제출 #956726

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
956726		DeltaStruct	Miners (IOI07_miners)	C++17	53 / 100	1601 ms	604 KiB

miners

#include <bits/stdc++.h>
using namespace std;
 
int main(){
  int n,id=numeric_limits<int>::lowest(); cin >> n; string s; cin >> s; vector dp(4,vector(4,vector(4,vector<int>(4,id))));
  string u = "MFB"; dp[3][3][3][3] = 0;
  for (char a:s){
    vector res(5,vector(5,vector(5,vector<int>(5,id)))); int t = find(u.begin(),u.end(),a)-u.begin();
    for (int i(0);i < 4;++i) for (int k(0);k < 4;++k) for (int j(0);j < 4;++j) for (int l(0);l < 4;++l){
      if (dp[i][k][j][l]!=3){
        {
          set<int> s = {i,k,t}; if (s.find(3)!=s.end()) s.erase(3);
          res[k][t][j][l] = max(res[k][t][j][l],dp[i][k][j][l]+(int)s.size());
        }
        {
          set<int> s = {j,l,t}; if (s.find(3)!=s.end()) s.erase(3);
          res[i][k][l][t] = max(res[i][k][l][t],dp[i][k][j][l]+(int)s.size());
        }
      }
    }
    swap(dp,res);
  }
  int r = 0;
  for (int i(0);i < 4;++i) for (int k(0);k < 4;++k) for (int j(0);j < 4;++j) for (int l(0);l < 4;++l){
    r = max(r,dp[i][k][j][l]);
  }
  cout << r << endl;
}

• Subtask 1: 9 / 9
• Subtask 2: 9 / 9
• Subtask 3: 9 / 9
• Subtask 4: 9 / 9
• Subtask 5: 9 / 9
• Subtask 6: 0 / 7
• Subtask 7: 0 / 8
• Subtask 8: 0 / 8
• Subtask 9: 0 / 8
• Subtask 10: 8 / 8
• Subtask 11: 0 / 8
• Subtask 12: 0 / 8