#define _CRT_SECURE_NO_WARNINGS
#include<stdio.h>
#include<stdbool.h>
#include<stdlib.h>
int baseToInt(char* str, int base);
int mypow(int n, int k);

void main()
{
    int base;
    char *str;
    char* value;
    printf("**************************************************************\n");
    printf("Select input format (2-binary, 8-octal, 10-decimal, 16 hexadecimal, 0-exit):");
    scanf("%d", &base);
    str = (char*)malloc(32 * sizeof(char));
    if (base != 16)
    {
        printf("\nEnter value in the specified format:");
        if (str == NULL)
            printf("Not enough memory\n"); // if string null print not enough and finish.
        scanf("%s", str);
    }
    if (base == 16)
    {
        printf("\nEnter value in the specified format:");
        if (str == NULL)
            printf("Not enough memory\n"); // if string null print not enough and finish.
        scanf("%s", str + '\0');
    }

    value = baseToInt(str,base);
    printf("\nEntered value is : %d",value);
    free(str);

}

int baseToInt(char* str, int base)
{
    char *num;
    num = (char*)malloc(32 * sizeof(char));
    if (base == 2)
    {
        if (str == 0)
            num = 0;
        num = *str % 2 + 10 * (baseToInt(*str / 2, base));

    }
    if (base == 8)
    {
        if (str == 0)
            num == 0;
        num = *str % 8;
        *str /= 8;
        baseToInt(*str, base);

    }

    if (base == 10)
    {
        num = str;

    }
    if (base == 16)
    {



    }
    return num;
}
/*
int mypow(int n,int k)
{
    if (k == 0)
        return 1;
        return power(n, k - 1) * n;
}
*/



/*
**************************************************************
Select input format (2-binary, 8-octal, 10-decimal, 16 hexadecimal, 0-exit):
Enter value in the specified format:
Entered value is:
Binary form:
Octal form:
Decimal form:
Hexadecimal form:
FINISH
*/