제출 #626087

#제출 시각아이디문제언어결과실행 시간메모리
626087peti1234죄수들의 도전 (IOI22_prison)C++17
0 / 100
5 ms596 KiB
#include <bits/stdc++.h> using namespace std; vector<vector<int> > devise_strategy(int n){ vector<vector<int>> ans(21), ert(9); vector<int> szint(21, 0); for (int i=0; i<=20; i++) { ans[i].resize(n+1); if (i<=8) ert[i].resize(n+1); } for (int i=0; i<=19; i++) { szint[i]=(i+2)/3; } szint[20]=8; for (int i=0; i<=20; i++) { ans[i][0]=(szint[i]%2); } for (int j=1; j<=n; j++) { int kis=1, nagy=5102; for (int i=0; i<=8; i++) { int res=0; if (j==kis) res=-1; if (j==nagy) res=-2; if (kis<j && j<nagy) { kis++, nagy--; if (i<6) { int k1=kis+(nagy+1-kis)/3, k2=2*k1-kis; if (j<k1) res=1, nagy=k1-1; else if (j<k2) res=2, kis=k1, nagy=k2-1; else res=3, kis=k2; } if (i==6) res=19; if (i==7) res=20; if (i==8) res=0; } ert[i][j]=res; } } for (int i=0; i<=20; i++) { for (int j=1; j<=n; j++) { int ut=(1<=i && i<=18 ? (i-1)%3+1 : 0), b=ert[szint[i]][j]; if (b==-1 || b==-2 || (ut && b!=ut)) { ans[i][j]=(b==-1 || b<ut ? -1 : -2); if (szint[i]%2) ans[i][j]=-3-ans[i][j]; } else { if (i<18) { int s=(3-i%3)%3; ans[i][j]=(i<18 ? i+s+b : b); } } } } return ans; } /*int main() { ios_base::sync_with_stdio(false); vector<vector<int> > sz=devise_strategy(20); int cnt=0; for (auto x:sz) { cout << "sor " << cnt << ": "; if (cnt<10) cout << " "; cnt++; for (auto y:x) { if (0<=y && y<10) cout << " "; cout << y << " "; } cout << "\n"; } return 0; }*/
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