Submission #962334

#	Time	Username	Problem	Language	Result	Execution time	Memory
962334		serkanrashid	Art Class (IOI13_artclass)	C++14	0 / 100	64 ms	21000 KiB

artclass

#include "artclass.h"
#include <bits/stdc++.h>

using namespace std;

int h,w;

struct Point
{
    int x,y;
    Point(){};
    Point(int xi, int yi)
    {
        x = xi;
        y = yi;
    }
    bool is_valid()
    {
        return x>=0&&x<h&&y>=0&&y<w;
    }
};

Point dir[4] = {{1,0},{-1,0},{0,1},{0,-1}};
int r[500][500],g[500][500],b[500][500];
int c[500][500],used[500][500];

vector<int>comp;
map<int,int>mymap;
vector<int>pr;

void dfs(Point beg)
{
    used[beg.x][beg.y] = 1;
    for(int i = 0; i < 4; i++)
    {
        Point nb;
        nb.x = beg.x + dir[i].x;
        nb.y = beg.y + dir[i].y;
        if(nb.is_valid() && !used[nb.x][nb.y]) dfs(nb);
    }
}

void ps(int x, int y)
{
    for(int i=x;i<h;i++)
    {
        if(used[i][y]) break;
        used[i][y] = 1;
        for(int j=y+1;j<w;j++)
        {
            if(used[i][j]) break;
            used[i][j] = 1;
        }
    }
    pr.push_back(c[x][y]);
}

int col_br;
int style(int H, int W, int R[500][500], int G[500][500], int B[500][500])
{
    h = H;
    w = W;
    int avg;
    int x,y,z;
    for(int i = 0; i < H; i++)
    {
        for(int j = 0; j < W; j++)
        {
            avg += R[i][j]+G[i][j]+B[i][j];
            x += R[i][j];
            y += G[i][j];
            z += B[i][j];
            r[i][j] = R[i][j]/10;
            g[i][j] = G[i][j]/10;
            b[i][j] = B[i][j]/10;
            c[i][j] = r[i][j]*10000 + g[i][j]*100 + b[i][j];
        }
    }
    avg /= (H*W);
    for(int i = 0; i < H; i++)
    {
        for(int j = 0; j < W; j++)
        {
            if(!used[i][j])
            {
                dfs({i,j});
                comp.push_back(c[i][j]);
                mymap[c[i][j]]++;
                if(mymap[c[i][j]]==1) col_br++;
            }
        }
    }
    memset(used,0,sizeof(used));
    for(int i = 0; i<H;i++)
    {
        for(int j=0;j<W;j++)
        {
            ps(i,j);
        }
    }
    int csz = comp.size();
    int psz = pr.size();
    if(col_br<=5&&abs(csz-psz)<=5) return 4;
    if(col_br<=7&&abs(csz-psz)<=csz) return 1;
    if(col_br<=120&&avg<=95) return 3;
    return 2;
}

/*int main()
{
    int h,w;
    int R[500][500],G[500][500],B[500][500];
    cout << style(h,w,R,G,B) << endl;
    return 0;
}*/

Compilation message (stderr)

artclass.cpp: In function 'int style(int, int, int (*)[500], int (*)[500], int (*)[500])':
artclass.cpp:79:9: warning: 'avg' may be used uninitialized in this function [-Wmaybe-uninitialized]
   79 |     avg /= (H*W);
      |     ~~~~^~~~~~~~

• Subtask 1: 0 / 100