Submission #2182507


Source Code Expand

#include<cstdio>
#include<cstring>

const int mod=1000000007;

int n,f[4001][4001],m,k,l,ans,x;

int main()
{
	scanf("%d%d%d",&n,&m,&k);
	l=(n+m-1)/(k-1);
	memset(f,0,sizeof(f)); f[0][0]=1;
	for (int i=1; i<=l; i++)
		for (int j=0; j<k; j++)
			for (int o=0; o<=m; o++)
				f[i][j+o]=(f[i][j+o]+f[i-1][o])%mod;
	ans=0;
	for (int i=m; i>0; i-=(k-1))
	{
		x=(m-i)/(k-1);
		ans=(ans+f[l-x][i])%mod;
	}
	printf("%d\n",ans);
	return 0;
}

Submission Info

Submission Time
Task E - Eternal Average
User panole
Language C++14 (GCC 5.4.1)
Score 1600
Code Size 456 Byte
Status AC
Exec Time 53 ms
Memory 62720 KB

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:10:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d%d",&n,&m,&k);
                          ^

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 16 ms 62720 KB
02.txt AC 53 ms 62720 KB
03.txt AC 16 ms 62720 KB
04.txt AC 16 ms 62720 KB
05.txt AC 42 ms 62720 KB
06.txt AC 27 ms 62720 KB
07.txt AC 16 ms 62720 KB
08.txt AC 17 ms 62720 KB
09.txt AC 34 ms 62720 KB
10.txt AC 33 ms 62720 KB
11.txt AC 33 ms 62720 KB
12.txt AC 33 ms 62720 KB
13.txt AC 32 ms 62720 KB
14.txt AC 24 ms 62720 KB
15.txt AC 32 ms 62720 KB
16.txt AC 19 ms 62720 KB
17.txt AC 28 ms 62720 KB
18.txt AC 27 ms 62720 KB
19.txt AC 18 ms 62720 KB
20.txt AC 31 ms 62720 KB
21.txt AC 16 ms 62720 KB
22.txt AC 35 ms 62720 KB
23.txt AC 30 ms 62720 KB
24.txt AC 29 ms 62720 KB
s1.txt AC 16 ms 62720 KB
s2.txt AC 16 ms 62720 KB
s3.txt AC 16 ms 62720 KB