Самая далёкая планета

def find_farthest_orbit(list_of_orbits):
    s = []
    for i in list_of_orbits:
        a, b = i
        s.append(3.14 * a * b)
    return list_of_orbits[s.index(max(s))]

if a==b:
    a,b=0,0

orbits = [(1, 3), (2.5, 10), (7, 2), (6, 6), (4, 3)]
d=max(a*b for a,b in orbits if a!=b)
s=[(a,b) for a,b in orbits if a*b==d]
print(s[0])

orbits = [(1, 3), (2.5, 10), (7, 2), (6, 6), (4, 3)]
print(*max(orbits, key=lambda x: (x[0] != x[1]) * x[0] * x[1]))

def find_farthest_orbit(list_of_orbits):
    return list(filter(lambda a: a[0] * a[1] * PI == max(
        list(map(lambda a: PI * a[0] * a[1], [(i, j) for i, j in list_of_orbits if i != j]))),
                       [(i, j) for i, j in list_of_orbits if i != j]))[0][0], list(
        filter(lambda a: a[0] * a[1] * PI == max(
            list(map(lambda a: PI * a[0] * a[1], [(i, j) for i, j in list_of_orbits if i != j]))),
               [(i, j) for i, j in list_of_orbits if i != j]))[0][1]

import math
 
 
def find_farthest_orbit(list_of_orbits):
    def area(orbit):
        a, b = orbit
        return math.pi * a * b if a != b else 0
 
    return max(list_of_orbits, key=area)

from math import prod
def find_farthest_orbit(orbits_):
    return max(((a,b) for a,b in orbits_ if a != b), key=prod)
 
orbits = [(1, 3), (2.5, 10), (7, 2), (6, 6), (4, 3)]
print(*find_farthest_orbit(orbits))
# 2.5 10