Spiraali

// TaskCSpiral.cpp : This file contains the 'main' function. Program execution begins and ends there.
//

#include <iostream>
#include <map>
#include <string>

using namespace std;

int main()
{
    int size; //size
    int tests; //tests
    cin >> size;
    cin >> tests;

    for (int i = 0; i < tests; i++) {
        int x;
        int y;
        cin >> y;
        cin >> x;

        int layer = 0;

        if (x > y && y <= size / 2 && x + y - 1 < size) {
            layer = y;
        }
        else if ((x <= size / 2 && size - y >= x) || x > y) {
            layer = x;
        }
        else {
            layer = y;
        }

        //System.out.println("og layer " + layer);

        if (layer > size / 2) layer = size / 2 - (layer - size / 2) + 1;

        int width = (size - (layer - 1) * 2);
        //System.out.println("width " + width + " layer " + layer);

        int tArea = 0;

        if (layer > size / 4) { //more than half in
            tArea = size * size;
            for (int l = size/2; l >= layer; l--) {
                tArea -= ((size - (l - 1) * 2) * 4 - 4);
                //cout << "layer " << layer << " subtracting " << to_string(((size - (l - 1) * 2) * 4 - 4)) << "\n";
                //cout << "area now " << tArea << "\n";
                //int tArea2 = 0;
                //for (int l = 1; l < layer; l++) {
                //    tArea2 += (size - (layer - 1 - l) * 2) * 4 - 4;
                //}
                //cout << "wouldve been " << tArea2 << "\n";
            }
        }
        else { //more out than half
            for (int l = 1; l < layer; l++) {
                tArea += (size - (layer - 1 - l) * 2) * 4 - 4;
            }
        }

        if (x == layer) { //left d
            tArea += (y - (layer - 1));
            //System.out.println("left");
        }
        else if (x == size - layer + 1 && x != y) {//right d
            tArea += width * 3 - (layer + y - (layer - 1) * 2);
            //System.out.println("right");
        }
        else if (y == layer) {//top d
            tArea += width * 4 - 1 - (x - (layer - 1) * 2 + layer);
            //System.out.println("top");
        }
        else if (y == size - layer + 1) {//bottom d
            tArea += width * 2 - 1 - (width - (x - (layer - 1)));
            //System.out.println("bottom");
        }

        //current layer = lower of x or y
        //layer width = (size-(layer-1)*2)
        //layer area = (size-(layer-1)*2)*4-4
        //go through earlier spirals to get total
        //then remove extra that hasnt been reached yet

        cout << to_string(tArea) << "\n";
    }

}

// Run program: Ctrl + F5 or Debug > Start Without Debugging menu
// Debug program: F5 or Debug > Start Debugging menu

// Tips for Getting Started: 
//   1. Use the Solution Explorer window to add/manage files
//   2. Use the Team Explorer window to connect to source control
//   3. Use the Output window to see build output and other messages
//   4. Use the Error List window to view errors
//   5. Go to Project > Add New Item to create new code files, or Project > Add Existing Item to add existing code files to the project
//   6. In the future, to open this project again, go to File > Open > Project and select the .sln file

Test 1

Group: 1

Verdict: ACCEPTED

Test 2

Group: 2

Verdict: ACCEPTED

Test 3

Group: 3

Verdict: TIME LIMIT EXCEEDED