제출 #467683

#제출 시각아이디문제언어결과실행 시간메모리
467683SirCovidThe19thGap (APIO16_gap)C++17
30 / 100
63 ms1948 KiB
#include <bits/stdc++.h> #include "gap.h" using namespace std; #define ll long long ll findGap(int t, int n){ ll mn = 1, mx = 1e18, A[n], lim, lb, ans = 0; if (t == 1){ for (ll i = 0, j = n - 1; i <= j; i++, j--){ MinMax(mn, mx, &mn, &mx); A[i] = mn; A[j] = mx; mn++; mx--; } for (ll i = 1; i < n; i++) ans = max(ans, A[i] - A[i - 1]); } else{ MinMax(mn, mx, &mn, &mx); lb = ceil((mx - mn) / ((ll)n - 1.0)); lim = mx; for (ll l = mn, r = mn + lb - 1, prvMx = 1e18; l <= lim; l += lb, r += lb){ MinMax(l, r, &mn, &mx); ans = max(ans, mn - prvMx); if (~mx) prvMx = mx; } } return ans; }
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