Submission #1035723

#	Time	Username	Problem	Language	Result	Execution time	Memory
1035723		why_5_mins	Art Class (IOI13_artclass)	C++14	27 / 100	77 ms	23120 KiB

artclass

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

using namespace std;

int HH,WW;

int const_dif_lejer = 50;
int const_dif_hard = 20;
int RR[505][505],GG[505][505],BB[505][505];

bool similar(int r1, int g1, int b1, int r2, int g2, int b2, int const_dif)
{
    if (abs(r1 - r2) > const_dif or abs(g1 - g2) > const_dif or abs(b1 - b2) > const_dif)
        return false;
    return true;
}

bool sim(int l1, int c1, int l2, int c2)
{
    return similar(RR[l1][c1], GG[l1][c1], BB[l1][c1], RR[l2][c2], GG[l2][c2], BB[l2][c2], const_dif_lejer);
}

int dl[] = {-1,0,1,0};
int dc[] = {0,1,0,-1};
bool viz[505][505];

void dfs(int lin, int col)
{
    viz[lin][col] = true;
    for (int i = 0; i < 4; i++)
    {
        int nl = lin + dl[i],nc = col + dc[i];
        if (nl >= 0 and nl < HH and nc >= 0 and nc < WW and sim(lin,col,nl,nc) and !viz[nl][nc])
            dfs(nl,nc);
    }
}

bool stil_4()
{
    for (int i = 0; i < HH; i++)
        for (int j = 0; j < WW; j++)
            viz[i][j] = false;
    int cc = 0;
    for (int i = 0; i < HH; i++)
        for (int j = 0; j < WW; j++)
            if (!viz[i][j])
                cc++,dfs(i,j);
    if (cc <= 10)
        return true;
    return false;
}

int style(int H, int W, int R[500][500], int G[500][500], int B[500][500])
{
    HH = H;
    WW = W;
    for (int i = 0; i < H; i++)
        for (int j = 0; j < W; j++)
            RR[i][j] = R[i][j],GG[i][j] = G[i][j],BB[i][j] = B[i][j];
    vector<bool> could_be(5);
    for (int i = 1; i <= 4; i++)
        could_be[i] = true;
    int cnt_nonculoare = 0,cnt_alb = 0,cnt_negru = 0;
    for (int i = 0; i < H; i++)
    {
        for (int j = 0; j < W; j++)
        {
            if (similar(R[i][j],G[i][j],B[i][j],0,0,0,const_dif_lejer))
                cnt_negru++;
            if (similar(R[i][j],G[i][j],B[i][j],255,255,255,const_dif_lejer))
                cnt_alb++;
        }
    }
    cnt_nonculoare = cnt_alb + cnt_negru;
    double proc_alb = (double)cnt_alb / (double)(H * W);
    double proc_negru = (double)cnt_negru / (double)(H * W);
    double proc_nonculoare = (double)cnt_nonculoare / (double)(H * W);
    int sum_R = 0, sum_G = 0, sum_B = 0;
    for (int i = 0; i < H; i++)
    {
        for (int j = 0; j < W; j++)
        {
            sum_R += R[i][j];
            sum_G += G[i][j];
            sum_B += B[i][j];
        }
    }
    double proc_R = (double)sum_R / (double)(sum_R + sum_G + sum_B);
    double proc_G = (double)sum_G / (double)(sum_R + sum_G + sum_B);
    double proc_B = (double)sum_G / (double)(sum_R + sum_G + sum_B);
    int cate_dom_G = 0,cate_dom_R = 0, cate_dom_B = 0;
    for (int i = 0; i < H; i++)
    {
        for (int j = 0; j < W; j++)
        {
            int r = R[i][j] - 20,g = G[i][j],b = B[i][j];
            if (g > max(r,b) + 10)
                cate_dom_G++;
            if (r > max(g,b) + 10)
                cate_dom_R++;
            if (b > max(g,r) + 10)
                cate_dom_B++;
        }
    }
    double proc_dom_G = 0,proc_dom_R = 0,proc_dom_B = 0;
    int sm_dom = cate_dom_R + cate_dom_G + cate_dom_B;
    if (sm_dom != 0)
    {
        proc_dom_G = (double)cate_dom_G / (double)sm_dom;
        proc_dom_R = (double)cate_dom_R / (double)sm_dom;
        proc_dom_B = (double)cate_dom_B / (double)sm_dom;
    }
    //cout << setprecision(10) << fixed;
    //cout << proc_dom_R << ' ' << proc_dom_G << ' ' << proc_dom_B << endl;
    if (proc_alb >= 0.2d)
        return 1;
    if (stil_4())
        return 4;
    return 2;
}

Compilation message (stderr)

artclass.cpp: In function 'int style(int, int, int (*)[500], int (*)[500], int (*)[500])':
artclass.cpp:77:12: warning: unused variable 'proc_negru' [-Wunused-variable]
   77 |     double proc_negru = (double)cnt_negru / (double)(H * W);
      |            ^~~~~~~~~~
artclass.cpp:78:12: warning: unused variable 'proc_nonculoare' [-Wunused-variable]
   78 |     double proc_nonculoare = (double)cnt_nonculoare / (double)(H * W);
      |            ^~~~~~~~~~~~~~~
artclass.cpp:89:12: warning: unused variable 'proc_R' [-Wunused-variable]
   89 |     double proc_R = (double)sum_R / (double)(sum_R + sum_G + sum_B);
      |            ^~~~~~
artclass.cpp:90:12: warning: unused variable 'proc_G' [-Wunused-variable]
   90 |     double proc_G = (double)sum_G / (double)(sum_R + sum_G + sum_B);
      |            ^~~~~~
artclass.cpp:91:12: warning: unused variable 'proc_B' [-Wunused-variable]
   91 |     double proc_B = (double)sum_G / (double)(sum_R + sum_G + sum_B);
      |            ^~~~~~
artclass.cpp:106:12: warning: variable 'proc_dom_G' set but not used [-Wunused-but-set-variable]
  106 |     double proc_dom_G = 0,proc_dom_R = 0,proc_dom_B = 0;
      |            ^~~~~~~~~~
artclass.cpp:106:27: warning: variable 'proc_dom_R' set but not used [-Wunused-but-set-variable]
  106 |     double proc_dom_G = 0,proc_dom_R = 0,proc_dom_B = 0;
      |                           ^~~~~~~~~~
artclass.cpp:106:42: warning: variable 'proc_dom_B' set but not used [-Wunused-but-set-variable]
  106 |     double proc_dom_G = 0,proc_dom_R = 0,proc_dom_B = 0;
      |                                          ^~~~~~~~~~

• Subtask 1: 27 / 100