Submission #68976

#	Time	Username	Problem	Language	Result	Execution time	Memory
68976		MANcity	Park (BOI16_park)	C++14	0 / 100	2564 ms	15992 KiB

park

///GAGO_O
#include<iostream>
#include<cstdio>
#include<fstream>
#include<algorithm>
#include<cmath>
#include<map>
#include<queue>
#include<set>
#include<stack>
#include<string>
#include<cstring>
#include<vector>
using namespace std;
#define for1(i,n) for(int i=1;i<=(int)n;i++)
#define for0(i,n) for(int i=0;i<=(int)n;i++)
#define forn(i,n) for(int i=n;i>=1;i--)
#define fo(i,x,y) for(int i=x;i<=(int)y;i++)
#define fr(i,x,y) for(int i=x;i>=(int)y;i--)
#define pb push_back
#define mp make_pair
#define LL long long
const LL Mod=1000*1000*1000+7;
int n,m;
int w,h;
LL x[20002],y[2002],r[2002];
int jan[2002][2002];
int ka[2002][2002];
int used[2002];
int MY[10][10];
int X;
int K;
LL hat(LL x1,LL y1,LL r1,LL x2,LL y2,LL r2)
{
    LL dist=(LL)(x1-x2)*(LL)(x1-x2)+(LL)(y1-y2)*(LL)(y1-y2);
    LL R=(LL)(r1+r2)*(LL)(r1+r2);
    if(R>dist)
        return 1;
    return 0;
}
void dfs(int v)
{
    jan[X][v]=1;
    jan[v][X]=1;
    used[v]=1;
    for1(i,n)
    {
        if(used[i]==0 && hat(x[v],y[v],r[v]+K,x[i],y[i],r[i]+K)==1)
            dfs(i);
    }
}
vector<int> uxhat(int x,int y,int r)
{
    r+=K;
    vector<int> ans;
    if((x-r)<K)
        ans.push_back(1);
    if((y+r)>h-K)
        ans.push_back(2);
    if((x+r)>w-K)
        ans.push_back(3);
    if((y-r)<K)
        ans.push_back(4);
    return ans;
}
void f(int k)
{
    for1(i,5)
        for1(j,5)
            MY[i][j]=1;
    K=k;
    for1(i,n)
        if(hat(k,k,0,x[i],y[i],r[i]+K)==1)
            for1(z,5)
            {
                MY[1][z]=0;
                MY[z][1]=0;
            }
    for1(i,n)
        if(hat(k,h-k,0,x[i],y[i],r[i]+K)==1)
            for1(z,5)
            {
                MY[4][z]=0;
                MY[z][4]=0;
            }
    for1(i,n)
        if(hat(w-k,h-k,0,x[i],y[i],r[i]+K)==1)
            for1(z,5)
            {
                MY[3][z]=0;
                MY[z][3]=0;
            }
    for1(i,n)
        if(hat(w-k,k,0,x[i],y[i],r[i]+K)==1)
            for1(z,5)
            {
                MY[2][z]=0;
                MY[z][2]=0;
            }
    K=k;
    for1(i,n)
        used[i]=0;
    for1(i,n)
        for1(j,n)
            jan[i][j]=0;
    for1(i,n)
    {
        if(used[i]==0)
        {
            X=i;
            dfs(X);
        }
    }
    for1(i,n)
    {
        for1(j,n)
        {
            if(i!=j && jan[i][j]==1)
            {
               int AA[10];
               int BB[10];
               for1(z,5)
               {
                    AA[z]=0;
                    BB[z]=0;
               }
               vector<int> A=uxhat(x[i],y[i],r[i]);
               vector<int> B=uxhat(x[j],y[j],r[j]);
               for0(z,A.size()-1)
                    AA[A[z]]=1;
                for0(z,B.size()-1)
                    BB[B[z]]=1;
                if(AA[1]==1 && BB[4]==1)
                {
                    MY[1][4]=0;
                    MY[1][3]=0;
                    MY[1][2]=0;
                }
                if(AA[1]==1 && BB[3]==1)
                {
                    MY[1][3]=0;
                    MY[1][4]=0;
                    MY[2][3]=0;
                    MY[2][4]=0;
                }
                if(AA[1]==1 && BB[2]==1)
                {
                    MY[1][4]=0;
                    MY[2][4]=0;
                    MY[3][4]=0;
                }
                if(AA[2]==1 && BB[3]==1)
                {
                    MY[4][3]=0;
                    MY[1][3]=0;
                    MY[2][3]=0;
                }
                if(AA[2]==1 && BB[4]==1)
                {
                    MY[4][3]=0;
                    MY[4][2]=0;
                    MY[1][3]=0;
                    MY[1][2]=0;
                }
                if(AA[3]==1 && BB[4]==1)
                {
                    MY[1][2]=0;
                    MY[4][2]=0;
                    MY[3][2]=0;
                }
            }
        }
    }
}
int main()
{
    cin>>n>>m;
    cin>>w>>h;
    for1(i,n)
        cin>>x[i]>>y[i]>>r[i];
    for1(i,n)
    {
        int r,e;
        cin>>r>>e;
        f(r);
        for1(j,4)
            if(MY[e][j]==1 && MY[j][e]==1)
                cout<<j;
        cout<<endl;
    }
    return 0;

}
/*5 3
16 11
11 8 1
6 10 1
7 3 2
10 4 1
15 5 1
*/

• Subtask 1: 0 / 27
• Subtask 2: 0 / 31
• Subtask 3: 0 / 42