제출 #1029307

#제출 시각아이디문제언어결과실행 시간메모리
1029307Andrey죄수들의 도전 (IOI22_prison)C++17
0 / 100
4 ms604 KiB
#include "prison.h" #include<bits/stdc++.h> using namespace std; bool yeah = true; int calc(int a, int x) { a--; int r = 4999; yeah = true; for(int i = 0; i < x; i++) { if(a == 0) { yeah = false; return -1; } else if(a == r) { yeah = false; return 3; } r = ((r-1)/3); a--; a%=r+1; } r = ((r-1)/3); if(a == 0) { yeah = false; } else if(a == r) { yeah = false; } return a/(r+1); } vector<vector<int>> devise_strategy(int n) { vector<vector<int>> ans(24,vector<int> (n+1)); ans[0][0] = 0; for(int i = 1; i <= n; i++) { if(i == 1) { ans[0][i] = -1; } else if(i == n) { ans[0][i] = -2; } else { ans[0][i] = calc(i,0)+1; } } for(int i = 1; i <= 20; i++) { int c = (i-1)/3+1; ans[i][0] = c%2; for(int j = 1; j <= n; j++) { if(calc(j,c-1) == (i-1)%3 && yeah) { ans[i][j] = c*3+calc(j,c)+1; } else { if(!yeah) { if(calc(j,c) == -1) { if(c%2) { ans[i][j] = -2; } else { ans[i][j] = -1; } } else { if(c%2) { ans[i][j] = -1; } else { ans[i][j] = -2; } } continue; } if(calc(j,c-1) < (i-1)%3) { if(c%2) { ans[i][j] = -2; } else { ans[i][j] = -1; } } else { if(c%2) { ans[i][j] = -1; } else { ans[i][j] = -2; } } } } } return ans; }
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