Submission #1075028


Source Code Expand

#include <bits/stdc++.h>
#define MOD 1000000007
using namespace std;
typedef long long LL;

int main(){
	int n, m, k;
	cin >> n >> m >> k;
	int c = (n+m-1)/(k-1);
	LL dp[c+1][m+1];
	for(int i = 0; i <= c; i++){
		for(int j = 0; j <= m; j++){
			dp[i][j] = 0;
		}
	}
	dp[0][0] = 1;
	for(int i = 1; i <= c; i++){
		for(int j = 0; j <= m; j++){
			for(int l = 0; l < k && j+l <= m; l++){
				dp[i][j+l] = (dp[i][j+l] + dp[i-1][j]) % MOD;
			}
		}
	}
	LL ans = 0;
	while(m > 0){
		int cc = (n+m-1)/(k-1);
		ans += dp[cc][m];
		ans %= MOD;
		m -= (k-1);
	}
	cout << ans << endl;
}

Submission Info

Submission Time
Task E - Eternal Average
User ksun48
Language C++14 (GCC 5.4.1)
Score 1600
Code Size 608 Byte
Status AC
Exec Time 109 ms
Memory 62720 KB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 1600 / 1600
Status
AC × 3
AC × 27
Set Name Test Cases
Sample s1.txt, s2.txt, s3.txt
All 01.txt, 02.txt, 03.txt, 04.txt, 05.txt, 06.txt, 07.txt, 08.txt, 09.txt, 10.txt, 11.txt, 12.txt, 13.txt, 14.txt, 15.txt, 16.txt, 17.txt, 18.txt, 19.txt, 20.txt, 21.txt, 22.txt, 23.txt, 24.txt, s1.txt, s2.txt, s3.txt
Case Name Status Exec Time Memory
01.txt AC 3 ms 256 KB
02.txt AC 109 ms 62720 KB
03.txt AC 3 ms 256 KB
04.txt AC 3 ms 256 KB
05.txt AC 66 ms 31488 KB
06.txt AC 27 ms 10624 KB
07.txt AC 3 ms 256 KB
08.txt AC 4 ms 640 KB
09.txt AC 23 ms 2304 KB
10.txt AC 23 ms 1664 KB
11.txt AC 14 ms 256 KB
12.txt AC 12 ms 256 KB
13.txt AC 20 ms 768 KB
14.txt AC 10 ms 384 KB
15.txt AC 19 ms 896 KB
16.txt AC 3 ms 256 KB
17.txt AC 12 ms 256 KB
18.txt AC 15 ms 1536 KB
19.txt AC 6 ms 1920 KB
20.txt AC 26 ms 8064 KB
21.txt AC 3 ms 256 KB
22.txt AC 31 ms 8064 KB
23.txt AC 18 ms 1280 KB
24.txt AC 17 ms 1024 KB
s1.txt AC 3 ms 256 KB
s2.txt AC 3 ms 256 KB
s3.txt AC 3 ms 256 KB