Submission #123048


Source Code Expand

#include <string>
#include <vector>
#include <cmath>
#include <ctime>
#include <iostream>
#include <cstdio>
#include <set>
#include <map>
#include <queue>
#include <sstream>
#include <algorithm>
#include <numeric>
#include <cstring>
using namespace std;
typedef long long ll;

const ll MOD = 1000000007;
ll C[1000][1000];

void init(){
	for(int n=0;n<1000;n++){
		for(int k=0;k<=n;k++){
			if(k == 0 || k == n){
				C[n][k] = 1;
			} else {
				C[n][k] = (C[n-1][k] + C[n-1][k-1]) % MOD;
			}
		}
	}
}

ll sub(int N, int D, int L){
	if(N < 0 || D < 0 || L < 0 || D + L > N)return 0;

	ll res = 1;
	res = (res * C[N][D]) % MOD;
	res = (res * C[N - D][L]) % MOD;

	return res;
}

ll solve(int X, int Y, int D, int L){
	if(X > Y){
		swap(X, Y);
	}

	int N = X * Y;

	ll res = 0;
	if(X == 1 && Y == 1){
		if(D == 1)++res;
		if(L == 1)++res;
		return res;
	}

	if(X == 1){
		res = (res + sub(N - 2, D - 2, L)) % MOD;
		res = (res + sub(N - 2, D, L - 2)) % MOD;
		res = (res + sub(N - 2, D - 1, L - 1) * 2) % MOD;
		return res;
	}

	for(int a=1;a<=X;a++)for(int b=1;b<=Y;b++)for(int c=1;c<=X;c++)for(int d=1;d<=Y;d++){
		if(a < X && b == 1)continue;
		if(b < Y && c == 1)continue;
		if(c < X && d == 1)continue;
		if(d < Y && a == 1)continue;

		int cnt = 4;
		if(a == X && b == 1)--cnt;
		if(b == Y && c == 1)--cnt;
		if(c == X && d == 1)--cnt;
		if(d == Y && a == 1)--cnt;

		for(int m=0;m<1<<cnt;m++){
			int dd = D, ll = L;
			for(int i=0;i<cnt;i++){
				if((m >> i) & 1){
					--dd;
				} else {
					--ll;
				}
			}
			int rest = X * Y;
			rest -= (X - a);
			rest -= (Y - b);
			rest -= (X - c);
			rest -= (Y - d);
			rest -= cnt;

			res = (res + sub(rest, dd, ll)) % MOD;
		}
	}

	return res;
}
int main(){
	init();

	int R, C, X, Y, D, L;
	cin >> R >> C >> X >> Y >> D >> L;

	ll sub = solve(X, Y, D, L);
	ll p = (R - X + 1) * (C - Y + 1);

	ll res = (sub * p) % MOD;
	cout << res << endl;

	return 0;
}

Submission Info

Submission Time
Task D - AtCoder社の冬
User kroton
Language C++ (G++ 4.6.4)
Score 101
Code Size 2018 Byte
Status AC
Exec Time 366 ms
Memory 7712 KB

Judge Result

Set Name sub All
Score / Max Score 100 / 100 1 / 1
Status
AC × 25
AC × 52
Set Name Test Cases
sub 00_sample_01E.txt, 00_sample_02E.txt, 00_sample_03E.txt, test_03E.txt, test_04E.txt, test_07E.txt, test_08E.txt, test_11E.txt, test_12E.txt, test_15E.txt, test_16E.txt, test_19E.txt, test_20E.txt, test_23E.txt, test_24E.txt, test_27E.txt, test_28E.txt, test_31E.txt, test_32E.txt, test_36E.txt, test_37E.txt, test_38E.txt, test_39E.txt, test_45E.txt, test_47E.txt
All 00_sample_01E.txt, 00_sample_02E.txt, 00_sample_03E.txt, 00_sample_04.txt, test_01.txt, test_02.txt, test_03E.txt, test_04E.txt, test_05.txt, test_06.txt, test_07E.txt, test_08E.txt, test_09.txt, test_10.txt, test_11E.txt, test_12E.txt, test_13.txt, test_14.txt, test_15E.txt, test_16E.txt, test_17.txt, test_18.txt, test_19E.txt, test_20E.txt, test_21.txt, test_22.txt, test_23E.txt, test_24E.txt, test_25.txt, test_26.txt, test_27E.txt, test_28E.txt, test_29.txt, test_30.txt, test_31E.txt, test_32E.txt, test_33.txt, test_34.txt, test_35.txt, test_36E.txt, test_37E.txt, test_38E.txt, test_39E.txt, test_40.txt, test_41.txt, test_42.txt, test_43.txt, test_44.txt, test_45E.txt, test_46.txt, test_47E.txt, test_48.txt
Case Name Status Exec Time Memory
00_sample_01E.txt AC 33 ms 7576 KB
00_sample_02E.txt AC 33 ms 7588 KB
00_sample_03E.txt AC 47 ms 7588 KB
00_sample_04.txt AC 139 ms 7588 KB
test_01.txt AC 35 ms 7672 KB
test_02.txt AC 35 ms 7652 KB
test_03E.txt AC 33 ms 7672 KB
test_04E.txt AC 88 ms 7588 KB
test_05.txt AC 33 ms 7588 KB
test_06.txt AC 192 ms 7668 KB
test_07E.txt AC 37 ms 7656 KB
test_08E.txt AC 47 ms 7596 KB
test_09.txt AC 58 ms 7712 KB
test_10.txt AC 123 ms 7588 KB
test_11E.txt AC 44 ms 7592 KB
test_12E.txt AC 78 ms 7588 KB
test_13.txt AC 35 ms 7712 KB
test_14.txt AC 343 ms 7584 KB
test_15E.txt AC 107 ms 7584 KB
test_16E.txt AC 352 ms 7588 KB
test_17.txt AC 33 ms 7584 KB
test_18.txt AC 35 ms 7592 KB
test_19E.txt AC 33 ms 7596 KB
test_20E.txt AC 34 ms 7588 KB
test_21.txt AC 35 ms 7584 KB
test_22.txt AC 122 ms 7668 KB
test_23E.txt AC 33 ms 7596 KB
test_24E.txt AC 202 ms 7588 KB
test_25.txt AC 41 ms 7592 KB
test_26.txt AC 34 ms 7592 KB
test_27E.txt AC 79 ms 7588 KB
test_28E.txt AC 141 ms 7580 KB
test_29.txt AC 320 ms 7652 KB
test_30.txt AC 366 ms 7588 KB
test_31E.txt AC 48 ms 7592 KB
test_32E.txt AC 349 ms 7592 KB
test_33.txt AC 35 ms 7660 KB
test_34.txt AC 36 ms 7584 KB
test_35.txt AC 33 ms 7580 KB
test_36E.txt AC 33 ms 7596 KB
test_37E.txt AC 34 ms 7588 KB
test_38E.txt AC 33 ms 7580 KB
test_39E.txt AC 34 ms 7600 KB
test_40.txt AC 36 ms 7584 KB
test_41.txt AC 33 ms 7592 KB
test_42.txt AC 35 ms 7596 KB
test_43.txt AC 33 ms 7708 KB
test_44.txt AC 37 ms 7652 KB
test_45E.txt AC 34 ms 7648 KB
test_46.txt AC 34 ms 7592 KB
test_47E.txt AC 33 ms 7588 KB
test_48.txt AC 33 ms 7584 KB