CSP-201803-1-跳一跳

解题代码

#include <iostream>
using namespace std;

int score, s, last_s = -1;

int main() {
	while (true)
	{
		cin >> s;
		if (s == 0) break;
		else if (s == 1) {
			score += s;
			last_s = s;
		}
		else if (s == 2) {
			if (last_s>=2)
			{
				score += last_s;
				last_s += 2;
			}
			else
			{
				score += s;
				last_s = s + 2;
			}	
		}
	}
	cout << score;
	return 0;
}