车上人数 上车人数

a a

a y

2a a+y

2a+y a+2y

3a+2y 2a+3y

4a+4y 3a+5y

6a+7y 5a+8y

9a+12y 8a+13y

14a+20y 13a+21y

22a+33y 21a+34y

---

4a+4y=32 y=3

code:

#include
    
     using namespace std;double now[10005];double shang[10005];int main(){    double a,m;    int n,x;    scanf("%lf%d%lf%d",&a,&n,&m,&x);    now[1]=1;    now[2]=1;    now[3]=2;    for(int i=4;i