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let statisticsStatements = {
fastest:
'\
SELECT \
DISTINCT(`user_id`) AS `user_id`, \
( \
SELECT \
`id` \
FROM `judge_state` `inner_table` \
WHERE `problem_id` = `outer_table`.`problem_id` AND `user_id` = `outer_table`.`user_id` AND `status` = "Accepted" AND `type` = 0 \
ORDER BY `total_time` ASC \
LIMIT 1 \
) AS `id`, \
( \
SELECT \
`total_time` \
FROM `judge_state` `inner_table` \
WHERE `problem_id` = `outer_table`.`problem_id` AND `user_id` = `outer_table`.`user_id` AND `status` = "Accepted" AND `type` = 0 \
ORDER BY `total_time` ASC \
LIMIT 1 \
) AS `total_time` \
FROM `judge_state` `outer_table` \
WHERE \
`problem_id` = __PROBLEM_ID__ AND `status` = "Accepted" AND `type` = 0 \
ORDER BY `total_time` ASC \
',
slowest:
' \
SELECT \
DISTINCT(`user_id`) AS `user_id`, \
( \
SELECT \
`id` \
FROM `judge_state` `inner_table` \
WHERE `problem_id` = `outer_table`.`problem_id` AND `user_id` = `outer_table`.`user_id` AND `status` = "Accepted" AND `type` = 0 \
ORDER BY `total_time` DESC \
LIMIT 1 \
) AS `id`, \
( \
SELECT \
`total_time` \
FROM `judge_state` `inner_table` \
WHERE `problem_id` = `outer_table`.`problem_id` AND `user_id` = `outer_table`.`user_id` AND `status` = "Accepted" AND `type` = 0 \
ORDER BY `total_time` DESC \
LIMIT 1 \
) AS `total_time` \
FROM `judge_state` `outer_table` \
WHERE \
`problem_id` = __PROBLEM_ID__ AND `status` = "Accepted" AND `type` = 0 \
ORDER BY `total_time` DESC \
',
shortest:
' \
SELECT \
DISTINCT(`user_id`) AS `user_id`, \
( \
SELECT \
`id` \
FROM `judge_state` `inner_table` \
WHERE `problem_id` = `outer_table`.`problem_id` AND `user_id` = `outer_table`.`user_id` AND `status` = "Accepted" AND `type` = 0 \
ORDER BY `code_length` ASC \
LIMIT 1 \
) AS `id`, \
( \
SELECT \
`code_length` \
FROM `judge_state` `inner_table` \
WHERE `problem_id` = `outer_table`.`problem_id` AND `user_id` = `outer_table`.`user_id` AND `status` = "Accepted" AND `type` = 0 \
ORDER BY `code_length` ASC \
LIMIT 1 \
) AS `code_length` \
FROM `judge_state` `outer_table` \
WHERE \
`problem_id` = __PROBLEM_ID__ AND `status` = "Accepted" AND `type` = 0 \
ORDER BY `code_length` ASC \
',
longest:
' \
SELECT \
DISTINCT(`user_id`) AS `user_id`, \
( \
SELECT \
`id` \
FROM `judge_state` `inner_table` \
WHERE `problem_id` = `outer_table`.`problem_id` AND `user_id` = `outer_table`.`user_id` AND `status` = "Accepted" AND `type` = 0 \
ORDER BY `code_length` DESC \
LIMIT 1 \
) AS `id`, \
( \
SELECT \
`code_length` \
FROM `judge_state` `inner_table` \
WHERE `problem_id` = `outer_table`.`problem_id` AND `user_id` = `outer_table`.`user_id` AND `status` = "Accepted" AND `type` = 0 \
ORDER BY `code_length` DESC \
LIMIT 1 \
) AS `code_length` \
FROM `judge_state` `outer_table` \
WHERE \
`problem_id` = __PROBLEM_ID__ AND `status` = "Accepted" AND `type` = 0 \
ORDER BY `code_length` DESC \
',
earliest:
' \
SELECT \
DISTINCT(`user_id`) AS `user_id`, \
( \
SELECT \
`id` \
FROM `judge_state` `inner_table` \
WHERE `problem_id` = `outer_table`.`problem_id` AND `user_id` = `outer_table`.`user_id` AND `status` = "Accepted" AND `type` = 0 \
ORDER BY `submit_time` ASC \
LIMIT 1 \
) AS `id`, \
( \
SELECT \
`submit_time` \
FROM `judge_state` `inner_table` \
WHERE `problem_id` = `outer_table`.`problem_id` AND `user_id` = `outer_table`.`user_id` AND `status` = "Accepted" AND `type` = 0 \
ORDER BY `submit_time` ASC \
LIMIT 1 \
) AS `submit_time` \
FROM `judge_state` `outer_table` \
WHERE \
`problem_id` = __PROBLEM_ID__ AND `status` = "Accepted" AND `type` = 0 \
ORDER BY `submit_time` ASC \
',
min:
' \
SELECT \
