218 lines
7.3 KiB
Python
218 lines
7.3 KiB
Python
import random
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from django.core.management.base import BaseCommand
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from contest.models import Contest, ContestQuestion, Question, QuestionVersion
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def _generate_beginner():
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"""入门：100以内加减乘除，约 400 题。"""
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questions = []
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ops = [
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("+", lambda a, b: a + b),
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("-", lambda a, b: a - b),
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("×", lambda a, b: a * b),
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("÷", lambda a, b: a // b if b != 0 and a % b == 0 else None),
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]
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idx = 0
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for a in range(2, 100):
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for b in range(2, min(a + 1, 100)):
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for sym, fn in ops:
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if idx >= 400:
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return questions
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if sym == "÷" and (b == 0 or a % b != 0):
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continue
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if sym == "-" and a < b:
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continue
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result = fn(a, b)
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if result is None or result < 0 or result > 10000:
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continue
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slug = f"b-auto-{idx:04d}"
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prompt = f"{a} {sym} {b}"
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answer = str(result)
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if (slug, prompt, answer) not in questions:
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questions.append((slug, prompt, answer))
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idx += 1
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return questions[:400]
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def _generate_standard():
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"""标准：两位数乘除、大数减法、平方，约 400 题。"""
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questions = []
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idx = 0
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# 两位数乘法
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for a in range(11, 100):
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for b in range(11, min(a + 1, 100)):
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if idx >= 150:
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break
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questions.append((f"s-auto-mul-{idx:04d}", f"{a} × {b}", str(a * b)))
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idx += 1
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# 三位数除法
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for a in range(100, 1000, 7):
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for b in range(11, 50):
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if idx >= 300:
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break
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if a % b == 0:
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questions.append((f"s-auto-div-{idx:04d}", f"{a} ÷ {b}", str(a // b)))
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idx += 1
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# 大数减法
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for a in range(1000, 10000, 137):
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b = random.randint(100, a - 1)
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if idx >= 350:
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break
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questions.append((f"s-auto-sub-{idx:04d}", f"{a} - {b}", str(a - b)))
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idx += 1
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# 平方
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for a in range(11, 100):
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if idx >= 400:
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break
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questions.append((f"s-auto-sq-{idx:04d}", f"{a}²", str(a * a)))
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idx += 1
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return questions[:400]
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def _generate_advanced():
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"""进阶：模运算、组合数、高次幂、开方、等差数列求和，约 200 题。"""
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questions = []
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idx = 0
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# 模运算
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for base in range(2, 20):
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for exp in range(2, 13):
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for mod in range(3, 20):
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if idx >= 50:
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break
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result = pow(base, exp, mod)
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questions.append((f"a-auto-mod-{idx:04d}", f"{base}^{exp} ÷ {mod} 的余数", str(result)))
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idx += 1
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# 组合数 C(n,k)
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for n in range(5, 31):
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for k in range(2, min(n // 2 + 1, 8)):
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if idx >= 100:
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break
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from math import comb
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questions.append((f"a-auto-comb-{idx:04d}", f"C({n},{k})", str(comb(n, k))))
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idx += 1
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# 高次幂
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for base in range(2, 10):
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for exp in range(3, 10):
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if idx >= 130:
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break
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result = base ** exp
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if result > 10**8:
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continue
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questions.append((f"a-auto-pow-{idx:04d}", f"{base}^{exp}", str(result)))
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idx += 1
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# 开方（完全平方数）
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for n in range(10, 200):
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if idx >= 160:
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break
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r = int(n**0.5)
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if r * r == n:
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questions.append((f"a-auto-sqrt-{idx:04d}", f"√{n}", str(r)))
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idx += 1
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# 等差数列求和 1..n
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for n in range(10, 201, 5):
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if idx >= 200:
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break
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result = n * (n + 1) // 2
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questions.append((f"a-auto-sum-{idx:04d}", f"1 到 {n} 的整数和", str(result)))
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idx += 1
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return questions[:200]
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QUESTIONS = {
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Question.Track.BEGINNER: _generate_beginner(),
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Question.Track.STANDARD: _generate_standard(),
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Question.Track.ADVANCED: _generate_advanced(),
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}
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class Command(BaseCommand):
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help = "创建分层题库（入门/标准/进阶）和实时 1v1、每日赛、单人练习"
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def handle(self, *args, **options):
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versions = {}
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for track, questions in QUESTIONS.items():
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versions[track] = []
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for slug, prompt, answer in questions:
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question, _ = Question.objects.update_or_create(
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slug=slug,
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defaults={"track": track, "tags": ["口算"], "is_active": True},
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)
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version, _ = QuestionVersion.objects.update_or_create(
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question=question,
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version=1,
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defaults={
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"prompt": prompt,
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"answer": answer,
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"explanation": f"答案为 {answer}",
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},
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)
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versions[track].append(version)
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contest_specs = []
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for track, label in (
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(Question.Track.BEGINNER, "入门"),
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(Question.Track.STANDARD, "标准"),
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(Question.Track.ADVANCED, "进阶"),
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):
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contest_specs.extend(
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[
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(
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f"realtime-{track}",
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f"{label}实时 1v1",
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Contest.Kind.REALTIME,
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track,
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60,
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),
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(
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f"daily-{track}",
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f"{label}今日挑战",
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Contest.Kind.DAILY,
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track,
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180,
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),
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(
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f"practice-{track}",
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f"{label}单人闯关",
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Contest.Kind.PRACTICE,
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track,
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300,
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),
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]
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)
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for slug, title, kind, track, duration in contest_specs:
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contest, _ = Contest.objects.update_or_create(
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slug=slug,
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defaults={
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"title": title,
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"kind": kind,
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"track": track,
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"duration_seconds": duration,
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"status": Contest.Status.PUBLISHED,
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},
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)
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ContestQuestion.objects.filter(contest=contest).delete()
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pool = list(versions[track])
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random.shuffle(pool)
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selected = pool[:8]
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ContestQuestion.objects.bulk_create(
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[
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ContestQuestion(
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contest=contest,
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question_version=version,
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order=index,
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points=100,
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)
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for index, version in enumerate(selected, start=1)
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]
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)
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total = sum(map(len, QUESTIONS.values()))
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self.stdout.write(
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self.style.SUCCESS(
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f"已创建 {total} 道题（入门{len(QUESTIONS[Question.Track.BEGINNER])}、"
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f"标准{len(QUESTIONS[Question.Track.STANDARD])}、"
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f"进阶{len(QUESTIONS[Question.Track.ADVANCED])}）和 {len(contest_specs)} 场比赛"
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)
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)
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