Submission #1934388
Source Code Expand
#include<bits/stdc++.h> #define N 2005 using namespace std; const int mod=1e9+7; int n,m,k; int dp[2][N]; long long ans; int main(){ scanf("%d%d%d",&n,&m,&k);n--,k--; int now=0; dp[now][0]=1; for(int tot=0;tot<=n+m;tot+=k){ memset(dp[now^1],0,sizeof(dp[0])); for(int j=max(0,tot-n);j<=min(m,tot);j++){ if(m%k==j%k) ans+=dp[now][j]; for(int si=0;si<=k;si++) if(j+si<=m && tot-j+k-si<=n) (dp[now^1][j+si]+=dp[now][j])%=mod; if(j+0<=m && tot-j+k-0<=n && m%k==j%k) ans-=dp[now][j]; } now^=1; } cout<<(ans-(m%k==0? 1:0) )%mod<<endl; return 0; }
Submission Info
Submission Time | |
---|---|
Task | E - Eternal Average |
User | Wuvin |
Language | C++14 (GCC 5.4.1) |
Score | 1600 |
Code Size | 712 Byte |
Status | AC |
Exec Time | 46 ms |
Memory | 256 KB |
Compile Error
./Main.cpp: In function ‘int main()’: ./Main.cpp:9:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d",&n,&m,&k);n--,k--; ^
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 1600 / 1600 | ||||
Status |
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Set Name | Test Cases |
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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 | 46 ms | 256 KB |
03.txt | AC | 1 ms | 256 KB |
04.txt | AC | 1 ms | 256 KB |
05.txt | AC | 24 ms | 256 KB |
06.txt | AC | 1 ms | 256 KB |
07.txt | AC | 1 ms | 256 KB |
08.txt | AC | 1 ms | 256 KB |
09.txt | AC | 11 ms | 256 KB |
10.txt | AC | 11 ms | 256 KB |
11.txt | AC | 6 ms | 256 KB |
12.txt | AC | 4 ms | 256 KB |
13.txt | AC | 9 ms | 256 KB |
14.txt | AC | 5 ms | 256 KB |
15.txt | AC | 9 ms | 256 KB |
16.txt | AC | 1 ms | 256 KB |
17.txt | AC | 6 ms | 256 KB |
18.txt | AC | 3 ms | 256 KB |
19.txt | AC | 4 ms | 256 KB |
20.txt | AC | 12 ms | 256 KB |
21.txt | AC | 1 ms | 256 KB |
22.txt | AC | 13 ms | 256 KB |
23.txt | AC | 9 ms | 256 KB |
24.txt | AC | 8 ms | 256 KB |
s1.txt | AC | 1 ms | 256 KB |
s2.txt | AC | 1 ms | 256 KB |
s3.txt | AC | 1 ms | 256 KB |