DISTINCT(`user_id`) AS `user_id`, \
( \
SELECT \
`id` \
FROM `judge_state` `inner_table` \
WHERE `problem_id` = `outer_table`.`problem_id` AND `user_id` = `outer_table`.`user_id` AND `status` = "Accepted" AND `type` = 0 \
ORDER BY `max_memory` ASC \
LIMIT 1 \
) AS `id`, \
( \
SELECT \
`max_memory` \
FROM `judge_state` `inner_table` \
WHERE `problem_id` = `outer_table`.`problem_id` AND `user_id` = `outer_table`.`user_id` AND `status` = "Accepted" AND `type` = 0 \
ORDER BY `max_memory` ASC \
LIMIT 1 \
) AS `max_memory` \
FROM `judge_state` `outer_table` \
WHERE \
`problem_id` = __PROBLEM_ID__ AND `status` = "Accepted" AND `type` = 0 \
ORDER BY `max_memory` ASC \
',
max:
' \
SELECT \
DISTINCT(`user_id`) AS `user_id`, \
( \
SELECT \
`id` \
FROM `judge_state` `inner_table` \
WHERE `problem_id` = `outer_table`.`problem_id` AND `user_id` = `outer_table`.`user_id` AND `status` = "Accepted" AND `type` = 0 \
ORDER BY `max_memory` ASC \
LIMIT 1 \
) AS `id`, \
( \
SELECT \
`max_memory` \
FROM `judge_state` `inner_table` \
WHERE `problem_id` = `outer_table`.`problem_id` AND `user_id` = `outer_table`.`user_id` AND `status` = "Accepted" AND `type` = 0 \
ORDER BY `max_memory` ASC \
LIMIT 1 \
) AS `max_memory` \
FROM `judge_state` `outer_table` \
WHERE \
`problem_id` = __PROBLEM_ID__ AND `status` = "Accepted" AND `type` = 0 \
ORDER BY `max_memory` DESC \
'
};
let Sequelize = require('sequelize');
let db = syzoj.db;
let User = syzoj.model('user');
let File = syzoj.model('file');
const fs = require('fs-extra');
const path = require('path');
let model = db.define('problem', {
id: { type: Sequelize.INTEGER, primaryKey: true, autoIncrement: true },
title: { type: Sequelize.STRING(80) },
user_id: {
type: Sequelize.INTEGER,
references: {
model: 'user',
key: 'id'
}
},
publicizer_id: {
type: Sequelize.INTEGER,
references: {
model: 'user',
key: 'id'
}
},
is_anonymous: { type: Sequelize.BOOLEAN },
description: { type: Sequelize.TEXT },
input_format: { type: Sequelize.TEXT },
output_format: { type: Sequelize.TEXT },
example: { type: Sequelize.TEXT },
limit_and_hint: { type: Sequelize.TEXT },
time_limit: { type: Sequelize.INTEGER },
memory_limit: { type: Sequelize.INTEGER },
additional_file_id: { type: Sequelize.INTEGER },
ac_num: { type: Sequelize.INTEGER },
submit_num: { type: Sequelize.INTEGER },
is_public: { type: Sequelize.BOOLEAN },
file_io: { type: Sequelize.BOOLEAN },
file_io_input_name: { type: Sequelize.TEXT },
file_io_output_name: { type: Sequelize.TEXT },
publicize_time: { type: Sequelize.DATE },
type: {
type: Sequelize.ENUM,
values: ['traditional', 'submit-answer', 'interaction']
}
}, {
timestamps: false,
tableName: 'problem',
indexes: [
{
fields: ['title'],
},
{
fields: ['user_id'],
},
{
fields: ['publicize_time'],
},
]
});
let Model = require('./common');
class Problem extends Model {
static async create(val) {
return Problem.fromRecord(Problem.model.build(Object.assign({
title: '',
user_id: '',
publicizer_id: '',
is_anonymous: false,
description: '',
input_format: '',
output_format: '',
example: '',
limit_and_hint: '',
time_limit: syzoj.config.default.problem.time_limit,
memory_limit: syzoj.config.default.problem.memory_limit,
ac_num: 0,
submit_num: 0,
is_public: false,
file_io: false,
file_io_input_name: '',
file_io_output_name: '',
type: 'traditional'
}, val)));
}
async loadRelationships() {
this.user = await User.fromID(this.user_id);
this.publicizer = await User.fromID(this.publicizer_id);
this.additional_file = await File.fromID(this.additional_file_id);
}
async isAllowedEditBy(user) {
if (!user) return false;
if (await user.hasPrivilege('manage_problem')) return true;
