Submission #379885

#	Time	Username	Problem	Language	Result	Execution time	Memory
379885		WLZ	Art Class (IOI13_artclass)	C++14	80 / 100	75 ms	6124 KiB

artclass

#include "artclass.h"
#include <bits/stdc++.h>
using namespace std;

const vector<int> dx = {1, -1, 0, 0};
const vector<int> dy = {0, 0, 1, -1};

int style(int H, int W, int R[500][500], int G[500][500], int B[500][500]) {
  double val = 0.0;
  int cnt = 0;
  for (int i = 0; i < H; i++) {
    for (int j = 0; j < W; j++) {
      for (int k = 0; k < 4; k++) {
        int ni = i + dx[k], nj = j + dy[k];
        if (ni < 0 || nj < 0 || ni >= H || nj < 0) continue;
        val += abs(R[i][j] - R[ni][nj]) + abs(G[i][j] - G[ni][nj]) + abs(G[i][j] - G[ni][nj]);
        cnt += 3;
      }
    }
  }
  if (val / cnt < 3.0) return 4;
  if (val / cnt < 6.0) return 1;
  if (val / cnt < 15.0) return 2;
  return 3;
}

• Subtask 1: 80 / 100