제출 #1053694

#제출 시각아이디문제언어결과실행 시간메모리
1053694EntityPlantt철로 (IOI14_rail)C++17
30 / 100
35 ms3412 KiB
#include "rail.h" // #include <iostream> const int N = 5005; int dp[N][N]; int dist(int i, int j) { if (i == j) return 0; if (i > j) { int t = i; i = j; j = t; } if (!dp[i][j]) { dp[i][j] = getDistance(i, j); // std::cerr << "dp[" << i << "][" << j << "] = " << dp[i][j] << std::endl; } return dp[i][j]; } void findLocation(int n, int first, int location[], int stype[]) { location[0] = first; stype[0] = 1; int cr = 1; for (int i = 2; i < n; i++) if (dist(0, cr) > dist(0, i)) cr = i; location[cr] = dist(0, cr) + first; stype[cr] = 2; for (int i = 1; i < n; i++) { if (i == cr) continue; if (dist(0, i) > dist(cr, i)) { stype[i] = 1; location[i] = first - dist(cr, i) + dist(cr, 0); } else { stype[i] = 2; location[i] = first + dist(0, i); } } }
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