Submission #29607

#	Time	Username	Problem	Language	Result	Execution time	Memory
29607		dereotu	Art Class (IOI13_artclass)	C++14	0 / 100	193 ms	22984 KiB

artclass

#include "artclass.h"
#include <bits/stdc++.h>
#define pii pair<int,int>
#define mp make_pair
#define pb push_back
#define st first
#define nd second
#define forr(i,A,B) for(int i=A;i<B;++i)
#define space ' '
#define endl '\n'
#define LL long long
using namespace std;

int vis[500][500];

int dr[]={1,0,0,-1};
int dl[]={0,1,-1,0};
int green,cnt,advcnt;
int g[500][500],r[500][500],b[500][500];
int h,w;
void type2(int x,int y){
	if(vis[x][y]) return;
	if(g[x][y]>100 and r[x][y]<100 and b[x][y]<100) green++;
	vis[x][y]=1;
	forr(i,0,4){
		int nx=x+dr[i];
		int ny=y+dl[i];
		if(nx>=0 and nx<h and ny>=0 and ny<w and !vis[x+dr[i]][y+dl[i]]){
			type2(x+dr[i],y+dl[i]);
		}
	}
}

void floodfill(int x,int y){
	if(vis[x][y]) return;
	vis[x][y]=1;
	forr(i,0,4){
		int nx=x+dr[i];
		int ny=y+dl[i];
		if(nx>=0 and nx<h and ny>=0 and ny<w and !vis[x+dr[i]][y+dl[i]]){
			if(g[x+dr[i]][y+dl[i]]<=50 and r[x+dr[i]][y+dl[i]]<=50 and b[x+dr[i]][y+dl[i]]<=50) continue;
			floodfill(x+dr[i],y+dl[i]);
		}
	}
}

void advancedflood(int x,int y){
	if(vis[x][y]) return;
	vis[x][y]=1;
	forr(i,0,4){
		int nx=x+dr[i];
		int ny=y+dl[i];
		if(nx>=0 and nx<h and ny>=0 and ny<w and !vis[x+dr[i]][y+dl[i]]){
			if(g[x][y]-g[x+dr[i]][y+dl[i]]>=50 or r[x][y]-r[x+dr[i]][y+dl[i]]>=50 or b[x][y]-b[x+dr[i]][y+dl[i]]>=50) continue;
			advancedflood(x+dr[i],y+dl[i]);
		}
	}
}


int style(int H, int W, int R[500][500], int G[500][500], int B[500][500]) {
	type2(0,0);
	forr(i,0,500) forr(j,0,500){
		r[i][j]=R[i][j];
		b[i][j]=B[i][j];
		g[i][j]=G[i][j];
	}
	h=H;
	w=W;
	if(green>=H*W*0.7) return 2;
	forr(i,0,500){
		forr(j,0,500){
			if(!vis[i][j]){
				++cnt;
				floodfill(i,j);
			}
		}
	}
	memset(vis,0,sizeof vis);
	forr(i,0,500){
		forr(j,0,500){
			if(!vis[i][j]){
				++advcnt;
				advancedflood(i,j);
			}
		}
	}
	if(cnt>=15) return 1;
	if(advcnt<=5) return 4;
	else return 3;

}

• Subtask 1: 0 / 100