Submission #1753091
Source Code Expand
#include <cstdio>
#include <algorithm>
#define repu(i,x,y) for (int i=x; i<=y; ++i)
using namespace std;
const int p=1000000007;
int n,m,k,f[4010][2010],ans;
int main()
{
scanf("%d%d%d",&n,&m,&k);
f[1][1]=1,f[1][k]=p-1;
repu(i,1,(n+m-1)/(k-1))
repu(j,1,m)
if ((f[i][j]+=f[i][j-1])%=p)
{
(f[i+1][j]+=f[i][j])%=p;
(f[i+1][min(m+1,j+k)]+=p-f[i][j])%=p;
if ((m-j)%(k-1)==0 && (k-1)*i-j<n && (n-1-(k-1)*i+j)%(k-1)==0)
(ans+=f[i][j])%=p;
}
printf("%d\n",ans);
return 0;
}
Submission Info
Submission Time
2017-11-08 17:04:38+0900
Task
E - Eternal Average
User
dwjshift
Language
C++14 (GCC 5.4.1)
Score
1600
Code Size
622 Byte
Status
AC
Exec Time
82 ms
Memory
31616 KB
Compile Error
./Main.cpp: In function ‘int main()’:
./Main.cpp:11:29: 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
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
1 ms
256 KB
02.txt
AC
82 ms
31616 KB
03.txt
AC
1 ms
128 KB
04.txt
AC
1 ms
128 KB
05.txt
AC
38 ms
16512 KB
06.txt
AC
12 ms
6272 KB
07.txt
AC
2 ms
3200 KB
08.txt
AC
1 ms
640 KB
09.txt
AC
3 ms
1152 KB
10.txt
AC
2 ms
896 KB
11.txt
AC
1 ms
256 KB
12.txt
AC
1 ms
128 KB
13.txt
AC
1 ms
512 KB
14.txt
AC
1 ms
256 KB
15.txt
AC
1 ms
512 KB
16.txt
AC
1 ms
128 KB
17.txt
AC
1 ms
256 KB
18.txt
AC
2 ms
768 KB
19.txt
AC
7 ms
17664 KB
20.txt
AC
10 ms
6272 KB
21.txt
AC
1 ms
128 KB
22.txt
AC
10 ms
4224 KB
23.txt
AC
2 ms
768 KB
24.txt
AC
2 ms
640 KB
s1.txt
AC
1 ms
128 KB
s2.txt
AC
1 ms
128 KB
s3.txt
AC
1 ms
256 KB