return this.user_id === user.id;
}
async isAllowedUseBy(user) {
if (this.is_public) return true;
if (!user) return false;
if (await user.hasPrivilege('manage_problem')) return true;
return this.user_id === user.id;
}
async isAllowedManageBy(user) {
if (!user) return false;
if (await user.hasPrivilege('manage_problem')) return true;
return user.is_admin;
}
getTestdataPath() {
return syzoj.utils.resolvePath(syzoj.config.upload_dir, 'testdata', this.id.toString());
}
getTestdataArchivePath() {
return syzoj.utils.resolvePath(syzoj.config.upload_dir, 'testdata-archive', this.id.toString() + '.zip');
}
async updateTestdata(path, noLimit) {
await syzoj.utils.lock(['Problem::Testdata', this.id], async () => {
let p7zip = new (require('node-7z'));
let unzipSize = 0, unzipCount;
await p7zip.list(path).progress(files => {
unzipCount = files.length;
for (let file of files) unzipSize += file.size;
});
if (!noLimit && unzipCount > syzoj.config.limit.testdata_filecount) throw new ErrorMessage('数据包中的文件太多。');
if (!noLimit && unzipSize > syzoj.config.limit.testdata) throw new ErrorMessage('数据包太大。');
let dir = this.getTestdataPath();
await fs.remove(dir);
await fs.ensureDir(dir);
let execFileAsync = Promise.promisify(require('child_process').execFile);
await execFileAsync(__dirname + '/../bin/unzip', ['-j', '-o', '-d', dir, path]);
await fs.move(path, this.getTestdataArchivePath(), { overwrite: true });
});
}
async uploadTestdataSingleFile(filename, filepath, size, noLimit) {
await syzoj.utils.lock(['Promise::Testdata', this.id], async () => {
let dir = this.getTestdataPath();
await fs.ensureDir(dir);
let oldSize = 0, list = await this.listTestdata(), replace = false, oldCount = 0;
if (list) {
oldCount = list.files.length;
for (let file of list.files) {
if (file.filename !== filename) oldSize += file.size;
else replace = true;
}
}
if (!noLimit && oldSize + size > syzoj.config.limit.testdata) throw new ErrorMessage('数据包太大。');
if (!noLimit && oldCount + !replace > syzoj.config.limit.testdata_filecount) throw new ErrorMessage('数据包中的文件太多。');
await fs.move(filepath, path.join(dir, filename), { overwrite: true });
let execFileAsync = Promise.promisify(require('child_process').execFile);
try { await execFileAsync('dos2unix', [path.join(dir, filename)]); } catch (e) {}
await fs.remove(this.getTestdataArchivePath());
});
}
async deleteTestdataSingleFile(filename) {
await syzoj.utils.lock(['Promise::Testdata', this.id], async () => {
await fs.remove(path.join(this.getTestdataPath(), filename));
await fs.remove(this.getTestdataArchivePath());
});
}
async makeTestdataZip() {
await syzoj.utils.lock(['Promise::Testdata', this.id], async () => {
let dir = this.getTestdataPath();
if (!await syzoj.utils.isDir(dir)) throw new ErrorMessage('无测试数据。');
let p7zip = new (require('node-7z'));
let list = await this.listTestdata(), pathlist = list.files.map(file => path.join(dir, file.filename));
if (!pathlist.length) throw new ErrorMessage('无测试数据。');
await fs.ensureDir(path.resolve(this.getTestdataArchivePath(), '..'));
await p7zip.add(this.getTestdataArchivePath(), pathlist);
});
}
async hasSpecialJudge() {
try {
let dir = this.getTestdataPath();
let list = await fs.readdir(dir);
return list.includes('spj.js') || list.find(x => x.startsWith('spj_')) !== undefined;
} catch (e) {
return false;
}
}
async listTestdata() {
try {
let dir = this.getTestdataPath();
let list = await fs.readdir(dir);
list = await list.mapAsync(async x => {
let stat = await fs.stat(path.join(dir, x));
if (!stat.isFile()) return undefined;
return {
filename: x,
size: stat.size
};
});
list = list.filter(x => x);
