이 제출은 이전 버전의 oj.uz에서 채점하였습니다. 현재는 제출 당시와는 다른 서버에서 채점을 하기 때문에, 다시 제출하면 결과가 달라질 수도 있습니다.
#include<bits/stdc++.h>
#define fi first
#define se second
#define pitem item*
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
typedef vector<int> vi;
typedef vector<ll> vl;
const int N=5e3+10;
const int SS=1<<19;
const int INFi=2e9;
const ll INFl=1e16;
const ll mod2=998244353;
const ll mod=1e9+7;
const ll mod3=2027865967;
const ll p=70032301;
const ull p2=913;
const int L=20;
int t[N],n,m,d;
pair<int,int> li[N];
bitset<N> tr[N],m1,m2,moz;
vi g[N*2];
void solve(){
cin>>n>>m>>d;
for(int i=1;i<=n;i++){
int a,b;
cin>>a>>b;
m1[a]=1,m2[b]=1;
}
for(int i=1;i<=m;i++){
int a,b;
cin>>a>>b;
tr[a][b]=1;
moz[b]=1;
}
for(int i=0;i<d;i++){
if(m2[i]) continue;
for(int i2=d*2-1;i2>=d;i2--){
if(tr[i2-d][i]){
g[i2].push_back(i);
break;
}
}
}
int res=INFi;
for(int i=d-1;i>=0;i--){
for(auto u:g[i+d]){
for(int i2=i+d-1;i2>=i;i2--){
int id=(i2>=d?i2-d:i2);
if(tr[id][u]){
g[i2].push_back(u);
break;
}
}
}
int pop=-1,maxir=0;
for(int i2=0;i2<d;i2++){
li[i2].fi=pop;
if(m2[i2] or moz[i2]) pop=i2;
}
int ost=pop;
pop=-1;
for(int i2=d-1;i2>=0;i2--){
li[i2].se=pop;
if(pop!=-1){
maxir=max(maxir,pop-i2-1);
}
if(m2[i2] or moz[i2]) pop=i2;
}
int pierw=pop,pom=0;
for(int i2=i;i2<i+d;i2++){
int id=(i2>=d?i2-d:i2);
if(m1[id]) pom=i2;
}
for(int i2=i;i2<i+d;i2++){
for(auto u:g[i2]){
if(li[u].fi==-1){
pierw=li[u].se;
li[li[u].se].fi=-1;
}
if(li[u].se==-1){
ost=li[u].fi;
li[li[u].fi].se=-1;
}
if(li[u].se!=-1 and li[u].fi!=-1){
maxir=max(maxir,li[u].se-li[u].fi-1);
li[li[u].fi].se=li[u].se;
li[li[u].se].fi=li[u].fi;
}
}
if(i2>=pom){
res=min(res,(i2-i+1)*min(d-maxir,ost-pierw+1));
}
}
}
cout<<res<<"\n";
}
int main(){
ios_base::sync_with_stdio(0),cin.tie(0);
int tt=1;
while(tt--) solve();
}
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