AtCoder Beginner Contest 034

Submission #1435215

Source codeソースコード

# include <iostream>
# include <algorithm>
# include <vector>
# include <string>
# include <set>
# include <map>
# include <cmath>
# include <iomanip>
# include <functional>
# include <utility>
# include <stack>
# include <queue>
# include <list>
# include <ctime>
constexpr int MOD = 1000000007;
constexpr int INF = 2000000000;
using namespace std;
//a^b%p
long long calc(long long a, long long b, long long p) {
	if (b == 0) return 1;
	if (b % 2 == 0) {
		long long d = calc(a, b / 2, p);
		return (d * d) % p;
	}
	else {
		return (a * calc(a, b - 1, p)) % p;
	}
}

int main() {
	int w, h;
	long long ans = 1;
	cin >> w >> h;
	for (int i = w; i <= h + w - 2; i++) { 
		ans = ans * i % MOD;
	}
	for (int i = 1; i <= h - 1; i++) {
		ans = ans * calc(i, MOD - 2, MOD) % MOD;
	}

	cout << ans << endl;

	return 0;
}

Submission

Task問題 C - 経路
User nameユーザ名 tancahn2380
Created time投稿日時
Language言語 C++14 (GCC 5.4.1)
Status状態 AC
Score得点 101
Source lengthソースコード長 856 Byte
File nameファイル名
Exec time実行時間 74 ms
Memory usageメモリ使用量 256 KB

Test case

Set

Set name Score得点 / Max score Cases
Sample - s0.txt,s1.txt
Dataset1 50 / 50 000.txt,001.txt,002.txt,003.txt,004.txt,005.txt,006.txt,007.txt,008.txt,009.txt,010.txt,s0.txt
Dataset2 50 / 50 000.txt,001.txt,002.txt,003.txt,004.txt,005.txt,006.txt,007.txt,008.txt,009.txt,010.txt,011.txt,012.txt,013.txt,014.txt,015.txt,016.txt,017.txt,018.txt,019.txt,020.txt,021.txt,s0.txt,s1.txt
All 1 / 1 000.txt,001.txt,002.txt,003.txt,004.txt,005.txt,006.txt,007.txt,008.txt,009.txt,010.txt,011.txt,012.txt,013.txt,014.txt,015.txt,016.txt,017.txt,018.txt,019.txt,020.txt,021.txt,022.txt,023.txt,024.txt,025.txt,026.txt,027.txt,028.txt,029.txt,030.txt,031.txt,032.txt,s0.txt,s1.txt

Test case

Case name Status状態 Exec time実行時間 Memory usageメモリ使用量
000.txt AC 1 ms 256 KB
001.txt AC 1 ms 256 KB
002.txt AC 1 ms 256 KB
003.txt AC 1 ms 256 KB
004.txt AC 11 ms 256 KB
005.txt AC 1 ms 256 KB
006.txt AC 1 ms 256 KB
007.txt AC 1 ms 256 KB
008.txt AC 1 ms 256 KB
009.txt AC 1 ms 256 KB
010.txt AC 1 ms 256 KB
011.txt AC 2 ms 256 KB
012.txt AC 1 ms 256 KB
013.txt AC 2 ms 256 KB
014.txt AC 2 ms 256 KB
015.txt AC 2 ms 256 KB
016.txt AC 2 ms 256 KB
017.txt AC 2 ms 256 KB
018.txt AC 2 ms 256 KB
019.txt AC 1 ms 256 KB
020.txt AC 2 ms 256 KB
021.txt AC 2 ms 256 KB
022.txt AC 68 ms 256 KB
023.txt AC 44 ms 256 KB
024.txt AC 36 ms 256 KB
025.txt AC 29 ms 256 KB
026.txt AC 22 ms 256 KB
027.txt AC 36 ms 256 KB
028.txt AC 66 ms 256 KB
029.txt AC 20 ms 256 KB
030.txt AC 71 ms 256 KB
031.txt AC 27 ms 256 KB
032.txt AC 74 ms 256 KB
s0.txt AC 1 ms 256 KB
s1.txt AC 1 ms 256 KB