Submission #6773935


Source Code Expand

#include <iostream>
#include <cstdio>
#include <cstdlib>
#include <string>
#include <cstring>
#include <cstdint>
#include <vector>
#include <algorithm>
#include <cmath>
#include<iomanip>
using namespace std;
static const long long MOD = 1000000007LL;
typedef long long ll;

int main()
{
	double r,n,m;
	cin>>r>>n>>m;

		double sum=0;
		for(int i=1;i<=n+m-1;i++)
		{
			double a;
			double b;
			if(i>=1&&i<=n-1)
			 a=sqrt(abs(r*r-(i*2*r/n-r)*(i*2*r/n-r)));
			else
				a=0;
			if(i-m>=1&&i-m<=n-1)
			 b=sqrt(abs(r*r-((i-m)*2*r/n-r)*((i-m)*2*r/n-r)));
			else
				b=0;
			 double c= max(a,b);
			
			sum+=2*c;
		}
	cout<<setiosflags(ios::fixed)<<setprecision(20)<<sum<<endl;


	return 0;
}

Submission Info

Submission Time
Task B - ステップカット
User conan1024hao
Language C++14 (GCC 5.4.1)
Score 200
Code Size 730 Byte
Status AC
Exec Time 3 ms
Memory 256 KB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 200 / 200
Status
AC × 3
AC × 16
Set Name Test Cases
Sample 00_example_01.txt, 00_example_02.txt, 00_example_03.txt
All 00_example_01.txt, 00_example_02.txt, 00_example_03.txt, 10_rand_01.txt, 10_rand_02.txt, 10_rand_03.txt, 10_rand_04.txt, 10_rand_05.txt, 10_rand_06.txt, 10_rand_07.txt, 10_rand_08.txt, 20_hand_01.txt, 20_hand_02.txt, 20_hand_03.txt, 20_hand_04.txt, 20_hand_05.txt
Case Name Status Exec Time Memory
00_example_01.txt AC 1 ms 256 KB
00_example_02.txt AC 1 ms 256 KB
00_example_03.txt AC 3 ms 256 KB
10_rand_01.txt AC 1 ms 256 KB
10_rand_02.txt AC 1 ms 256 KB
10_rand_03.txt AC 2 ms 256 KB
10_rand_04.txt AC 1 ms 256 KB
10_rand_05.txt AC 1 ms 256 KB
10_rand_06.txt AC 1 ms 256 KB
10_rand_07.txt AC 2 ms 256 KB
10_rand_08.txt AC 1 ms 256 KB
20_hand_01.txt AC 3 ms 256 KB
20_hand_02.txt AC 3 ms 256 KB
20_hand_03.txt AC 3 ms 256 KB
20_hand_04.txt AC 1 ms 256 KB
20_hand_05.txt AC 1 ms 256 KB