let res = {
files: list,
zip: null
};
try {
let stat = await fs.stat(this.getTestdataArchivePath());
if (stat.isFile()) {
res.zip = {
size: stat.size
};
}
} catch (e) {
if (list) {
res.zip = {
size: null
};
}
}
return res;
} catch (e) {
return null;
}
}
async updateFile(path, type, noLimit) {
let file = await File.upload(path, type, noLimit);
if (type === 'additional_file') {
this.additional_file_id = file.id;
}
await this.save();
}
async validate() {
if (this.time_limit <= 0) return 'Invalid time limit';
if (this.time_limit > syzoj.config.limit.time_limit) return 'Time limit too large';
if (this.memory_limit <= 0) return 'Invalid memory limit';
if (this.memory_limit > syzoj.config.limit.memory_limit) return 'Memory limit too large';
if (!['traditional', 'submit-answer', 'interaction'].includes(this.type)) return 'Invalid problem type';
if (this.type === 'traditional') {
let filenameRE = /^[\w \-\+\.]*$/;
if (this.file_io_input_name && !filenameRE.test(this.file_io_input_name)) return 'Invalid input file name';
if (this.file_io_output_name && !filenameRE.test(this.file_io_output_name)) return 'Invalid output file name';
if (this.file_io) {
if (!this.file_io_input_name) return 'No input file name';
if (!this.file_io_output_name) return 'No output file name';
}
}
return null;
}
async getJudgeState(user, acFirst) {
if (!user) return null;
let JudgeState = syzoj.model('judge_state');
let where = {
user_id: user.id,
problem_id: this.id
};
if (acFirst) {
where.status = 'Accepted';
let state = await JudgeState.findOne({
where: where,
order: [['submit_time', 'desc']]
});
if (state) return state;
}
if (where.status) delete where.status;
return await JudgeState.findOne({
where: where,
order: [['submit_time', 'desc']]
});
}
async resetSubmissionCount() {
let JudgeState = syzoj.model('judge_state');
await syzoj.utils.lock(['Problem::resetSubmissionCount', this.id], async () => {
this.submit_num = await JudgeState.count({ problem_id: this.id, type: { $not: 1 } });
this.ac_num = await JudgeState.count({ score: 100, problem_id: this.id, type: { $not: 1 } });
await this.save();
});
}
// type: fastest / slowest / shortest / longest / earliest
async countStatistics(type) {
let statement = statisticsStatements[type];
if (!statement) return null;
statement = statement.replace('__PROBLEM_ID__', this.id);
return await db.countQuery(statement);
}
// type: fastest / slowest / shortest / longest / earliest
async getStatistics(type, paginate) {
let statistics = {
type: type,
judge_state: null,
scoreDistribution: null,
prefixSum: null,
suffixSum: null
};
let statement = statisticsStatements[type];
if (!statement) return null;
statement = statement.replace('__PROBLEM_ID__', this.id);
let a;
if (!paginate.pageCnt) a = [];
else a = (await db.query(statement + `LIMIT ${paginate.perPage} OFFSET ${(paginate.currPage - 1) * paginate.perPage}`))[0];
let JudgeState = syzoj.model('judge_state');
statistics.judge_state = await a.mapAsync(async x => JudgeState.fromID(x.id));
a = (await db.query('SELECT `score`, COUNT(*) AS `count` FROM `judge_state` WHERE `problem_id` = __PROBLEM_ID__ AND `type` = 0 AND `pending` = 0 GROUP BY `score`'.replace('__PROBLEM_ID__', this.id)))[0];
let scoreCount = [];
for (let score of a) {
score.score = Math.min(Math.round(score.score), 100);
scoreCount[score.score] = score.count;
}
if (scoreCount[0] === undefined) scoreCount[0] = 0;
if (scoreCount[100] === undefined) scoreCount[100] = 0;
statistics.scoreDistribution = [];
for (let i = 0; i < scoreCount.length; i++) {
if (scoreCount[i] !== undefined) statistics.scoreDistribution.push({ score: i, count: scoreCount[i] });
