Spiraali

inn = input().split(' ')
n = int(inn[0])
t = int(inn[1])
 
summat = []
last = n
 
for i in range(n//2):
    p = last+last-1+last-1+last-2
 
    if len(summat) > 0:
        p = summat[i-1]+p
 
    summat.append(p)
    last -= 2
 
summat=[0]+summat
 
for _ in range(t):
    inn = input().split(' ')
    y = int(inn[0])
    x = int(inn[1])
 
    nth = min(y, x)
 
    up = y-1
    bottom = n-y
    left = x-1
    right = n-x
 
    mins = min(up, bottom, left, right)
    nth = mins + 1
 
    result = summat[mins]
    last = n-(2*mins)
 
    if mins == left:
        print(result+(y-nth)+1)
        continue
 
    result += last
 
    if mins == bottom:
        print(result+(x-nth))
        continue
 
    result += last-1
 
    if mins == right:
        print(result+n-y-mins)
        continue
 
    result += last-1
 
    if mins == up:
        print(result+(n-x)-mins)
        continue

Test 1

Group: 1

Verdict: ACCEPTED

Test 2

Group: 2

Verdict: ACCEPTED

Test 3

Group: 3

Verdict: TIME LIMIT EXCEEDED