remove_space.c

#include <stdio.h>
#include <string.h>

void remove_space(char *s, char *result)
{
    int i = 0, j = 0;
    while (s[i] != '\0')
    {
        if (s[i] != ' ')
        {
            result[j++] = s[i];
        }
        i++;
    }
}

int main(void)
{
    char str[50], result[50];

    printf("\nEnter any string: ");
    gets(str);

    printf("\nThe string is : \n");
    puts(str);

    remove_space(str, result);
    printf("\nThe string without spaces is : \n");
    puts(result);

    return 0;
}