이 제출은 이전 버전의 oj.uz에서 채점하였습니다. 현재는 제출 당시와는 다른 서버에서 채점을 하기 때문에, 다시 제출하면 결과가 달라질 수도 있습니다.
//Sylwia Sapkowska
#include <bits/stdc++.h>
#pragma GCC optimize("O3", "unroll-loops")
using namespace std;
void __print(int x) {cerr << x;}
void __print(long long x) {cerr << x;}
void __print(long double x) {cerr << x;}
void __print(char x) {cerr << "'" << x << "'";}
void __print(const char *x) {cerr << '"' << x << '"';}
void __print(const string &x) {cerr << '"' << x << '"';}
void __print(bool x) {cerr << (x ? "true" : "false");}
template<typename T, typename V>
void __print(const pair<T, V> &x) {cerr << '{'; __print(x.first); cerr << ", "; __print(x.second); cerr << '}';}
template<typename T>
void __print(const T &x) {int f = 0; cerr << '{'; for (auto &i: x) cerr << (f++ ? ", " : ""), __print(i); cerr << "}";}
void _print() {cerr << "]\n";}
template <typename T, typename... V>
void _print(T t, V... v) {__print(t); if (sizeof...(v)) cerr << ", "; _print(v...);}
#ifdef LOCAL
#define debug(x...) cerr << "[" << #x << "] = ["; _print(x)
#else
#define debug(x...)
#endif
typedef pair<int, int> T;
const int oo = 1e9+7, K = 30;
void solve(){
int n, m, d; cin >> n >> m >> d;
vector<int>Y; //,X;
int mx = 2*d;
vector<vector<int>>pion(mx), poz(mx), p(mx);
for (int i = 0; i<n; i++){
int x, y; cin >> x >> y;
//4 punkty
p[x].emplace_back(y);
p[x+d].emplace_back(y);
}
vector<int>tab(d); //tylko punkty
int sum = 0;
vector<int>last(d, -1), cnt(d); //punkty z prostych poziomych
for (int i = 0; i<m; i++){
int a, b; cin >> a >> b;
// X.emplace_back(a);
Y.emplace_back(b);
cnt[b]++;
last[b] = max(last[b],a);
pion[a].emplace_back(i);
pion[a+d].emplace_back(i);
poz[b].emplace_back(i);
}
int ans = oo;
auto add = [&](int R){
for (auto y: p[R]) {
tab[y]++;
sum++;
}
for (auto i:pion[R]){
cnt[Y[i]]--;
if (!cnt[Y[i]]) last[Y[i]] = -1;
}
};
auto remove = [&](int L){
for (auto y: p[L]){
tab[y]--;
sum--;
}
for (auto i: pion[L]){
cnt[Y[i]]++;
last[Y[i]] = L+d;
}
};
vector<int>prev(mx, oo), nxt(mx, oo);
vector<T>ord;
vector<int>pocz(mx, -1), kon(mx, -1);
auto calc = [&](int L, int R, vector<int>a){
// if (L != 3) return;
int S = 0;
for (int i = 0; i < d; i++) {
a[i] += cnt[i];
S += a[i];
}
for (int i = 0; i<d; i++) a.emplace_back(a[i]);
prev.assign(mx, oo);
nxt.assign(mx, oo);
for (int i = 1; i<mx; i++){
prev[i] = (a[i-1] ? i-1 : prev[i-1]);
}
for (int i = mx-2; i>=0; i--){
nxt[i] = (a[i+1] ? i+1 : nxt[i+1]);
}
debug(a);
ord.clear();
for (int i = 0; i<d; i++){
if (last[i] > R && !tab[i]){
ord.emplace_back(last[i], i);
}
}
stable_sort(ord.begin(), ord.end());
debug(ord);
int r = -1;
int curr = 0;
pocz.assign(mx, -1); kon.assign(mx, -1);
int mn = oo;
for (int l = 0; l < d; l++){
while (curr < S){
curr += a[++r];
}
if (curr == S){
pocz[l] = r;
kon[r] = max(kon[r], l);
ans = min(ans, (R-L+1)*(r-l+1));
mn = min(mn, r-l+1);
}
curr -= a[l];
}
debug(pocz);
debug(kon);
//i teraz bedziemy ustawiac 0 na niektorych pozycjach
for (auto [R2, i]: ord){
for (auto p: {i, i+d}){
//1. przedzial zaczynajacy sie w p
int newl = nxt[p];
if (pocz[p] != -1 && newl != oo) {
//nowy przedzial(!)
debug(p, pocz[p], newl);
pocz[newl] = pocz[p];
kon[pocz[p]] = newl;
mn = min(mn, pocz[p]-newl+1);
}
//2. przedzial konczacy sie w p
int newr = prev[p];
if (kon[p] != -1 && newr != oo){
kon[newr] = max(kon[newr], kon[p]);
pocz[kon[p]] = newr;
mn = min(mn, newr-kon[p]+1);
}
if (prev[p] != oo) nxt[prev[p]] = nxt[p];
if (nxt[p] != oo) prev[nxt[p]] = prev[p];
}
debug(R2-L+1, mn);
ans = min(ans, (R2-L+1)*mn);
}
};
int R = -1;
tab.assign(d, 0);
for (int L = 0; L < d; L++){
while (R+1 < 2*d && sum != n){
add(++R);
}
if (sum == n){
// debug(L, R);
// debug(last);
// debug(tab);
// debug(cnt);
calc(L, R, tab);
}
remove(L);
}
cout << ans << "\n";
}
int32_t main(){
ios_base::sync_with_stdio(0);
cin.tie(0);
cout.tie(0);
solve();
return 0;
}
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