题解 | #买房子#

# include<stdio.h>
int main() {
    int n, k;
    while (scanf("%d %d", &n, &k) != EOF) {
        int sum = 0;
        float price = 200;
        int flag = 0;
        for (int i = 1; i <= 21; i++) {

            sum += n;
            if (sum >= price) {
                printf("%d\n", i);
                flag = 1;
                break;
            }

            price = (1 + k / float(100)) * price;

        }
        if (flag == 0)
            printf("Impossible\n");


    }



}