLz7kpepnSQI9IyPbHHg1XXXevb5dJI7tpyN2ADxGcQbHG7vcyRHk0cbwqcQriUtg==",
-            "dev": true
+            "integrity": "sha512-YZo3K82SD7Riyi0E1EQPojLz7kpepnSQI9IyPbHHg1XXXevb5dJI7tpyN2ADxGcQbHG7vcyRHk0cbwqcQriUtg=="
         },
         "semver": {
             "version": "5.6.0",
@@ -1642,7 +1766,6 @@
             "version": "1.1.1",
             "resolved": "http://registry.npmjs.org/string_decoder/-/string_decoder-1.1.1.tgz",
             "integrity": "sha512-n/ShnvDi6FHbbVfviro+WojiFzv+s8MPMHBczVePfUpDJLwoLT0ht1l4YwBCbi8pJAveEEdnkHyPyTP/mzRfwg==",
-            "dev": true,
             "requires": {
                 "safe-buffer": "~5.1.0"
             }
@@ -1662,6 +1785,24 @@
             "integrity": "sha1-U10EXOa2Nj+kARcIRimZXp3zJMc=",
             "dev": true
         },
+        "sync-request": {
+            "version": "6.0.0",
+            "resolved": "https://registry.npmjs.org/sync-request/-/sync-request-6.0.0.tgz",
+            "integrity": "sha512-jGNIAlCi9iU4X3Dm4oQnNQshDD3h0/1A7r79LyqjbjUnj69sX6mShAXlhRXgImsfVKtTcnra1jfzabdZvp+Lmw==",
+            "requires": {
+                "http-response-object": "^3.0.1",
+                "sync-rpc": "^1.2.1",
+                "then-request": "^6.0.0"
+            }
+        },
+        "sync-rpc": {
+            "version": "1.3.4",
+            "resolved": "https://registry.npmjs.org/sync-rpc/-/sync-rpc-1.3.4.tgz",
+            "integrity": "sha512-Iug+t1ICVFenUcTnDu8WXFnT+k8IVoLKGh8VA3eXUtl2Rt9SjKX3YEv33OenABqpTPL9QEaHv1+CNn2LK8vMow==",
+            "requires": {
+                "get-port": "^3.1.0"
+            }
+        },
         "tar": {
             "version": "2.2.1",
             "resolved": "http://registry.npmjs.org/tar/-/tar-2.2.1.tgz",
@@ -1673,6 +1814,24 @@
                 "inherits": "2"
             }
         },
+        "then-request": {
+            "version": "6.0.0",
+            "resolved": "https://registry.npmjs.org/then-request/-/then-request-6.0.0.tgz",
+            "integrity": "sha512-xA+7uEMc+jsQIoyySJ93Ad08Kuqnik7u6jLS5hR91Z3smAoCfL3M8/MqMlobAa9gzBfO9pA88A/AntfepkkMJQ==",
+            "requires": {
+                "@types/concat-stream": "^1.6.0",
+                "@types/form-data": "0.0.33",
+                "@types/node": "^8.0.0",
+                "@types/qs": "^6.2.31",
+                "caseless": "~0.12.0",
+                "concat-stream": "^1.6.0",
+                "form-data": "^2.2.0",
+                "http-basic": "^7.0.0",
+                "http-response-object": "^3.0.1",
+                "promise": "^8.0.0",
+                "qs": "^6.4.0"
+            }
+        },
         "through": {
             "version": "2.3.8",
             "resolved": "http://registry.npmjs.org/through/-/through-2.3.8.tgz",
@@ -1786,6 +1945,11 @@
             "integrity": "sha1-WuaBd/GS1EViadEIr6k/+HQ/T2Q=",
             "dev": true
         },
+        "typedarray": {
+            "version": "0.0.6",
+            "resolved": "https://registry.npmjs.org/typedarray/-/typedarray-0.0.6.tgz",
+            "integrity": "sha1-hnrHTjhkGHsdPUfZlqeOxciDB3c="
+        },
         "typescript": {
             "version": "3.2.2",
             "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.2.2.tgz",
@@ -1830,8 +1994,7 @@
         "util-deprecate": {
             "version": "1.0.2",
             "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
-            "integrity": "sha1-RQ1Nyfpw3nMnYvvS1KKJgUGaDM8=",
-            "dev": true
+            "integrity": "sha1-RQ1Nyfpw3nMnYvvS1KKJgUGaDM8="
         },
         "uuid": {
             "version": "3.3.2",

