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- #include <iostream>
- #include <cmath>
- using namespace std;
- int convertBinarytoOctal(long long);
- int main()
- {
- long long binaryNumber;
- cout << "Enter a binary number: ";
- cin >> binaryNumber;
- cout << binaryNumber << " in binary = " << convertBinarytoOctal(binaryNumber) << " in octal ";
- return 0;
- }
- int convertBinarytoOctal(long long binaryNumber)
- {
- int octalNumber = 0, decimalNumber = 0, i = 0;
- while(binaryNumber != 0)
- {
- decimalNumber += (binaryNumber%10) * pow(2,i);
- ++i;
- binaryNumber/=10;
- }
- i = 1;
- while (decimalNumber != 0)
- {
- octalNumber += (decimalNumber % 8) * i;
- decimalNumber /= 8;
- i *= 10;
- }
- return octalNumber;
- }
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