Submission #469580

#	Time	Username	Problem	Language	Result	Execution time	Memory
469580		alextodoran	Art Class (IOI13_artclass)	C++17	80 / 100	86 ms	6068 KiB

artclass

/**
 ____ ____ ____ ____ ____
||a |||t |||o |||d |||o ||
||__|||__|||__|||__|||__||
|/__\|/__\|/__\|/__\|/__\|

**/

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

using namespace std;

typedef long long ll;

const int HW_MAX = 500;

ll sq (ll a)
{
    if(a < 0)
        return -sqrt(-a);
    return sqrt(a);
}

int getMess (int H, int W, int R[HW_MAX][HW_MAX], int G[HW_MAX][HW_MAX], int B[HW_MAX][HW_MAX])
{
    ll res = 0;
    for(int i = 0; i < H; i++)
        for(int j = 0; j < W; j++)
        {
            if(i > 0)
            {
                ll val = 0;
                val += abs(R[i][j] - R[i - 1][j]);
                val += abs(G[i][j] - G[i - 1][j]);
                val += abs(B[i][j] - B[i - 1][j]);
                res += val * val;
            }
            if(j > 0)
            {
                ll val = 0;
                val += abs(R[i][j] - R[i][j - 1]);
                val += abs(G[i][j] - G[i][j - 1]);
                val += abs(B[i][j] - B[i][j - 1]);
                res += val * val;
            }
        }
    res = sq(res) * 1000;
    res /= (H * W);
    return res;
}
int getWhite (int H, int W, int R[HW_MAX][HW_MAX], int G[HW_MAX][HW_MAX], int B[HW_MAX][HW_MAX])
{
    ll res = 0;
    for(int i = 0; i < H; i++)
        for(int j = 0; j < W; j++)
        {
            int mx = max({R[i][j], G[i][j], B[i][j]});
            int mn = min({R[i][j], G[i][j], B[i][j]});
            if(mx - mn < 30 && (mx > 220 || mn < 10))
                res += 10000;
        }
    res /= (H * W);
    return res;
}

int style (int H, int W, int R[HW_MAX][HW_MAX], int G[HW_MAX][HW_MAX], int B[HW_MAX][HW_MAX])
{
    int mess = getMess(H, W, R, G, B);
    int white = getWhite(H, W, R, G, B);
    if(mess > 220)
        return 3;
    if(white > 3000)
        return 1;
    if(mess < 100)
        return 4;
    return 2;
}

• Subtask 1: 80 / 100