#include <iostream> using namespace std; int main() { int N, K; cin >> N >> K; double salary = N; double price = 200; int year = 1; while (year <= 20) { // 题目规定了最长20年 if (salary >= price) { cout << year << endl; return 0; } salary += N; price *= (1 + K / 100.0); year++; } cout << "Impossible" << endl; return 0; }
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