Count the occurance of the string without using built-in function?

Question

Sreevatsa J · Accepted Answer

#include 
#include 
 
char str[100], sub[100];
int count = 0, count1 = 0;
 
void main()
{
    int i, j, l, l1, l2;
 
    printf("
Enter a string : ");
    scanf("%[^
]s", str);
 
    l1 = strlen(str);
 
    printf("
Enter a substring : ");
    scanf(" %[^
]s", sub);
 
    l2 = strlen(sub);
 
    for (i = 0; i < l1;)
    {
        j = 0;
        count = 0;
        while ((str[i] == sub[j]))
        {
            count++;
            i++;
            j++;
        }
        if (count == l2)
        {
            count1++;                                   
            count = 0;
        }
        else
            i++;
    }    
    printf("%s occurs %d times in %s", sub, count1, str);
}

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