f444: 10268 - 498-bis

解題心得

CPE 的系統跟 zerojudge 的測資格式不太一樣，後者好像不是用 \n 換行，只好再用別的方法寫。

程式碼

[for CPE]

#include <iostream>
#include <vector>
#include <math.h>
using namespace std;

int main()
{
	long long int x, a;
	while (cin >> x)
	{
		vector<long long int> bits;
		long long int ans = 0;
		while (cin >> a && getchar() != '\n')
			bits.push_back(a);
		for (int i = 0; i < bits.size(); i++)
		{
			bits[i] *= bits.size() - i;
			ans += bits[i] * pow(x, bits.size() - 1 - i);
		}
		cout << ans << endl;
	}
	return 0;
}

[for ZJ]

#include <iostream>
#include <vector>
#include <sstream>
#include <math.h>
#include <string>
using namespace std;

int main()
{
	long long int x, a;
	string s;
	while (cin >> x)
	{
		vector<long long int> bits;
		long long int ans = 0;
		cin.ignore();
		getline(cin, s);
		stringstream ss(s);
		while (ss >> a)
			bits.push_back(a);
		bits.pop_back();
		for (int i = 0; i < bits.size(); i++)
		{
			bits[i] *= bits.size() - i;
			ans += bits[i] * pow(x, bits.size() - 1 - i);
		}
		cout << ans << endl;
	}
	return 0;
}