#include<iostream> using namespace std; int main(){ double pi=3.14159; int h,r; cin >> h >> r; double V=pihr*r; int t=20000/V+1; cout << t << endl; return 0; }

#include<iostream> using namespace std; int main(){ double pi=3.14159; int h,r; cin >> h >> r; double V=pihr*r; int t=20000/V+1; cout << t << endl; return 0; }

#include<iostream> using namespace std; int main(){ double pi=3.14159; int h,r; cin >> h >> r; double V=pihr*r; int t=20000/V+1; cout << t << endl; return 0; }

#include<bits/stdc++.h> using namespace std; int main(){ double a,b,c; cin>>a>>b; c=abb*3.14159; cout<<ceil(20000/c); return 0; }

#include <bits/stdc++.h> using namespace std; int main(){ double t1,h,r,t2; cin >> h >> r; t1=rr3.14159*h; cout << ceil(20000/t1); return 0; }

#include<iostream> using namespace std; int main(){ double pi=3.14159; int h,r; cin >> h >> r; double V=hrr*pi; int t=20000/V+1; cout << t << endl; return 0; }

#include <iostream> #include <cmath> using namespace std; int num(int r, int h) { double sum = r * r * M_PI * h; int m = ceil(20000 / sum); return m; } int main() { int r, h; cin >> h >> r; cout << num(r, h) << endl; return 0; }

//20L=20000mL #include<bits/stdc++.h> using namespace std; int main(){ int h,r; cin>>h>>r; double a=3.14159rr*h; cout<<int(20000/a+1); return 0; }

首先先输出2个整数，向上取整拿20升水/水桶数量 代码如下： #include<bits/stdc++.h> using namespace std; int h,r,c; double a=3.14159; int main(){ cin>>h>>r; cout<<ceil(20000/(arr*h)); }

#include<iostream> using namespace std; int main(){ double pi=3.14159; int h,r; cin >> h >> r; double V=h * r * r * pi; int t=20000/V+1; cout << t << endl; return 0; }