Matura 2017 - Piksele

#include <iostream>
#include <fstream>
#include <string>

bool loadFile(std::string fileToOpen);
int taskOne();
int taskTwo();
int taskThree();

int table[320][200];

int main() {
    if (!loadFile("dane.txt")) {
        return 0;
    }

    taskOne();
    taskTwo();
    taskThree();

    std::cin.get();

    return 1;
}

bool loadFile(std::string fileToOpen) {
    std::fstream openFile(fileToOpen);

    if (!openFile.good())
        return 0;

    for (int y = 0; y < 200; y++) {
        for (int x = 0; x < 320; x++) {
            openFile >> table[x][y];
        }
    }
    openFile.close();

    return 1;
}

int taskOne() {

    int maxValue = 0;   // Granica dolna dziedziny
    int minValue = 255; // Granica górna dziedziny

    for (int y = 0; y < 200; y++) {
        for (int x = 0; x < 320; x++) {
            if (table[x][y] > maxValue) {
                maxValue = table[x][y];
            }
            if (table[x][y] < minValue) {
                minValue = table[x][y];
            }
        }
    }

    std::cout << "MinValue: " << minValue << std::endl;
    std::cout << "MaxValue: " << maxValue << std::endl;

    return 1;
}

int taskTwo() {
    int howManyToErase = 0;

    for (int y = 0; y < 200; y++) {
        for (int x = 0; x < 160; x++) {
            if (table[x][y] != table[319 - x][y]) { // Ostatni element tablicy w rzędzie x ma indeks 319
                howManyToErase++;
                break;
            }
        }
    }

    std::cout << "We need to erase " << howManyToErase << " lines!" << std::endl;

    return 1;
}

int taskThree() {
    int howManyPixels = 0;

    for (int y = 0; y < 200; y++) {
        for (int x = 0; x < 320; x++) {
            if      ((table[x+1][y] - table[x][y] > 128 || table[x+1][y] - table[x][y] < -128) && x != 319) howManyPixels++;
            else if ((table[x-1][y] - table[x][y] > 128 || table[x-1][y] - table[x][y] < -128) && x != 0) howManyPixels++;
            else if ((table[x][y+1] - table[x][y] > 128 || table[x][y+1] - table[x][y] < -128) && y != 199) howManyPixels++;
            else if ((table[x][y-1] - table[x][y] > 128 || table[x][y-1] - table[x][y] < -128) && y != 0) howManyPixels++;
        }
    }

    std::cout << "There are " << howManyPixels << " specific Pixels!" << std::endl;

    return 1;
}