# | 제출 시각 | 아이디 | 문제 | 언어 | 결과 | 실행 시간 | 메모리 |
---|---|---|---|---|---|---|---|
238557 | 2020-06-11T19:18:34 Z | vankata | Trener (COCI20_trener) | C++14 | 24 ms | 896 KB |
#include<bits/stdc++.h> using namespace std; const int MAXN = (int)(1<<11); const int MOD = (int)(1e9+7); int n,k; vector<string>v[2]; long long dp[MAXN][MAXN]; bool cmp(string a,string b) { for(size_t i=0;i<a.size();i++) { if(a[i]!=b[i])return false; }return true; } void comp(int t) { int i,j,lm=0,ll=0,l=0; string s=""; for(i=0;i<k;i++) { for(j=0;j<k;j++) { lm=ll=0; for(l=0;l<v[(t%2)^1][j].size();l++) { if(v[t%2][i][l]!=v[(t%2)^1][j][l])lm=-1; if(v[t%2][i][l+1]!=v[(t%2)^1][j][l])ll=-1; } if(!lm||!ll) { dp[t][i]+=dp[t-1][j]; } } } } void read() { int i,j,t=1; string s; cin>>n>>k; for(i=0;i<k;i++) { dp[0][i]=1; cin>>s; v[0].push_back(s); } for(i=1;i<n;i++) { v[i%2].clear(); for(j=0;j<k;j++) { cin>>s; v[i%2].push_back(s); } comp(i); } long long ans = 0; for(i=0;i<k;i++) { ans+=dp[n-1][i]; } ans%=MOD;cout<<ans<<'\n'; } int main() { ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0); read(); return 0; }
Compilation message
# | 결과 | 실행 시간 | 메모리 | Grader output |
---|---|---|---|---|
1 | Correct | 5 ms | 384 KB | Output is correct |
2 | Correct | 5 ms | 384 KB | Output is correct |
3 | Correct | 5 ms | 384 KB | Output is correct |
4 | Correct | 4 ms | 384 KB | Output is correct |
# | 결과 | 실행 시간 | 메모리 | Grader output |
---|---|---|---|---|
1 | Correct | 22 ms | 768 KB | Output is correct |
2 | Correct | 24 ms | 896 KB | Output is correct |
3 | Correct | 22 ms | 768 KB | Output is correct |
4 | Incorrect | 22 ms | 768 KB | Output isn't correct |
5 | Halted | 0 ms | 0 KB | - |
# | 결과 | 실행 시간 | 메모리 | Grader output |
---|---|---|---|---|
1 | Correct | 5 ms | 384 KB | Output is correct |
2 | Correct | 5 ms | 384 KB | Output is correct |
3 | Correct | 5 ms | 384 KB | Output is correct |
4 | Correct | 4 ms | 384 KB | Output is correct |
5 | Correct | 22 ms | 768 KB | Output is correct |
6 | Correct | 24 ms | 896 KB | Output is correct |
7 | Correct | 22 ms | 768 KB | Output is correct |
8 | Incorrect | 22 ms | 768 KB | Output isn't correct |
9 | Halted | 0 ms | 0 KB | - |