제출 #1060426

#제출 시각아이디문제언어결과실행 시간메모리
1060426nvujica죄수들의 도전 (IOI22_prison)C++17
72 / 100
18 ms1156 KiB
#include <bits/stdc++.h> #include "prison.h" using namespace std; const int x = 23; vector<vector<int> > devise_strategy(int n) { vector <vector<int> > s(x + 1); for(int i = 0; i <= x; i++){ s[i].resize(n + 1, 0); } for(int i = 0; i <= x; i++){ int b = (i + 2) / 3; int r = (i + 2) % 3; s[i][0] = b % 2; for(int val = 1; val <= n; val++){ vector <int> mask; int val2 = val; while(val2){ mask.push_back(val2 % 3); val2 /= 3; } while(mask.size() < (x + 1) / 3) mask.push_back(0); reverse(mask.begin(), mask.end()); if(b == 8){ if(r == 1 && mask[7] != 2) s[i][val] = -1; else s[i][val] = -2; continue; } if(b == 0 || mask[b - 1] == r){ if(b == 7) s[i][val] = b * 3 + 1 + (mask[b] >= 1); else s[i][val] = b * 3 + 1 + mask[b]; } else if(mask[b - 1] < r){ s[i][val] = -1 - s[i][0]; } else if(mask[b - 1] > r) s[i][val] = -2 + s[i][0]; } } // for(int i = 0; i <= x; i++){ // for(int j = 0; j <= n; j++){ // cout << s[i][j] << ' '; // } // cout << endl; // } return s; }
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