제출 #813648

#제출 시각아이디문제언어결과실행 시간메모리
813648maomao90Garden (JOI23_garden)C++17
30 / 100
3076 ms8376 KiB
// Hallelujah, praise the one who set me free // Hallelujah, death has lost its grip on me // You have broken every chain, There's salvation in your name // Jesus Christ, my living hope #include <bits/stdc++.h> using namespace std; #define REP(i, s, e) for (int i = (s); i < (e); i++) #define RREP(i, s, e) for (int i = (s); i >= (e); i--) template <class T> inline bool mnto(T& a, T b) {return a > b ? a = b, 1 : 0;} template <class T> inline bool mxto(T& a, T b) {return a < b ? a = b, 1: 0;} typedef unsigned long long ull; typedef long long ll; typedef long double ld; #define FI first #define SE second typedef pair<int, int> ii; typedef pair<ll, ll> pll; typedef tuple<int, int, int> iii; #define ALL(_a) _a.begin(), _a.end() #define SZ(_a) (int) _a.size() #define pb push_back typedef vector<int> vi; typedef vector<ll> vll; typedef vector<ii> vii; typedef vector<iii> viii; #ifndef DEBUG #define cerr if (0) cerr #endif const int INF = 1000000005; const ll LINF = 1000000000000000005ll; const int MAXN = 500005; const int MAXD = 5005; int n, m, d; int p[MAXN], q[MAXN]; ii rs[MAXN]; int occ[MAXD * 2 + 5]; set<int> st; multiset<int> gap; int ans; int calcgap(int r, int l) { if (r > l) { return r - l; } return r - l + d; } void insert(int v) { if (occ[v]++ > 0) { return; } auto ptr = st.insert(v).FI; if (SZ(st) == 1) { gap.insert(0); return; } auto prv = prev(st.end()); if (ptr != st.begin()) { prv = prev(ptr); } auto nxt = next(ptr); if (nxt == st.end()) { nxt = st.begin(); } if (prv == nxt) { gap.erase(gap.find(0)); } else { gap.erase(gap.find(calcgap(*prv, *nxt))); } gap.insert(calcgap(*prv, *ptr)); gap.insert(calcgap(*ptr, *nxt)); } void remove(int v) { if (--occ[v] > 0) { return; } auto ptr = st.find(v); auto prv = prev(st.end()); if (ptr != st.begin()) { prv = prev(ptr); } auto nxt = next(ptr); if (nxt == st.end()) { nxt = st.begin(); } gap.erase(gap.find(calcgap(*prv, *ptr))); gap.erase(gap.find(calcgap(*ptr, *nxt))); if (prv == nxt) { gap.insert(0); } else { gap.insert(calcgap(*prv, *nxt)); } st.erase(ptr); } int main() { #ifndef DEBUG ios::sync_with_stdio(0), cin.tie(0); #endif cin >> n >> m >> d; REP (i, 0, n) { cin >> p[i] >> q[i]; } REP (i, 0, m) { cin >> rs[i].FI >> rs[i].SE; } sort(rs, rs + m); REP (i, m, 2 * m) { rs[i] = rs[i - m]; rs[i].FI += d; } sort(p, p + n); REP (i, n, 2 * n) { p[i] = p[i - n] + d; } REP (i, 0, n) { insert(q[i]); } int rptr = 0, pptr = 0; ans = INF; REP (i, 0, d) { while (rs[rptr].FI < i) { rptr++; } while (p[pptr] < i) { pptr++; } int ptr = rptr + m - 1; RREP (j, i + d - 1, max(i, p[pptr + n - 1])) { while (ptr >= rptr && rs[ptr].FI > j) { insert(rs[ptr--].SE); } mnto(ans, (j - i + 1) * (*gap.begin() + 1)); } while (ptr < rptr + m - 1) { remove(rs[++ptr].SE); } } cout << ans << '\n'; return 0; }
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