Submission #968367


Source Code Expand

#include "bits/stdc++.h"
using namespace std;

#define int long long
#define DEBUG 0
#define rep(i,a,b) for(int i=(a);i<(b);i++)
#define rrep(i,a,b) for(int i=(b)-1;i>=(a);i--)
#define all(a) (a).begin(),(a).end()
#define dump(o) if(DEBUG){cerr<<#o<<" "<<o<<endl;}
#define dumpc(o) if(DEBUG){cerr<<#o; for(auto &e:(o))cerr<<" "<<e;cerr<<endl;}
using ll = long long; using ull = unsigned long long; using pii = pair<int, int>;
static const int INF = 0x3f3f3f3f; static const long long INFL = 0x3f3f3f3f3f3f3f3fLL;
static const int MOD = 1e9 + 7;



signed main() {
	cout << fixed << setprecision(10);
	int R, N, M; cin >> R >> N >> M;
	double ans = 0;
	rep(i, 1, N + M) {
		double a = max(R - (double)(2 * R)*i / N, (double)(2 * R)*i / N - R);
		double b = max(R - (double)(2 * R)*(i - M) / N, (double)(2 * R)*(i - M) / N - R);
		double c = i - M < 0 ? a : min(a, b);
		double d = sqrt(R*R - c*c) * 2;
		dump(a);
		dump(b);
		dump(c);
		dump(d);
		ans += d;
	}
	cout << ans << endl;
	return 0;
}

Submission Info

Submission Time
Task B - ステップカット
User minaminao
Language C++14 (GCC 5.4.1)
Score 200
Code Size 1027 Byte
Status AC
Exec Time 5 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 2 ms 256 KB
00_example_02.txt AC 2 ms 256 KB
00_example_03.txt AC 4 ms 256 KB
10_rand_01.txt AC 2 ms 256 KB
10_rand_02.txt AC 2 ms 256 KB
10_rand_03.txt AC 3 ms 256 KB
10_rand_04.txt AC 2 ms 256 KB
10_rand_05.txt AC 2 ms 256 KB
10_rand_06.txt AC 2 ms 256 KB
10_rand_07.txt AC 3 ms 256 KB
10_rand_08.txt AC 3 ms 256 KB
20_hand_01.txt AC 4 ms 256 KB
20_hand_02.txt AC 5 ms 256 KB
20_hand_03.txt AC 4 ms 256 KB
20_hand_04.txt AC 2 ms 256 KB
20_hand_05.txt AC 2 ms 256 KB