Question

我的代码正确编译，并且通过了所有测试用例，除了一个测试用例。该错误出现在以下句子中：“在我更年轻，更脆弱的岁月中，父亲给了我一些建议，从那时起我就一直在思考。”该句子的期望等级为7级，但是我的代码输出等级8。 / p>

以下是部署check50时的输出：

处理包含多个单词的单个句子

预期为“ 7年级\ n”，而不是“ 8年级\ n”

在打印出字母（96），单词（23）句子（1），索引（7.548）和round（index）的数量后，对于该特定情况，该数量明确为8，我清楚地看到所有数字都是正确。但是我不明白如何将7.548舍入为7。

请帮助我调试代码，并让我知道我所缺少的内容。谢谢！

#include <stdio.h>
#include <cs50.h>
#include <string.h>
#include <ctype.h>
#include <math.h>

int count_letters(int length , char arr[]);

int count_words(int length , char arr[]);

int count_sentences(int n, char arr[]);

int main (void)
{
    // Getting Input from user
    string text = get_string("Text: ");

    // Counting letters
    int  n = strlen(text);

    int letter = count_letters(n, text);
    int word = count_words(n, text);
    int sentence = count_sentences(n, text);
    
    float L = (letter*100)/word;
    float S = (sentence*100)/word;

    int index = round((0.0588 * L) - (0.296 * S) - 15.8);

    if (index < 1)
    {
        printf("Before Grade 1\n");
    }
    else if (index > 16)
    {
        printf("Grade 16+\n");
    }
    else
    {
        printf("Grade %i\n", index);
    }

}

int count_letters(int length , char arr[])
{
    int letters = 0;
    for ( int i = 0 ; i < length ;  i++)
    {

        if (tolower(arr[i]) >= 'a' && tolower(arr[i]) <= 'z' )
        {
            letters++ ;
        }

    }

    return letters;
}

int count_words(int length , char arr[])
{
    int words = 1 ;
    for (int i =0 ; i < length ; i++)
    {
        if (arr[i]== ' ')
        {
            words++;
        }
    }
    return words;
}

int count_sentences(int length, char arr[])
{
    int sentence = 0;
    for (int i = 0 ; i <length ; i++)
    {
        if (arr[i] == '.')
        {
           sentence ++;
        }
        else if (arr[i] == '?')
        {
            sentence ++;
        }
        else if ( arr[i] == '!')
        {
            sentence++;
        }
    }
    return sentence;
}`

Answer 1

尝试一下（更改）

float L = (letter / (float) word) * 100;
float S = (sentence / (float) word) * 100;

变量“ word”需要指定为浮点数。我有同样的问题。

Answer 2

#include <stdio.h>
#include <cs50.h>
#include <string.h>
#include <ctype.h>
#include <math.h>

int count_letters(int length, char arr[]);
int count_words(int length, char arr[]);
int count_sentences(int n, char arr[]);

int main(void)
{
    // Getting Input from user
    string text = get_string("Text: ");

    // Length of text
    int  n = strlen(text);
    
    //Calculating Coleman-Liau index 
    float L = ((float)count_letters(n, text) / (float)count_words(n, text)) * 100;
    float S = ((float)count_sentences(n, text) / (float)count_words(n, text)) * 100;
    
    int index = round((0.0588 * L) - (0.296 * S) - 15.8);
    
    // Print Grades
    if (index < 1)
    {
        printf("Before Grade 1\n");
    }
    else if (index > 16)
    {
        printf("Grade 16+\n");
    }
    else
    {
        printf("Grade %i\n", index);
    }

}

int count_letters(int length, char arr[])
{
    int letters = 0; // Letter counter 
    for (int i = 0 ; i < length ;  i++)
    {

        if (tolower(arr[i]) >= 'a' && tolower(arr[i]) <= 'z')
        {
            letters++ ;
        }

    }

    return letters;
}

int count_words(int length, char arr[])
{
    int words = 1 ; // word counter
    for (int i = 0 ; i < length ; i++)
    {
        if (arr[i] == ' ')
        {
            words++;
        }
    }
    return words;
}

int count_sentences(int length, char arr[])
{
    int sentence = 0; // sentence counter
    for (int i = 0 ; i < length ; i++)
    {
        if (arr[i] == '.' || arr[i] == '?' || arr[i] == '!')
        {
            sentence ++;
        }
    }
    
    return sentence;
}

CS50可读性pset2中的错误

2 个答案: