제출 #485566

#제출 시각아이디문제언어결과실행 시간메모리
485566dxz05Finding Routers (IOI20_routers)C++14
70.13 / 100
2 ms296 KiB
#include "routers.h" #include <bits/stdc++.h> using namespace std; vector<int> find_routers(int len, int n, int q){ vector<int> p(n); for (int i = 1; i < n; i++){ int l = p[i - 1] + 1, r = len - 1; while (l <= r) { int m = (l + r) >> 1; if (use_detector(m) == i - 1){ l = m + 1; } else r = m - 1; } l--; p[i] = 2 * l - p[i - 1]; } return p; }
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