Buggy python submission (verdict: Time Limit Exceeded):
N = int(input())
a = list(map(int,input().split()))
s = [0] * 30
t = [1] * 30
for i in range(29):
    t[i + 1] = t[i] * 2
for i in range(N):
    aa = a[i]
    for j in range(30):
        s[j] = (s[j] + aa)%2
        aa = aa//2
for i in range(N):
    ans = a[i]
    b = a[i]
    for j in range(30):
        ans1 = b%2
        b = b//2
        if s[j] == 1:
            if ans1 == 1:
                ans -= t[j] 
            else:
                ans += t[j]
    print(ans,end = " ")
print()

Fixed submission:
N = int(input())
a = list(map(int,input().split()))
s = [0] * 30
t = [1] * 30
for i in range(29):
    t[i + 1] = t[i] * 2
ss = a[0]
for j in range(N - 1):
    ss = ss ^ a[j + 1]
for j in range(N):
    print(a[j] ^ ss,end = " ")
print()

Buggy python submission (verdict: Time Limit Exceeded):
N = int(input())
a = list(map(int,input().split()))
s = [0] * 30
t = [1] * 30
for i in range(29):
    t[i + 1] = t[i] * 2
for i in range(N):
    aa = a[i]
    for j in range(30):
        s[j] = (s[j] + aa)%2
        aa = aa//2
for i in range(N):
    ans = a[i]
    for j in range(30):
        ans1 = a[i]%2
        a[i] = a[i]//2
        if s[j] == 1:
            if ans1 == 1:
                ans -= t[j] 
            else:
                ans += t[j]
    print(ans,end = " ")
print()

Fixed submission:
N = int(input())
a = list(map(int,input().split()))
s = [0] * 30
t = [1] * 30
for i in range(29):
    t[i + 1] = t[i] * 2
ss = a[0]
for j in range(N - 1):
    ss = ss ^ a[j + 1]
for j in range(N):
    print(a[j] ^ ss,end = " ")
print()

Buggy python submission (verdict: Time Limit Exceeded):
N = int(input())
a = list(map(int,input().split()))
s = [0] * 30
t = [1] * 30
for i in range(29):
    t[i + 1] = t[i] * 2
for i in range(N):
    aa = a[i]
    for j in range(30):
        if aa == 0:
            break
        s[j] += aa%2
        aa = aa//2
for i in range(30):
    s[i] = s[i]%2
for i in range(N):
    ans1 = [0] * 30
    ans = a[i]
    for j in range(30):
        ans1[j] = a[i]%2
        a[i] = a[i]//2
        if s[j] == 1:
            if ans1[j] == 1:
                ans -= t[j] 
            else:
                ans += t[j]
    print(ans,end = " ")
print()

Fixed submission:
N = int(input())
a = list(map(int,input().split()))
s = [0] * 30
t = [1] * 30
for i in range(29):
    t[i + 1] = t[i] * 2
ss = a[0]
for j in range(N - 1):
    ss = ss ^ a[j + 1]
for j in range(N):
    print(a[j] ^ ss,end = " ")
print()

Buggy python submission (verdict: Time Limit Exceeded):
N = int(input())
a = list(map(int,input().split()))
s = [0] * 30
t = [1] * 30
for i in range(29):
    t[i + 1] *= t[i] * 2
for i in range(N):
    aa = a[i]
    for j in range(30):
        if aa == 0:
            break
        s[j] += aa%2
        aa = aa//2
for i in range(30):
    s[i] = s[i]%2
for i in range(N):
    ans1 = [0] * 30
    for j in range(30):
        ans1[j] = a[i]%2
        a[i] = a[i]//2
        if s[j] == 1:
            ans1[j] = (ans1[j] + 1)%2
    ans = 0
    for j in range(30):
        ans += ans1[j]*t[j]
    print(ans,end = " ")
print()

Fixed submission:
N = int(input())
a = list(map(int,input().split()))
s = [0] * 30
t = [1] * 30
for i in range(29):
    t[i + 1] = t[i] * 2
ss = a[0]
for j in range(N - 1):
    ss = ss ^ a[j + 1]
for j in range(N):
    print(a[j] ^ ss,end = " ")
print()

Buggy python submission (verdict: Time Limit Exceeded):
N = int(input())
a = list(map(int,input().split()))
b = [0] * N
for i in range(N):
    b[i] = a[i]
s = [0] * 30
t = [0] * 30
for i in range(N):
    for j in range(30):
        if a[i] == 0:
            break
        s[j] += a[i]%2
        a[i] = a[i]//2
for i in range(30):
    s[i] = s[i]%2
for i in range(N):
    ans1 = [0] * 30
    for j in range(30):
        ans1[j] = b[i]%2
        b[i] = b[i]//2
        if s[j] == 1:
            ans1[j] = (ans1[j] + 1)%2
    ans = 0
    for j in range(30):
        ans += ans1[j]*(2**j)
    print(ans,end = " ")
print()

Fixed submission:
N = int(input())
a = list(map(int,input().split()))
s = [0] * 30
t = [1] * 30
for i in range(29):
    t[i + 1] = t[i] * 2
ss = a[0]
for j in range(N - 1):
    ss = ss ^ a[j + 1]
for j in range(N):
    print(a[j] ^ ss,end = " ")
print()