Submission #743939

#	Time	Username	Problem	Language	Result	Execution time	Memory
743939		jamielim	Izvanzemaljci (COI21_izvanzemaljci)	C++14	5 / 100	225 ms	25588 KiB

izvanzemaljci

#include <bits/stdc++.h>
using namespace std;

#define int long long

#define fi first
#define se second
#define mp make_pair
#define pb emplace_back
#define ALL(x) x.begin(),x.end()
#define SZ(x) (int)x.size()
typedef long long ll;
typedef pair<int,int> ii;
typedef pair<ii,ii> i4;
typedef vector<int> vi;
const int MOD=1000000007;
const int INF=1012345678;
const ll LLINF=1012345678012345678LL;
const double PI=3.1415926536;
const double EPS=1e-14;

int n,k;
vector<ii> all;
map<int,vector<int> > row,col;

vector<int> find_one_square(vector<ii> v){
	if(SZ(v)==0)return {0,0,1};
	int minx=LLINF,maxx=-LLINF,miny=LLINF,maxy=-LLINF;
	for(ii i:v){
		minx=min(minx,i.fi);
		maxx=max(maxx,i.fi);
		miny=min(miny,i.se);
		maxy=max(maxy,i.se);
	}
	int l=max(1LL,max(maxx-minx,maxy-miny));
	return {minx,miny,l};
}

bool disjoint(vector<int> v1,vector<int> v2){
	return (v1[0]+v1[2]<v2[0])||(v2[0]+v2[2]<v1[0])||(v1[1]+v1[2]<v2[1])||(v2[1]+v2[2]<v1[1]);
}

int32_t main(){
	scanf("%lld%lld",&n,&k);
	int x,y;
	for(int i=0;i<n;i++){
		scanf("%lld%lld",&x,&y);
		all.pb(x,y);
		row[y].pb(x);
		col[x].pb(y);
	}
	if(k==1){
		vector<int> ans=find_one_square(all);
		printf("%lld %lld %lld\n",ans[0],ans[1],ans[2]);
	}else if(k==2){
		int le=3*INF;
		vector<int> ans[2];
		vector<ii> pre,pst;
		for(auto it=row.begin();it!=row.end();++it){
			sort(ALL(it->se));
			pre.clear();pst.clear();
			for(ii i:all){
				if(i.se<it->fi)pre.pb(i);
				if(i.se>it->fi)pst.pb(i);
			}
			for(int i:it->se){
				pst.pb(i,it->fi);
			}
			for(int i=0;i<SZ(it->se);i++){
				vector<int> a1=find_one_square(pre);
				vector<int> a2=find_one_square(pst);
				if(max(a1[2],a2[2])<le&&disjoint(a1,a2)){
					le=max(a1[2],a2[2]);
					ans[0]=a1;ans[1]=a2;
				}
				pre.pb(pst.back());
				pst.pop_back();
			}
			pre.clear();pst.clear();
			for(ii i:all){
				if(i.se<it->fi)pre.pb(i);
				if(i.se>it->fi)pst.pb(i);
			}
			for(int i=SZ(it->se)-1;i>=0;i--){
				pst.pb(i,it->fi);
			}
			for(int i=0;i<SZ(it->se);i++){
				vector<int> a1=find_one_square(pre);
				vector<int> a2=find_one_square(pst);
				if(max(a1[2],a2[2])<le&&disjoint(a1,a2)){
					le=max(a1[2],a2[2]);
					ans[0]=a1;ans[1]=a2;
				}
				pre.pb(pst.back());
				pst.pop_back();
			}
		}
		for(auto it=col.begin();it!=col.end();++it){
			sort(ALL(it->se));
			pre.clear();pst.clear();
			for(ii i:all){
				if(i.fi<it->fi)pre.pb(i);
				if(i.fi>it->fi)pst.pb(i);
			}
			for(int i:it->se){
				pst.pb(i,it->fi);
			}
			for(int i=0;i<SZ(it->se);i++){
				vector<int> a1=find_one_square(pre);
				vector<int> a2=find_one_square(pst);
				if(max(a1[2],a2[2])<le&&disjoint(a1,a2)){
					le=max(a1[2],a2[2]);
					ans[0]=a1;ans[1]=a2;
				}
				pre.pb(pst.back());
				pst.pop_back();
			}
			pre.clear();pst.clear();
			for(ii i:all){
				if(i.fi<it->fi)pre.pb(i);
				if(i.fi>it->fi)pst.pb(i);
			}
			for(int i=SZ(it->se)-1;i>=0;i--){
				pst.pb(i,it->fi);
			}
			for(int i=0;i<SZ(it->se);i++){
				vector<int> a1=find_one_square(pre);
				vector<int> a2=find_one_square(pst);
				if(max(a1[2],a2[2])<le&&disjoint(a1,a2)){
					le=max(a1[2],a2[2]);
					ans[0]=a1;ans[1]=a2;
				}
				pre.pb(pst.back());
				pst.pop_back();
			}
		}
		for(int i=0;i<2;i++){for(int j=0;j<3;j++)printf("%lld ",ans[i][j]);printf("\n");}
	}else{
		
	}
}

Compilation message (stderr)

izvanzemaljci.cpp: In function 'int32_t main()':
izvanzemaljci.cpp:44:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   44 |  scanf("%lld%lld",&n,&k);
      |  ~~~~~^~~~~~~~~~~~~~~~~~
izvanzemaljci.cpp:47:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   47 |   scanf("%lld%lld",&x,&y);
      |   ~~~~~^~~~~~~~~~~~~~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 0 / 21
• Subtask 3: 0 / 12
• Subtask 4: 0 / 30
• Subtask 5: 0 / 32