Submission #122326
Source Code Expand
#include <cstdio> #include <iostream> #include <sstream> #include <fstream> #include <iomanip> #include <algorithm> #include <cmath> #include <string> #include <vector> #include <list> #include <queue> #include <stack> #include <set> #include <map> #include <bitset> #include <numeric> #include <climits> #include <cfloat> #include <functional> using namespace std; class Mod { static const int MOD = 1000000007; long long a; public: Mod(){ a = 0; } Mod(long long x){ a = (x % MOD + MOD) % MOD; } const Mod operator+(const Mod& x) const{ return Mod(a + x.a); } const Mod operator-(const Mod& x) const{ return Mod(a - x.a); } const Mod operator*(const Mod& x) const{ return Mod(a * x.a); } const Mod operator/(const Mod& x) const{ // フェルマーの小定理、x.aとMODが互いに素な場合のみ有効 int b = MOD - 2; long long c = x.a; long long ret = 1; while(b > 0){ if(b & 1){ ret *= c; ret %= MOD; } c *= c; c %= MOD; b >>= 1; } return Mod(a * ret); } long long getValue(){ return a; } }; Mod combination(int n, int r) { if(n < r) return 0; if(n-r < r) r = n-r; Mod ret = 1; for(int i=0; i<r; i++){ ret = ret * (n--); ret = ret / (i+1); } return ret; } int main() { int h, w, hr, wr, d, l; cin >> h >> w >> hr >> wr >> d >> l; Mod ret = 0; for(int i=0; i<4; ++i){ for(int j=0; j<4; ++j){ bitset<2> bs1(i), bs2(j); int y = hr - bs1.count(); int x = wr - bs2.count(); if(y <= 0 || x <= 0) continue; if((bs1.count() + bs2.count()) % 2 == 0) ret = ret + combination(y * x, d + l); else ret = ret - combination(y * x, d + l); } } ret = ret * (h - hr + 1) * (w - wr + 1); ret = ret * combination(d + l, d); cout << ret.getValue() << endl; return 0; }
Submission Info
Submission Time | |
---|---|
Task | D - AtCoder社の冬 |
User | mamekin |
Language | C++ (G++ 4.6.4) |
Score | 101 |
Code Size | 2245 Byte |
Status | AC |
Exec Time | 23 ms |
Memory | 928 KB |
Judge Result
Set Name | sub | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 100 / 100 | 1 / 1 | ||||
Status |
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Set Name | Test Cases |
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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 | 20 ms | 676 KB |
00_sample_02E.txt | AC | 22 ms | 848 KB |
00_sample_03E.txt | AC | 20 ms | 792 KB |
00_sample_04.txt | AC | 23 ms | 924 KB |
test_01.txt | AC | 21 ms | 680 KB |
test_02.txt | AC | 21 ms | 928 KB |
test_03E.txt | AC | 21 ms | 800 KB |
test_04E.txt | AC | 20 ms | 800 KB |
test_05.txt | AC | 21 ms | 804 KB |
test_06.txt | AC | 22 ms | 680 KB |
test_07E.txt | AC | 21 ms | 804 KB |
test_08E.txt | AC | 21 ms | 680 KB |
test_09.txt | AC | 22 ms | 800 KB |
test_10.txt | AC | 22 ms | 676 KB |
test_11E.txt | AC | 21 ms | 800 KB |
test_12E.txt | AC | 20 ms | 748 KB |
test_13.txt | AC | 20 ms | 800 KB |
test_14.txt | AC | 21 ms | 928 KB |
test_15E.txt | AC | 20 ms | 788 KB |
test_16E.txt | AC | 21 ms | 804 KB |
test_17.txt | AC | 21 ms | 804 KB |
test_18.txt | AC | 21 ms | 804 KB |
test_19E.txt | AC | 21 ms | 808 KB |
test_20E.txt | AC | 20 ms | 804 KB |
test_21.txt | AC | 20 ms | 800 KB |
test_22.txt | AC | 23 ms | 804 KB |
test_23E.txt | AC | 22 ms | 808 KB |
test_24E.txt | AC | 23 ms | 796 KB |
test_25.txt | AC | 22 ms | 804 KB |
test_26.txt | AC | 21 ms | 676 KB |
test_27E.txt | AC | 21 ms | 800 KB |
test_28E.txt | AC | 21 ms | 796 KB |
test_29.txt | AC | 22 ms | 716 KB |
test_30.txt | AC | 22 ms | 760 KB |
test_31E.txt | AC | 21 ms | 804 KB |
test_32E.txt | AC | 22 ms | 808 KB |
test_33.txt | AC | 20 ms | 676 KB |
test_34.txt | AC | 21 ms | 676 KB |
test_35.txt | AC | 21 ms | 680 KB |
test_36E.txt | AC | 21 ms | 804 KB |
test_37E.txt | AC | 20 ms | 676 KB |
test_38E.txt | AC | 20 ms | 800 KB |
test_39E.txt | AC | 22 ms | 732 KB |
test_40.txt | AC | 21 ms | 804 KB |
test_41.txt | AC | 22 ms | 804 KB |
test_42.txt | AC | 20 ms | 752 KB |
test_43.txt | AC | 22 ms | 804 KB |
test_44.txt | AC | 21 ms | 804 KB |
test_45E.txt | AC | 21 ms | 804 KB |
test_46.txt | AC | 21 ms | 804 KB |
test_47E.txt | AC | 22 ms | 804 KB |
test_48.txt | AC | 21 ms | 732 KB |