package.json

@@ -69,5 +69,8 @@
         "tslint": "^5.8.0",
         "@types/node": "^8.10.25",
         "@types/mocha": "^2.2.42"
+    },
+    "dependencies": {
+        "sync-request": "^6.0.0"
     }
 }

src/conn.ts

@@ -1,4 +1,5 @@
 import { SiteDescription, Contest, Problem } from "./types";
+import { CODEFORCES } from "./parsers/codeforces";
 
 /**
  * Register a new site creating an entry in this dictionary.
@@ -26,16 +27,7 @@ export const SITES: SiteDescription[] = [
         }
     ),
 
-    new SiteDescription(
-        "codeforces",
-        "codeforces.com",
-        contestId => {
-            return new Contest();
-        },
-        problemId => {
-            return new Problem();
-        },
-    ),
+    CODEFORCES,
 ];
 
 export function getSite(site: string): SiteDescription  {

src/core.ts

@@ -206,8 +206,6 @@ export function testSolution(path: string){
     let testcasesId = testcasesName(path);
     testcasesId.sort(); // Proccess all testcases in sorted order
 
-    console.log("Test Solution at: ", testcasesId);
-
     let results = [];
     let fail = undefined;
 

src/extension.ts

@@ -9,6 +9,7 @@ import { newContestFromId, testSolution, veredictName, stressSolution, upgradeAr
 import { Veredict } from './types';
 
 /**
+ * TODO: Add How to Use (in the README.) adding own template etc...
  * TODO: Allow custom checker easily
  * TODO: Add several checkers and try to infer which is the correct! [*]
  * TODO: Smart ID detection while parsing ContestId & ProblemId [*]
@@ -17,6 +18,12 @@ import { Veredict } from './types';
  * TODO: Implement parser for codeforces to test on real cases
  * TODO: Learn how to move static files from `src` to `out`.
  * TODO: Allow programming in other languages than c++
+ * TODO: Run testcases in sorted order
+ * TODO: How to use behind proxy
+ *
+ * TODO: When Runtime Error happens show as much output as possible and display the error in the console
+ * TODO: If a solution is run whith an open test, run that test first.
+ * TODO: Figure out something for interactive problems.
  *
  * [*] Machine Learning?
  */

src/gwen.ts

@@ -1,3 +1,3 @@
 export function create(inputs: string[], outputs: string[]) {
-    return 'print("Hello world!")';
+    return 'import random\nprint(random.randint(1, 100))\n';
 }

