9 条题解

  • 10
    @ 2023-5-11 21:38:28

    给大家发个精简版,在这段代码中,我使用了 cmath 库中的 M_PI 常量和 ceil() 函数~

    #include <iostream>
    #include <cmath>
    using namespace std;
    int main()
    {
        int h, r;
        cin >> h >> r;
        double v = M_PI * r * r * h; // 求小圆桶的体积
        int n = ceil(20000.0 / v);  // 上取整求需要的桶数
        cout << n << endl;
        return 0;
    }
    

    经典数学问题不必多说了吧……^_^

  • 2
    @ 2023-1-23 15:07:05
    #include <iostream>
    using namespace std;
    int main(){
        int h,r;
        cin>>h>>r;
        cout<<(int)(20*1000/(3.141592653589793238462643*r*r*h)+1);
    }
    
    
    • 1
      @ 2023-6-10 11:10:20
      #include <stdio.h>
      int main()
      {
      	int h, r, x, v;
      	double PI = 3.14159;
      	scanf("%d %d",&h,&r);
      	v = PI * r * r * h;
      	x = 20000 / v;
      	printf("%d",(int)(x)+1);
      	return 0;
      }
      
      • 1
        @ 2022-11-13 12:39:11
        #include <stdio.h>
        #include <iostream>
        using namespace std;
        int main()
        {
            int h,r;
            cin >> h >> r;
            int c;
            c =  3.14159 * r * r * h ;
            int d;
            d = 20 * 1000 / c;
            cout << d + 1 << endl;
            
        }
        
        • 0
          @ 2025-7-9 17:19:44

          #include #include #include using namespace std; int main() {

          int a,b;
          cin>>a>>b;
          double v=3.14159*b*b*a;
          cout<<ceil(20.0*1000/v)<<endl;
          return 0;
          

          }

          • -1
            @ 2025-5-14 21:08:40

            这里的PI我用了前80位的

            # include <bits/stdc++.h>
            
            using namespace std;
            const double PI=3.141592653589793238462643383279502884197169399375105820979230781640628620899;
            int main(){
            	int h,r,d,ans;
            	cin>>h>>r;
            	d=r*r*PI*h;
            	ans=20*1000/d;
            	cout<<ans+1<<endl;
            	return 0;
            }
            
            • -2
              @ 2022-7-17 11:02:52
              
              #include <bits/stdc++.h>
              using namespace std;
              int main()
              {
                  int a,b;
                  cin>>a>>b;
                  double v=3.14159*b*b*a;
                  cout<<ceil(20.0*1000/v)<<endl;
                  return 0;
              }
              
              
              • -3
                @ 2022-8-2 9:51:15
                #include <bits/stdc++.h>
                using namespace std;
                int main()
                {
                    int a,b;
                    cin>>a>>b;
                    double v=3.14159*b*b*a;
                    cout<<ceil(20.0*1000/v)<<endl;
                    return 0;
                }
                
                • -4
                  @ 2022-7-17 11:03:15
                  #include <bits/stdc++.h>
                  using namespace std;
                  int main()
                  {
                      int a,b;
                      cin>>a>>b;
                      double v=3.14159*b*b*a;
                      cout<<ceil(20.0*1000/v)<<endl;
                      return 0;
                  }
                  
                  
                  • 1

                  信息

                  ID
                  818
                  时间
                  1000ms
                  内存
                  128MiB
                  难度
                  5
                  标签
                  递交数
                  1276
                  已通过
                  524
                  上传者