#include "stdio.h"
#include "string.h"
#include "math.h"

#define MAX_BITS 32
#define BASE 2
#define BIAS 127

int main()
{
    char input_bits[MAX_BITS + 1];
    int sinal, i, j, count = 0, sum = 0, expoente, absE;

    printf("enter IEEE 754 single-precision float in binary: \n");
    scanf("%s", input_bits);

    sinal = input_bits[0] - '0';

    for(i = 8; i > 0; i--, count ++)
    {
        sum += (input_bits[i] - '0') * (int)(pow(BASE, count));
    }

    expoente = sum - BIAS;
    absE = abs(expoente);

    printf("sinal = %d\nexpoente = %d\nmantisa = ", sinal, expoente);

    for(i = 9; i <= MAX_BITS; i++)
    {
        printf("%c", input_bits[i]);
    }

    printf("\n");

    if(sinal == 1)
    {
        printf("-");
    }

    if(expoente < 0)
    {
        printf("0.1");
        for(i = absE - 1; i > 0; i--)
        {
            printf("0");
        }
        for(i = 9; i <= MAX_BITS; i++)
        {
            printf("%c", input_bits[i]);
        }
    }
    if(expoente > 0)
    {
        printf("1");
        j = 9;
        for(i = 9; i < MAX_BITS && absE > 0; i++)
        {
            printf("%c", input_bits[i]);
            absE--;
            j++;
        }

        printf(".");
        printf("(%d %d)", i,j);
        printf("%s\n", input_bits);

        for(i = j; i <= MAX_BITS; i++);
        {
            printf("%d\n", MAX_BITS);
            printf("hello\n");
            printf("%c", input_bits[i]);
        }
    }
    if(expoente == 0)
    {
        printf("0.");
        for(i = 9; i <= MAX_BITS; i++)
        {
            printf("%c", input_bits[i]);
        }
    }
    printf("\n");
    return 0;
}