#include <stdio.h>
#include <stdlib.h>

int len(long nb){
    int len;
    len = 0;
    if (nb < 0){
        nb = nb * -1;
        len++;
    }
    if (nb == 0)
        return (1);
    while (nb > 0){
        nb = nb / 10;
        len++;
    }
    return (len);
}
char* ft_itoa(int nb){
    char *str;
    int i;

    if (nb <= -2147483648){
        return "-2147483648";
    }
    i = len(nb);
    if (!(str = (char *)malloc(sizeof(char) * (i + 1))))
        return (NULL);
    str[i--] = '\0';
    if (nb == 0){
        str[0] = 48;
        return (str);
    }
    if (nb < 0){
        str[0] = '-';
        nb = nb * -1;
    }
    while (nb > 0){
        str[i] = '0' + (nb % 10);
        nb = nb / 10;
        i--;
    }
    return (str);
}
int main(){
    int n = 2147483648;
    printf("%s\n", ft_itoa(n));
    return 0;
}