183 lines
5.2 KiB
Python
183 lines
5.2 KiB
Python
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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"""
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BitOJ 自定义验证程序集成示例
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演示如何在实际的BitOJ系统中使用自定义验证程序
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"""
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import sys
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sys.path.append('../python')
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try:
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from judgescript import InternalJudge
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except ImportError:
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# 如果无法导入，创建一个模拟的类
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class InternalJudge:
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def __init__(self, allowpe=False):
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self.allowpe = allowpe
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def compare_string(self, output, result):
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if output == result:
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return 'AC'
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if self.allowpe:
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# 简化的PE检查
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if ''.join(output.split()) == ''.join(result.split()):
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return 'PE'
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return 'WA'
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def demo_internal_judge():
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"""演示内置判题器的使用"""
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print("=== 内置判题器演示 ===")
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# 标准文本比较
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ij_strict = InternalJudge(allowpe=False)
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print("严格文本比较:")
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result = ij_strict.compare_string("hello world\n", "hello world\n")
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print(f" 'hello world\\n' vs 'hello world\\n' => {result}")
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result = ij_strict.compare_string("hello world", "hello world\n")
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print(f" 'hello world' vs 'hello world\\n' => {result}")
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# 允许格式错误的比较
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ij_pe = InternalJudge(allowpe=True)
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print("\n允许格式错误的比较:")
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result = ij_pe.compare_string("1 2 3 4 5\n", "1\n2\n3\n4\n5\n")
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print(f" '1 2 3 4 5\\n' vs '1\\n2\\n3\\n4\\n5\\n' => {result}")
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result = ij_pe.compare_string("12345\n", "1 2 3 4 5\n")
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print(f" '12345\\n' vs '1 2 3 4 5\\n' => {result}")
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def demo_custom_judge_config():
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"""演示如何配置自定义验证程序"""
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print("\n=== 自定义验证程序配置示例 ===")
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# 浮点数比较验证程序代码
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float_validator_code = """
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#include <iostream>
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#include <fstream>
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#include <cmath>
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using namespace std;
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const double EPS = 1e-9;
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int main(int argc, char* argv[]) {
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if (argc != 4) {
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cout << "WA" << endl;
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return 0;
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}
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ifstream expected(argv[2]);
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ifstream result(argv[3]);
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double exp_val, res_val;
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if (!(expected >> exp_val) || !(result >> res_val)) {
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cout << "WA" << endl;
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return 0;
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}
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if (fabs(exp_val - res_val) <= EPS) {
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cout << "AC" << endl;
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} else {
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cout << "WA" << endl;
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}
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return 0;
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}
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"""
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print("浮点数比较验证程序配置:")
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print(" 语言: gcc-3.3")
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print(" 代码长度:", len(float_validator_code), "字符")
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print(" 功能: 允许浮点数误差比较")
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# 多解验证程序代码
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multi_solution_code = """
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import sys
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def main():
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try:
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with open(sys.argv[2], 'r') as f:
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expected = f.read().strip()
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with open(sys.argv[3], 'r') as f:
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result = f.read().strip()
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exp_nums = sorted(map(int, expected.split()))
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res_nums = sorted(map(int, result.split()))
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if exp_nums == res_nums:
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print("AC")
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else:
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print("WA")
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except:
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print("WA")
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if __name__ == "__main__":
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main()
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"""
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print("\n多解验证程序配置:")
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print(" 语言: python-2.5")
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print(" 代码长度:", len(multi_solution_code), "字符")
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print(" 功能: 允许多种正确答案")
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def demo_judge_usage_scenarios():
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"""演示不同判题方式的使用场景"""
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print("\n=== 判题方式使用场景 ===")
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scenarios = [
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{
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"名称": "字符串精确比较",
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"适用": "输出结果固定的算法题",
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"示例": "计算1+1的结果",
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"验证方式": "InternalJudge(allowpe=False)"
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},
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{
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"名称": "字符串容错比较",
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"适用": "允许格式差异的题目",
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"示例": "输出多个数字，允许不同的分隔符",
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"验证方式": "InternalJudge(allowpe=True)"
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},
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{
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"名称": "文件大小+MD5校验",
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"适用": "二进制文件输出",
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"示例": "图像处理、音频处理等",
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"验证方式": "文件级别的校验"
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},
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{
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"名称": "自定义验证程序",
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"适用": "复杂的判题逻辑",
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"示例": "浮点数比较、多解题目、交互题等",
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"验证方式": "ExternalJudge"
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}
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]
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for i, scenario in enumerate(scenarios, 1):
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print(f"{i}. {scenario['名称']}")
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print(f" 适用场景: {scenario['适用']}")
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print(f" 典型示例: {scenario['示例']}")
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print(f" 实现方式: {scenario['验证方式']}")
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print()
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def main():
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"""主演示函数"""
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print("BitOJ 判题系统验证程序演示")
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print("=" * 50)
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demo_internal_judge()
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demo_custom_judge_config()
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demo_judge_usage_scenarios()
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print("演示完成！")
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print("\n更多示例文件:")
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print(" - float_validator.cpp: 浮点数比较验证程序")
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print(" - multi_solution_validator.py: 多解验证程序")
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print(" - StringFormatValidator.java: 格式验证程序")
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print(" - range_validator.cpp: 数值范围验证程序")
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if __name__ == "__main__":
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main() |