Submission #29777

#	Time	Username	Problem	Language	Result	Execution time	Memory
29777		Nikefor	Art Class (IOI13_artclass)	C++98	6 / 100	188 ms	37804 KiB

artclass

#include "artclass.h"
#include<cmath>
int ctr = 0;
bool visit[501][501];
int h, w;
int r[500][500], g[500][500], b[500][500];
bool match(int i1, int j1, int i2, int j2) {
    if(std::abs(r[i1][j1]-r[i2][j2]) > 50 ) return false;
    if(std::abs(g[i1][j1]-g[i2][j2]) > 50 ) return false;
    if(std::abs(b[i1][j1]-b[i2][j2]) > 50 ) return false;
    return true;
}
void DFS(int i, int j) {
    visit[i][j] = true;
    if(i!=0 and match(i, j, i-1, j) and !visit[i-1][j]) DFS(i-1,j);
    if(i!=h-1 and match(i, j, i+1, j) and !visit[i+1][j]) DFS(i+1, j);
    if(j!=0 and match(i, j, i, j-1) and !visit[i][j-1]) DFS(i,j-1);
    if(j!=w-1 and match(i, j, i, j+1) and !visit[i][j+1]) DFS(i, j+1);

}

int style(int H, int W, int R[500][500], int G[500][500], int B[500][500]) {
    h = H, w = W;
    for(int i=0; i<h; i++)
        for(int j=0; j<500; j++) {
            r[i][j] = R[i][j];
            g[i][j] = G[i][j];
            b[i][j] = B[i][j];
        }
    for(int i=0; i<500; i++)
        for(int j=0; j<500; j++) {
            if(!visit[i][j]) {
                ctr++;
                DFS(i,j);
            }
        }
 //   if(ctr<7) return 4;
    //if(ctr<800) return 2;
    if(ctr<3000) return 1;


    return 3;
}

• Subtask 1: 6 / 100