Question

#include <cstring>
#include <stdio.h>
#include <iostream>

using namespace std;

int main()
{
  
    const int SIZE = 20;
    char str[SIZE];
    char str1[SIZE];
    int n;
    int k =1;
  
    printf("Enter a word: \n");
    fgets(str,SIZE,stdin);
    printf("Enter another word: \n");
    fgets(str1,SIZE,stdin);
  
    if (str1[strlen(str1) - 1] == '\n')
    {
        str1[strlen(str1)-1] = '\0';
    }
    if (str[strlen(str) - 1] == '\n')
    {
        str[strlen(str)-1] = '\0';
    }
  
  
    printf("Enter a number between 1 and 20: \n");
    scanf("%d",&n);
    strcat(str, " ");
    strncat(str, str1,n);
    printf("%s", str);
  
    printf("\n");
  
    str[0] = toupper(str[0]);
    for (int i = 1; i < strlen(str); i++)
    {
        str[i] = tolower(str[i]);
        if(str[i-1] == ' ')
        {
            str[i]= toupper(str[i]);
        }
    }
    for (int j = 1; j < strlen(str); j ++)
    {
        for (int i = 1; i < strlen(str); i++)
        {
           // if(str[i]!= '\0')
            {
                if(!strstr(str, "here"))
                {
                    k++;
                 
                }
              if(strchr(str,'\0'))
                {
                    break;
                }
              
           }
        }
       
      
      
    }
    cout << "Found "<< k << " words 'here' in: \n" << str;
  
    return 0;
}

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so im practicing working on c++ with c-strings and i when i compile and run this, at the end the loop iterates one time for the entire length of the cstring and i cannot figure out how to end it after finding the 'k' amount of times the word "here" is in the string.

Answer 1

check out the solution.

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CODE:

#include <cstring>
#include <stdio.h>
#include <iostream>

using namespace std;

int main()
{
  
const int SIZE = 20;
char str[SIZE];
char str1[SIZE];
int n;
int k = 0;
  
printf("Enter a word: \n");
fgets(str,SIZE,stdin);
printf("Enter another word: \n");
fgets(str1,SIZE,stdin);
  
if (str1[strlen(str1) - 1] == '\n')
{
str1[strlen(str1)-1] = '\0';
}
if (str[strlen(str) - 1] == '\n')
{
str[strlen(str)-1] = '\0';
}
  
  
printf("Enter a number between 1 and 20: \n");
scanf("%d",&n);
strcat(str, " ");
strncat(str, str1,n);
printf("%s", str);
  
printf("\n");
  
str[0] = toupper(str[0]);
for (int i = 1; i < strlen(str); i++)
{
str[i] = tolower(str[i]);
if(str[i-1] == ' ')
{
str[i]= toupper(str[i]);
}
}
// loop through all characters in string till strlen-4
for (int i=0; i<=(strlen(str)-4); i++)
{
// search for characters 'here' as here is converted to 'Here' in above code so check for 'Here' instead ' here'
if(str[i] == 'H' && str[i+1] == 'e' && str[i+2] == 'r' && str[i+3] == 'e')
k++;
}
  
cout << "Found "<< k << " words 'here' in : " << str;
  
return 0;
}

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OUTPUT :

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