转载自:https://blog.youkuaiyun.com/lyy289065406/article/details/6642603
#include <iostream>
using namespace std;
int main(void) {
int s, d;
while(cin >> s >> d) {
int surplus = 0; // 全年盈余
if(4 * s < d) {
surplus = 10 * s - 2 * d;
} else if(3 * s < 2 * d) {
surplus = 8 * s - 4 * d;
} else if(2 * s < 3 * d) {
surplus = 6 * s - 6 * d;
} else if(s < 4 * d) {
surplus = 3 * s - 9 * d;
} else {
surplus = -1;
}
if(surplus < 0) {
cout << "Deficit" << endl;
} else {
cout << surplus << endl;
}
}
return 0;
}