}
statistics.prefixSum = JSON.parse(JSON.stringify(statistics.scoreDistribution));
statistics.suffixSum = JSON.parse(JSON.stringify(statistics.scoreDistribution));
for (let i = 1; i < statistics.prefixSum.length; i++) {
statistics.prefixSum[i].count += statistics.prefixSum[i - 1].count;
}
for (let i = statistics.prefixSum.length - 1; i >= 1; i--) {
statistics.suffixSum[i - 1].count += statistics.suffixSum[i].count;
}
return statistics;
}
async getTags() {
let ProblemTagMap = syzoj.model('problem_tag_map');
let maps = await ProblemTagMap.query(null, {
problem_id: this.id
});
let ProblemTag = syzoj.model('problem_tag');
let res = await maps.mapAsync(async map => {
return ProblemTag.fromID(map.tag_id);
});
res.sort((a, b) => {
return a.color > b.color ? 1 : -1;
});
return res;
}
async setTags(newTagIDs) {
let ProblemTagMap = syzoj.model('problem_tag_map');
let oldTagIDs = (await this.getTags()).map(x => x.id);
let delTagIDs = oldTagIDs.filter(x => !newTagIDs.includes(x));
let addTagIDs = newTagIDs.filter(x => !oldTagIDs.includes(x));
for (let tagID of delTagIDs) {
let map = await ProblemTagMap.findOne({
where: {
problem_id: this.id,
tag_id: tagID
}
});
await map.destroy();
}
for (let tagID of addTagIDs) {
let map = await ProblemTagMap.create({
problem_id: this.id,
tag_id: tagID
});
await map.save();
}
}
async changeID(id) {
id = parseInt(id);
await db.query('UPDATE `problem` SET `id` = ' + id + ' WHERE `id` = ' + this.id);
await db.query('UPDATE `judge_state` SET `problem_id` = ' + id + ' WHERE `problem_id` = ' + this.id);
await db.query('UPDATE `problem_tag_map` SET `problem_id` = ' + id + ' WHERE `problem_id` = ' + this.id);
await db.query('UPDATE `article` SET `problem_id` = ' + id + ' WHERE `problem_id` = ' + this.id);
let Contest = syzoj.model('contest');
let contests = await Contest.all();
for (let contest of contests) {
let problemIDs = await contest.getProblems();
let flag = false;
for (let i in problemIDs) {
if (problemIDs[i] === this.id) {
problemIDs[i] = id;
flag = true;
}
}
if (flag) {
await contest.setProblemsNoCheck(problemIDs);
await contest.save();
}
}
let oldTestdataDir = this.getTestdataPath(), oldTestdataZip = this.getTestdataArchivePath();
this.id = id;
// Move testdata
let newTestdataDir = this.getTestdataPath(), newTestdataZip = this.getTestdataArchivePath();
if (await syzoj.utils.isDir(oldTestdataDir)) {
await fs.move(oldTestdataDir, newTestdataDir);
}
if (await syzoj.utils.isFile(oldTestdataZip)) {
await fs.move(oldTestdataZip, newTestdataZip);
}
await this.save();
}
async delete() {
let oldTestdataDir = this.getTestdataPath(), oldTestdataZip = this.getTestdataPath();
await fs.remove(oldTestdataDir);
await fs.remove(oldTestdataZip);
let JudgeState = syzoj.model('judge_state');
let submissions = await JudgeState.query(null, { problem_id: this.id }), submitCnt = {}, acUsers = new Set();
for (let sm of submissions) {
if (sm.status === 'Accepted') acUsers.add(sm.user_id);
if (!submitCnt[sm.user_id]) {
submitCnt[sm.user_id] = 1;
} else {
submitCnt[sm.user_id]++;
}
}
for (let u in submitCnt) {
let user = await User.fromID(u);
user.submit_num -= submitCnt[u];
if (acUsers.has(parseInt(u))) user.ac_num--;
await user.save();
}
await db.query('DELETE FROM `problem` WHERE `id` = ' + this.id);
await db.query('DELETE FROM `judge_state` WHERE `problem_id` = ' + this.id);
await db.query('DELETE FROM `problem_tag_map` WHERE `problem_id` = ' + this.id);
await db.query('DELETE FROM `article` WHERE `problem_id` = ' + this.id);
}
getModel() { return model; }
}
Problem.model = model;
module.exports = Problem;