squareRoot using bruteForce.c

//input number and precision places -> output square root using brute force
#include<stdio.h>
#include<string.h>
typedef long double LD;

int main()
{
    LD a = 0, adder = 0.1;
    int n, p = 0;
    char format[99] = {0};
    scanf_s("%d%d", &n, &p);
    strcat_s(format, 99, "\n%");
    sprintf_s(format + 2, 97, ".%d", p);
    strcat_s(format, 99, "lf");
    while (p-- > 0)adder /= 10;
    while ((a * a) < (LD)n)a += adder;
    printf(format, a);
    return 0;
}