279A - Point on Spiral - CodeForces Solution

brute force geometry implementation *1400

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Python Code: 

x,y = map(int,input().split())
if y>x and x>=-y: print(y*4-2)
elif y<x and x<=-y+1: print(-y*4)
elif y<=x and x>-y+1: print(x*4-3)
elif y>=x and x<-y: print(-1-4*x)
else: print(0)

C++ Code: 

#include "bits/stdc++.h"

using namespace std;

int main() {
    int x, y;
    cin >> x >> y;
    if (x == 0 && y == 0) {
        cout << 0 << '\n';
    } else if (-x + 1 < y && y <= x) {
        cout << 1 + (x - 1) * 4 << '\n';
    } else if (-y <= x && x < y) {
        cout << 2 + (y - 1) * 4 << '\n';
    } else if (x <= y && y < -x) {
        cout << 3 + (-x - 1) * 4 << '\n';
    } else {
        cout << 4 + (-y - 1) * 4 << '\n';
    }

    return 0;
}


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