#include "artclass.h"
#include <bits/stdc++.h>
using namespace std;
constexpr static int MXSIZE = 500;
constexpr static int CHANNEL = 3;
array<int, 3> image[MXSIZE][MXSIZE];
int style(int H, int W, int R[500][500], int G[500][500], int B[500][500])
{
for (int i = 0; i < H; i++)
for (int j = 0; j < W; j++)
image[i][j] = {R[i][j], G[i][j], B[i][j]};
int64_t change = 0;
for (int i = 0; i < H-1; i++)
for (int j = 0; j < W-1; j++)
for (int c = 0; c < CHANNEL; c++)
change += abs(image[i][j][c] - image[i][j+1][c]) + abs(image[i][j][c] - image[i+1][j][c]);
int64_t total_size = H*W;
int difference = change / total_size;
if (difference <= 15)
return 4;
else if (difference <= 50)
return 1;
else if (difference <= 90)
return 2;
return 3;
}