src/parsers/codeforces.ts

@@ -0,0 +1,85 @@
+import { SiteDescription, Contest, Problem } from "../types";
+
+// TODO: Use sync requests
+const request = require('sync-request');
+
+/**
+ * contestId: ${contest}
+ * http://codeforces.com/contest/${contest}/
+ *
+ * Example:
+ * http://codeforces.com/contest/1081/
+ */
+function parseContest(contestId: string | number) {
+    let problemsId: string[] = [];
+
+    let problems: Problem[] = [];
+
+    problemsId.forEach(problemId => {
+        let prob = parseProblem(`${contestId}-${problemId}`);
+        problems.push(prob);
+    });
+
+    return new Contest(problems);
+}
+
+/**
+ * problemId: ${contest}-${problem}
+ * http://codeforces.com/contest/${contest}/problem/${problem}
+ *
+ * Example:
+ * http://codeforces.com/contest/1081/problem/E
+ */
+function parseProblem(problemId: string) {
+    let data = problemId.split('-');
+    let contest = data[0];
+    let problem = data[1];
+
+    var res = request('GET', `http://codeforces.com/contest/${contest}/problem/${problem}`);
+
+    let html: string = res.getBody('utf8');
+    let pos = 0;
+
+    let inputs = [];
+    let outputs = [];
+
+    while (true){
+        pos = html.indexOf('<div class="title">Input</div>', pos);
+
+        if (pos === -1){
+            break;
+        }
+
+        let begin_pre = html.indexOf('<pre>', pos);
+        let end_pre = html.indexOf('</pre>', pos);
+
+        let inputTestcase = html.substring(begin_pre + 5, end_pre);
+
+        while (inputTestcase.indexOf('<br />') !== -1){
+            inputTestcase = inputTestcase.replace('<br />', '\n');
+        }
+
+        pos = html.indexOf('<div class="title">Output</div>', pos);
+
+        begin_pre = html.indexOf('<pre>', pos);
+        end_pre = html.indexOf('</pre>', pos);
+
+        let outputTestcase = html.substring(begin_pre + 5, end_pre);
+
+        while (outputTestcase.indexOf('<br />') !== -1){
+            outputTestcase = outputTestcase.replace('<br />', '\n');
+        }
+
+        inputs.push(inputTestcase);
+        outputs.push(outputTestcase);
+    }
+
+    return new Problem(problem, inputs, outputs);
+}
+
+export const CODEFORCES = new SiteDescription(
+        "codeforces",
+        "codeforces.com",
+        parseContest,
+        parseProblem,
+    );

src/test/extension.test.ts

@@ -8,7 +8,7 @@ import * as assert from 'assert';
 import { dirname, join } from 'path';
 import { timedRun, testcasesName, testSolution, newArena, ATTIC, TESTCASES, upgradeArena, stressSolution, newProblemFromId, newContestFromId } from '../core';
 import { TestcaseResult, Veredict } from '../types';
-import { rmdirSync, existsSync, readdirSync, unlinkSync, openSync, writeSync, closeSync } from 'fs';
+import { rmdirSync, existsSync, readdirSync, unlinkSync, openSync, writeSync, closeSync, readSync } from 'fs';
 
 const SRC = join(dirname(dirname(dirname(__filename))), 'src', 'test');
 const ARENA = join(SRC, 'arena');
@@ -290,4 +290,58 @@ suite("Extension Tests", function () {
 
         recRmdir(path);
     });
+
+    // test("downloading", function(){
+    //     let request = require('sync-request');
+
+    //     console.log("Start downloading...");
+    //     var res = request('GET', 'http://codeforces.com/contest/1081/problem/E');
+    //     console.log("Downloaded...");
+    //     let html: string = res.getBody('utf8');
+
+    //     let fd = openSync("/home/marx/xxx.html", "w");
+    //     writeSync(fd, html);
+    //     closeSync(fd);
+    // });
+
+    function readFile(path: string){
+        let fd = openSync(path, "r");
+        let buffer = new Buffer(1 << 20);
+        readSync(fd, buffer, 0, 1 << 20, 0);
+        let answer = buffer.toString();
+        return answer;
+    }
+
+    test("parsing", function(){
+        let html: string = readFile(join(__dirname, "codeforces.html"));
+        let pos = 0;
+
+        while (true){
+            pos = html.indexOf('<div class="title">Input</div>', pos);
+
+            if (pos === -1){
+                break;
+            }
+
+            let begin_pre = html.indexOf('<pre>', pos);
+            let end_pre = html.indexOf('</pre>', pos);
+
+            let inputTestcase = html.substring(begin_pre + 5, end_pre);
+
+            while (inputTestcase.indexOf('<br />') !== -1){
+                inputTestcase = inputTestcase.replace('<br />', '\n');
+            }
+
+            pos = html.indexOf('<div class="title">Output</div>', pos);
+
+            begin_pre = html.indexOf('<pre>', pos);
+            end_pre = html.indexOf('</pre>', pos);
+
+            let outputTestcase = html.substring(begin_pre + 5, end_pre);
+
+            while (outputTestcase.indexOf('<br />') !== -1){
+                outputTestcase = outputTestcase.replace('<br />', '\n');
+            }
+        }
+    });
 });