String Sorting

#include <stdio.h>
int main()
{
    char str[100],temp;
    int l,i,j;
    printf("Enter a string.\n");
    fgets(str,sizeof(str),stdin);
    for(l=0;str[l]!='\0';l++)
    {}
    printf("\nIt has %d characters.\n",l-1);
    for (i = 0; i <(l-2); i++)
    {
        for (j = 0; j <(l-i-2); j++)
        {
            if (str[j] > str[j+1])
             {
                temp = str[j];
                str[j] = str[j+1];
                str[j+1] = temp;
            }
        }
    }
        printf("\nArranging alphabetically, we get %s.",str);
    return 0;
}
//Output
//Enter a string.
//programming

//It has 11 characters.

//Arranging alphabetically, we get aggimmnoprr.