View Code of Problem 96

#include<iostream>
#include<limits>
#include<cmath>

using namespace std;

int main() {
	long long int gap;
	int n;
	string d;

	while (cin >> n) {
		if (n == 0) {
			return 0;
		}
		cin >> d;
		if (d == "B") {
			gap = 0;
		}
		else if (d == "KB") {
			gap = 1024 - 1000;
		}
		else if (d == "MB") {
			gap = pow(1024, 2) - pow(1000, 2);
		}
		else if (d == "GB") {
			gap = pow(1024, 3) - pow(1000, 3);
		}
		else if (d == "TB") {
			gap = pow(1024, 4) - pow(1000, 4);
		}
		gap *= n;

		cout << gap << endl;
	}
}