Conversao Ii

[balduino]

#include<stdio.h>

#include<stdlib.h>

void main()

{

long int dec,n=0,total_e,i=0;

int temp[20],bin[20];

printf("numero decimal: ");

scanf("%ld",&dec);

fflush(stdin);

if(dec<0)

return;

if(dec==0)

{

printf("numero binario: 0\n");

system("pause");

return;

}

printf("numero binario: ");

while(dec>0)

{

temp[i++]=dec%2;

dec=dec/2;

}

total_e=i;

while(n<total_e)

{

bin[n]=temp[--i];

printf("%d",bin[n]);

n++;

}

printf("\n");

system("pause");

}

[iSoron]

Em C++:

#include <iostream>
#include <string>
using namespace std;

string dec_to_binary(long c) {
    string result;
    do result.insert(result.begin(), (c%2) + '0'); while((c = c>>1) >= 1);
    return result;
}

long binary_to_dec(string bin) {
    long dec = 0;
    for(int i = 0; i < bin.length(); i++) {
        dec *= 2;
        if(bin[i] - '0') dec++;
    }
    return dec;
}

int main() {
    cout << dec_to_binary(10) << endl;
    cout << binary_to_dec("1010") << endl;
}