Submission #1845803
Source Code Expand
#include <bits/stdc++.h> #define ll long long const int N=6050,mo=1e9+7; using namespace std; inline int gi(){ char ch=getchar();int x=0,q=0; while(ch<'0' || ch>'9') ch=='-'?q=1:0,ch=getchar(); while(ch>='0' && ch<='9') x=x*10+ch-'0',ch=getchar(); return q?(-x):x; } ll f[N][N][2]; void dp(ll &x,ll y){ x+=y; if (x>=mo) x-=mo; return; } int main(){ int n=gi(),m=gi(); for (int i=0; i<=m; ++i) f[0][i][i==0]=1; for (int i=0; i<m; ++i) for (int j=0; j<=n; ++j) for (int k=0; k<=1; ++k) if (f[i][j][k]){ if (j) dp(f[i+1][j-1][k|(j==1)],f[i][j][k]); if (j) dp(f[i+1][j][k|(j==1)],f[i][j][k]); if (j<n) dp(f[i+1][j+1][k],f[i][j][k]); if (j<n) dp(f[i+1][j][k],f[i][j][k]); } ll ans=0; for (int i=0; i<=n; ++i) dp(ans,f[m][i][1]); cout<<ans; return 0; }
Submission Info
Submission Time | |
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Task | D - Piling Up |
User | Thefinal |
Language | C++14 (GCC 5.4.1) |
Score | 0 |
Code Size | 841 Byte |
Status | MLE |
Exec Time | 233 ms |
Memory | 284032 KB |
Judge Result
Set Name | Sample | All | ||||||||
---|---|---|---|---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 0 / 900 | ||||||||
Status |
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Set Name | Test Cases |
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Sample | sample_01.txt, sample_02.txt, sample_03.txt |
All | sample_01.txt, sample_02.txt, sample_03.txt, sample_01.txt, sample_02.txt, sample_03.txt, subtask_1_01.txt, subtask_1_02.txt, subtask_1_03.txt, subtask_1_04.txt, subtask_1_05.txt, subtask_1_06.txt, subtask_1_07.txt, subtask_1_08.txt, subtask_1_09.txt, subtask_1_10.txt, subtask_1_11.txt, subtask_1_12.txt, subtask_1_13.txt, subtask_1_14.txt, subtask_1_15.txt, subtask_1_16.txt, subtask_1_17.txt, subtask_1_18.txt, subtask_1_19.txt, subtask_1_20.txt, subtask_1_21.txt, subtask_1_22.txt, subtask_1_23.txt, subtask_1_24.txt, subtask_1_25.txt, subtask_1_26.txt, subtask_1_27.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
sample_01.txt | AC | 1 ms | 256 KB |
sample_02.txt | AC | 1 ms | 256 KB |
sample_03.txt | MLE | 132 ms | 283264 KB |
subtask_1_01.txt | AC | 23 ms | 53760 KB |
subtask_1_02.txt | AC | 35 ms | 111104 KB |
subtask_1_03.txt | MLE | 116 ms | 283264 KB |
subtask_1_04.txt | AC | 80 ms | 154368 KB |
subtask_1_05.txt | AC | 175 ms | 240768 KB |
subtask_1_06.txt | MLE | 116 ms | 283264 KB |
subtask_1_07.txt | MLE | 121 ms | 262784 KB |
subtask_1_08.txt | AC | 58 ms | 184832 KB |
subtask_1_09.txt | MLE | 187 ms | 283648 KB |
subtask_1_10.txt | MLE | 233 ms | 284032 KB |
subtask_1_11.txt | MLE | 111 ms | 258688 KB |
subtask_1_12.txt | AC | 70 ms | 162432 KB |
subtask_1_13.txt | MLE | 109 ms | 283264 KB |
subtask_1_14.txt | AC | 71 ms | 242176 KB |
subtask_1_15.txt | AC | 34 ms | 86656 KB |
subtask_1_16.txt | MLE | 128 ms | 283264 KB |
subtask_1_17.txt | AC | 49 ms | 135680 KB |
subtask_1_18.txt | AC | 50 ms | 117376 KB |
subtask_1_19.txt | MLE | 84 ms | 283136 KB |
subtask_1_20.txt | MLE | 132 ms | 283264 KB |
subtask_1_21.txt | AC | 23 ms | 115072 KB |
subtask_1_22.txt | MLE | 56 ms | 283008 KB |
subtask_1_23.txt | AC | 29 ms | 141696 KB |
subtask_1_24.txt | MLE | 56 ms | 283008 KB |
subtask_1_25.txt | AC | 2 ms | 2432 KB |
subtask_1_26.txt | MLE | 56 ms | 283008 KB |
subtask_1_27.txt | AC | 1 ms | 256 KB |