HDU 1073 Online Judge （字符串处理，简单题）

最新推荐文章于 2020-02-24 20:33:12 发布

转载最新推荐文章于 2020-02-24 20:33:12 发布 · 196 阅读

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#java

本文介绍了一个简单的在线判题系统实现方法，主要关注如何通过忽略空格、制表符及换行符来判断用户提交的答案是否正确。文章提供了一段C++代码示例，展示了如何读取标准输出文件和用户提交的文件，并进行比较。

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Online Judge

Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)
Total Submission(s): 3389 Accepted Submission(s): 1276

Problem Description

Ignatius is building an Online Judge, now he has worked out all the problems except the Judge System. The system has to read data from correct output file and user's result file, then the system compare the two files. If the two files are absolutly same, then the Judge System return "Accepted", else if the only differences between the two files are spaces(' '), tabs('\t'), or enters('\n'), the Judge System should return "Presentation Error", else the system will return "Wrong Answer".

Given the data of correct output file and the data of user's result file, your task is to determine which result the Judge System will return.

Input

The input contains several test cases. The first line of the input is a single integer T which is the number of test cases. T test cases follow.
Each test case has two parts, the data of correct output file and the data of the user's result file. Both of them are starts with a single line contains a string "START" and end with a single line contains a string "END", these two strings are not the data. In other words, the data is between the two strings. The data will at most 5000 characters.

Output

For each test cases, you should output the the result Judge System should return.

Sample Input

4 START 1 + 2 = 3 END START 1+2=3 END START 1 + 2 = 3 END START 1 + 2 = 3 END START 1 + 2 = 3 END START 1 + 2 = 4 END START 1 + 2 = 3 END START 1 + 2 = 3 END

Sample Output

Presentation Error Presentation Error Wrong Answer Presentation Error

Author

Ignatius.L

简单的题目。

主要是加了字符'\n'

每行的结束我都加上了'\n'字符。

之后比较就可以了。

#include<stdio.h>
#include<string.h>
#include<algorithm>
#include<iostream>
#include<math.h>
using namespace std;
const int MAXN=5050;

char a1[MAXN],a2[MAXN];
char b1[MAXN],b2[MAXN];
char temp[MAXN];
void input(char a[],char b[])
{
    gets(temp);
    while(strcmp(temp,"START")!=0)gets(temp);

    while(gets(temp))
    {
        if(strcmp(temp,"END")==0)break;
        if(strlen(temp)!=0)strcat(a,temp);
        strcat(a,"\n");
    }
    int t=0;
    int len=strlen(a);
    for(int i=0;i<len;i++)
    {
        if(a[i]!=' '&&a[i]!='\t'&&a[i]!='\n')
          b[t++]=a[i];
    }
    b[t]='\0';
}

int main()
{
    //freopen("in.txt","r",stdin);
    //freopen("out.txt","w",stdout);
    int T;
    scanf("%d",&T);
    while(T--)
    {
        a1[0]='\0';
        a2[0]='\0';
        input(a1,b1);
        input(a2,b2);
        if(strcmp(a1,a2)==0)printf("Accepted\n");
        else if(strcmp(b1,b2)==0)printf("Presentation Error\n");
        else printf("Wrong Answer\n");
    }
    return 0;
}