답안 #20061

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
20061	2016-02-25T08:58:32 Z	gs13068	로봇 (kriii4_F)	C++	0 / 100	1000 ms	1084 KB

F

#include <cstdio>

const int p = 1000000007;

using namespace std;

int f(int x, int y)
{
	return y & 1 ? (long long)f(x, y ^ 1)*x%p : y ? f((long long)x*x%p, y >> 1) : 1;
}

int px[4] = { 1,0,-1,0 };
int py[4] = { 0,1,0,-1 };

int L, R, M;

int g(int n, int x, int y, int z)
{
	if (n == 0) return x*x + y*y;
	int a = (long long)g(n - 1, x + px[z], y + py[z], z) * M % p;
	z = z + 1 & 3;
	int b = (long long)g(n - 1, x + px[z], y + py[z], z) * L % p;
	z = z + 2 & 3;
	int c = (long long)g(n - 1, x + px[z], y + py[z], z) * R % p;
	return ((long long)a + b + c) * f(L + R + M, p - 2) % p;
}

int main()
{
	int n;
	scanf("%d%d%d%d", &n, &L, &M, &R);
	printf("%d", g(n, 0, 0, 0));
}

Subtask #1

0.0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	33 ms	1084 KB	Output is correct
2	Correct	0 ms	1084 KB	Output is correct
3	Correct	0 ms	1084 KB	Output is correct
4	Correct	97 ms	1084 KB	Output is correct
5	Correct	0 ms	1084 KB	Output is correct
6	Correct	0 ms	1084 KB	Output is correct
7	Correct	97 ms	1084 KB	Output is correct
8	Correct	0 ms	1084 KB	Output is correct
9	Correct	0 ms	1084 KB	Output is correct
10	Correct	291 ms	1084 KB	Output is correct
11	Correct	0 ms	1084 KB	Output is correct
12	Correct	0 ms	1084 KB	Output is correct
13	Correct	93 ms	1084 KB	Output is correct
14	Correct	0 ms	1084 KB	Output is correct
15	Correct	0 ms	1084 KB	Output is correct
16	Correct	97 ms	1084 KB	Output is correct
17	Correct	0 ms	1084 KB	Output is correct
18	Correct	0 ms	1084 KB	Output is correct
19	Correct	11 ms	1084 KB	Output is correct
20	Correct	0 ms	1084 KB	Output is correct
21	Correct	0 ms	1084 KB	Output is correct
22	Correct	0 ms	1084 KB	Output is correct
23	Correct	0 ms	1084 KB	Output is correct
24	Correct	0 ms	1084 KB	Output is correct
25	Correct	32 ms	1084 KB	Output is correct
26	Correct	0 ms	1084 KB	Output is correct
27	Correct	0 ms	1084 KB	Output is correct
28	Correct	32 ms	1084 KB	Output is correct
29	Correct	873 ms	1084 KB	Output is correct
30	Execution timed out	1000 ms	1080 KB	Program timed out

Subtask #2

0.0 / 96.0

#	결과	실행 시간	메모리	Grader output
1	Halted	0 ms	0 KB	-