Spiraali

from sys import maxsize

n, t = [int(z) for z in input().split()]

maxsize = 9999999999999999999999999

def val(t, n):
    # TEE TÄSTÄ INTEGER MATIKKAA, HOMMA KUSEE JOS ANS ON FLOAT
    ans = int(1 + 4*(((t-1)*n) - (t-1) * ((1+(1+(2*(t-1)-1))//2))) + (t-1)*4)
    return int(ans)


for i in range(t):
    y, x = [int(z) for z in input().split()]

    mindist = int(min(x, y, n-x+1, n-y+1) - 1)

    if y > x:
        ans = val(mindist + 1, n) + (x - (mindist + 1)) + (y - (mindist + 1))

    elif x > y:
        ans = val(mindist + 1, n) + 2*(n - mindist*2 - 1) + (n - mindist - x) + (n - mindist - y)

    elif x == y:
        if x <= n // 2:
            ans = val(mindist + 1, n)
        else:
            ans = val(mindist + 1, n) + 2 * (n - mindist * 2 - 1)

    print(int(ans))

# print(val(2, 6))

Test 1

Group: 1

Verdict: ACCEPTED

Test 2

Group: 2

Verdict: ACCEPTED

Test 3

Group: 3

Verdict: ACCEPTED