Buggy python submission (verdict: Runtime Error):
import sys
stdin = sys.stdin
sys.setrecursionlimit(10**6)
ni = lambda: int(ns())
na = lambda: list(map(int, stdin.readline().split()))
nn = lambda: list(stdin.readline().split())
ns = lambda: stdin.readline().rstrip()

n = ni()
a = sorted(na())
x = [[0]*n for _ in range(30)]
 
if n%3:
    if max(a):
        print("No")
    else:
        print("Yes")
else:
    m = n//3
    if A[0] == A[m-1] and A[m] == A[2*m-1] and A[2*m] == A[3*m-1] and A[0]^A[m] == A[2*m]:
        print("Yes")
    else:
        print("No")

Fixed submission:
import sys
stdin = sys.stdin
sys.setrecursionlimit(10**6)
ni = lambda: int(ns())
na = lambda: list(map(int, stdin.readline().split()))
nn = lambda: list(stdin.readline().split())
ns = lambda: stdin.readline().rstrip()

n = ni()
a = sorted(na())
x = [[0]*n for _ in range(30)]
 
if n%3:
    if max(a):
        print("No")
    else:
        print("Yes")
else:
    m = n//3
    if a[0] == a[m-1] and a[m] == a[2*m-1] and a[2*m] == a[3*m-1] and a[0]^a[m] == a[2*m]:
        print("Yes")
    else:
        print("No")

Buggy python submission (verdict: Runtime Error):
import sys
stdin = sys.stdin
sys.setrecursionlimit(10**9)
ni = lambda: int(ns())
na = lambda: list(map(int, stdin.readline().split()))
nn = lambda: list(stdin.readline().split())
ns = lambda: stdin.readline().rstrip()

n = ni()
a = na()

if n%2 == 0:
	print(['No','Yes'][all([e == a[0] for e in a[1:] and a[0] == 0])])
else:
	a = sorted(a)
	b = [a[0]]
	for i in range(1,n):
		b.append(a[0]^a[i])
	b = sorted(b)
	c = a[-1::-1]
	d = [c[0]]
	for i in range(1,n):
		d.append(c[0]^c[i])
	c = sorted(c)
	d = sorted(d)
	print(['No','Yes'][a==b and c==d])


Fixed submission:
import sys
stdin = sys.stdin
sys.setrecursionlimit(10**6)
ni = lambda: int(ns())
na = lambda: list(map(int, stdin.readline().split()))
nn = lambda: list(stdin.readline().split())
ns = lambda: stdin.readline().rstrip()

n = ni()
a = sorted(na())
x = [[0]*n for _ in range(30)]
 
if n%3:
    if max(a):
        print("No")
    else:
        print("Yes")
else:
    m = n//3
    if a[0] == a[m-1] and a[m] == a[2*m-1] and a[2*m] == a[3*m-1] and a[0]^a[m] == a[2*m]:
        print("Yes")
    else:
        print("No")

Buggy python submission (verdict: Runtime Error):
import sys
stdin = sys.stdin
sys.setrecursionlimit(10**9)
ni = lambda: int(ns())
na = lambda: list(map(int, stdin.readline().split()))
nn = lambda: list(stdin.readline().split())
ns = lambda: stdin.readline().rstrip()

n = ni()
a = na()

if n%2 == 0:
	print(['No','Yes'][all([e == a[0] for e in a[1:] and a[0] == 0])])
else:
	a = sorted(a)
	b = [a[0]]
	for i in range(1,n):
		b.append(a[0]^a[i])
	b = sorted(b)
	
    c = a[-1::-1]
	d = [c[0]]
	for i in range(1,n):
		d.append(c[0]^c[i])
	c = sorted(c)
	d = sorted(d)
	print(['No','Yes'][a==b and c==d])


Fixed submission:
import sys
stdin = sys.stdin
sys.setrecursionlimit(10**6)
ni = lambda: int(ns())
na = lambda: list(map(int, stdin.readline().split()))
nn = lambda: list(stdin.readline().split())
ns = lambda: stdin.readline().rstrip()

n = ni()
a = sorted(na())
x = [[0]*n for _ in range(30)]
 
if n%3:
    if max(a):
        print("No")
    else:
        print("Yes")
else:
    m = n//3
    if a[0] == a[m-1] and a[m] == a[2*m-1] and a[2*m] == a[3*m-1] and a[0]^a[m] == a[2*m]:
        print("Yes")
    else:
        print("No")