Submission #378457

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
378457	2021-03-16 21:29:03	eulerdesoja	Building 4 (JOI20_building4)	C++14	11 / 100	125 ms	32384 KiB

building4

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#include<bits/stdc++.h>
#include<fstream>
using namespace std;
#define ll long long
#define pb push_back
#define sz(x) int(x.size())
typedef pair<int,int>ii;
typedef vector<int> vi;
const int mxn=2e3+5;
int n,a[2][2*mxn];
int dp[mxn][mxn][2];
vector<char>ans(2*n+1);
int solve(int i,int j,int k){
  if(dp[i][j][k]!=-1)return dp[i][j][k];
  if(i>n || j>n)return 0;
  if(i+j==2*n){
    if(i==n && j==n){
      if(ans[i+j]=='$')ans[i+j]=(k==0?'A':'B');
      return 1;
    }
    return 0;
  }
  int id=i+j;
  int  ok=0;
  if(a[0][id+1]>=a[k][id] && i+1<=n)ok|=solve(i+1,j,0);
 
 
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• Subtask 1: 11 / 11
• Subtask 2: 0 / 89