跳转至

对拍

视频讲解

🎥 视频讲解

gen.cpp，gen.java，gen.py（数据生成器） 
#include<bits/stdc++.h>
using namespace std;
mt19937 rnd(time(0));
int getInt(int x,int y){
    return rnd()%(y-x+1)+x;
}
int main(){
    freopen("1.in","w",stdout);
    int n=getInt(5,10);
    cout<<n<<"\n";
    for(int i=1;i<=n;i++){
        cout<<getInt(1,10)<<" ";
    }
} 

import java.io.*;
import java.util.*;

public class gen{
    // 高质量随机数
    static Random rnd = new Random();

    // 生成 [x,y] 的随机数
    static int getInt(int x,int y){
        return rnd.nextInt(y-x+1)+x;
    }

    public static void main(String[] args) throws Exception{
        // 输出到 1.in
        PrintWriter out = new PrintWriter(new FileWriter("1.in"));

        int n = getInt(5,10); // 随机数据规模
        out.println(n);

        // 生成 n 个随机数
        for(int i=1;i<=n;i++){
            out.print(getInt(1,10)+" ");
        }

        out.close();
    }
}

import random

# 生成测试数据到 1.in
with open("1.in", "w", encoding="utf-8") as f:
    n = random.randint(5, 10)
    f.write(str(n) + "\n")
    for _ in range(n):
        f.write(str(random.randint(1, 10)) + " ")
brute.cpp，brute.java，brute.py（暴力代码） 
#include<bits/stdc++.h>
using namespace std;
mt19937 rnd(time(0));
int getInt(int x,int y){
    return rnd()%(y-x+1)+x;
}
int main(){
    freopen("1.in","r",stdin);
    freopen("1.ans","w",stdout);
    int n,x;
    cin>>n;
    int ans=0;
    for(int i=1;i<=n;i++){
        cin>>x;
        cout<<x<<"\n";
    }
//  cout<<ans;
} 

import java.io.*;
import java.util.*;

public class brute{
    public static void main(String[] args) throws Exception{
        // 读入数据，输出暴力答案到 1.ans
        BufferedReader br = new BufferedReader(new FileReader("1.in"));
        PrintWriter out = new PrintWriter(new FileWriter("1.ans"));

        int n = Integer.parseInt(br.readLine().trim());
        StringTokenizer st = new StringTokenizer(br.readLine());

        // 示例：直接输出（这里写暴力解）
        for(int i=1;i<=n;i++){
            int x = Integer.parseInt(st.nextToken());
            out.println(x);
        }

        br.close();
        out.close();
    }
}

# 读取输入
with open("1.in", "r", encoding="utf-8") as f:
    n = int(f.readline().strip())
    a = list(map(int, f.readline().split()))

# 输出暴力答案
with open("1.ans", "w", encoding="utf-8") as f:
    for x in a:
        f.write(str(x) + "\n")
std.cpp，std.java，std.py（预期的标准代码） 
#include<bits/stdc++.h>
using namespace std;
mt19937 rnd(time(0));
int getInt(int x,int y){
    return rnd()%(y-x+1)+x;
}
int main(){
    freopen("1.in","r",stdin);
    freopen("1.out","w",stdout);
    int n,x;
    cin>>n;
    int ans=0;
    for(int i=1;i<=n;i++){
        cin>>x;
        cout<<x<<"\n";
    }
//  cout<<ans;
} 

import java.io.*;
import java.util.*;

public class std{
    public static void main(String[] args) throws Exception{
        // 读入数据，输出标准答案到 1.out
        BufferedReader br = new BufferedReader(new FileReader("1.in"));
        PrintWriter out = new PrintWriter(new FileWriter("1.out")); // ⚠️ 注意是 1.out

        int n = Integer.parseInt(br.readLine().trim());
        StringTokenizer st = new StringTokenizer(br.readLine());

        // 示例：直接输出（这里写正解）
        for(int i=1;i<=n;i++){
            int x = Integer.parseInt(st.nextToken());
            out.println(x);
        }

        br.close();
        out.close();
    }
}

# 读取输入
with open("1.in", "r", encoding="utf-8") as f:
    n = int(f.readline().strip())
    a = list(map(int, f.readline().split()))

# 输出标准答案
with open("1.out", "w", encoding="utf-8") as f:
    for x in a:
        f.write(str(x) + "\n")
check.cpp，Main.java，check.py（检查代码） 
#include <windows.h>
#include <iostream>;
using namespace std;
int main(){
    for(int i=1;i<=100;i++){
        system("gen.exe");
        system("brute.exe");
        system("std.exe");
        if(system("fc 1.out 1.ans")){
            cout<<"WA! on test "<<i<<"\n";
            return 0;
        }else{
            cout<<"AC on test "<<i<<"\n";
        }
    }
}

import java.io.*;
import java.nio.file.*;

public class Main{

    // 比较两个文件是否完全一致
    static boolean sameFile(String f1,String f2) throws Exception{
        byte[] a = Files.readAllBytes(Paths.get(f1));
        byte[] b = Files.readAllBytes(Paths.get(f2));
        if(a.length!=b.length) return false;
        for(int i=0;i<a.length;i++){
            if(a[i]!=b[i]) return false;
        }
        return true;
    }

    public static void main(String[] args) throws Exception{
        for(int i=1;i<=100;i++){
            // 运行数据生成器
            Process p1 = Runtime.getRuntime().exec("java gen");
            p1.waitFor();

            // 运行暴力
            Process p2 = Runtime.getRuntime().exec("java brute");
            p2.waitFor();

            // 运行标准解
            Process p3 = Runtime.getRuntime().exec("java std");
            p3.waitFor();

            // 比较输出
            if(!sameFile("1.out","1.ans")){
                System.out.println("WA! on test "+i);
                return;
            }else{
                System.out.println("AC on test "+i);
            }
        }
    }
}

import subprocess

# 比较两个文件是否完全一致
def same_file(f1, f2):
    with open(f1, "rb") as a, open(f2, "rb") as b:
        return a.read() == b.read()

for i in range(1, 101):
    # 运行生成器
    subprocess.run(["python", "gen.py"], check=True)

    # 运行暴力
    subprocess.run(["python", "brute.py"], check=True)

    # 运行标准
    subprocess.run(["python", "std.py"], check=True)

    # 比较结果
    if not same_file("1.out", "1.ans"):
        print(f"WA! on test {i}")
        break
    else:
        print(f"AC on test {i}")