Buggy python submission (verdict: Runtime Error):
I=input
n=int
for i in range(n(input())):
  I();t=[];x=0
  for i,j in zip(map(n,I().split()[::-1]),I()[::-1]):
    [i^=k*(i^k<i)for k in t];j=n(j);t+=[i*(j^1)];x|=(i>0)&j
  print(x)

Fixed submission:
#一次独立：rankが成分数
import numpy as np
#0-indexed,MSBがma以下の時
def msb(x,ma=59):
    for i in range(ma,-1,-1):
        if (x>>i)&1:
            return i
    return len()
t=int(input())
for _ in range(t):
    n=int(input())
    a=list(map(int,input().split()))
    s=input()
    #独立、msb同じものはない
    #逆に異なれば独立
    msbs=[0 for i in range(60)]
    for i in range(n-1,-1,-1):
        now=a[i]
        m=59
        #独立のときfはTrue、独立でない時fはFalse
        while True:
            m=msb(now,m)
            if msbs[m]==0:
                f=True
                break
            now=msbs[m]^now
            if now==0:
                f=False
                break
        if s[i]=="0":
            if f:
                msbs[m]=now
        else:
            if f:
                print(1)
                break
    else:
        print(0)

Buggy python submission (verdict: Runtime Error):
t=int(input())
for _ in range(t):
    n=int(input())
    a=list(map(int,input().split()))
    s=input()
    b=[]
    for i in range(n)[::-1]:
        for e in b:
            a[i]=min(a[i],a[i]^e)
        if a[i]:
            if s[i]=="0":
                b+=a[i]
            else:
                print(1)
                break
    else:
        print(0)

Fixed submission:
#一次独立：rankが成分数
import numpy as np
#0-indexed,MSBがma以下の時
def msb(x,ma=59):
    for i in range(ma,-1,-1):
        if (x>>i)&1:
            return i
    return len()
t=int(input())
for _ in range(t):
    n=int(input())
    a=list(map(int,input().split()))
    s=input()
    #独立、msb同じものはない
    #逆に異なれば独立
    msbs=[0 for i in range(60)]
    for i in range(n-1,-1,-1):
        now=a[i]
        m=59
        #独立のときfはTrue、独立でない時fはFalse
        while True:
            m=msb(now,m)
            if msbs[m]==0:
                f=True
                break
            now=msbs[m]^now
            if now==0:
                f=False
                break
        if s[i]=="0":
            if f:
                msbs[m]=now
        else:
            if f:
                print(1)
                break
    else:
        print(0)

Buggy python submission (verdict: Runtime Error):
import numpy as np
t=int(input())
for _ in range(t):
    n=int(input())
    a=list(map(int,input().split()))
    s=input()
    matrix=np.zeros((60,1))
    for i in range(n-1,-1,-1):
        ne=np.array([(a[i]>>j)&1 for j in range(60)])
        matrix=np.c_[matrix,ne]
        col=matrix.shape[1]
        ra=np.linalg.matrix_rank(matrix)
        if s[i]=="0":
            if col!=ra+1:
                matrix=np.delete(matrix,col-1,1)
        else:
            if col==ra+1:
                print(1)
                break
    else:
        print(0)

Fixed submission:
#一次独立：rankが成分数
import numpy as np
#0-indexed,MSBがma以下の時
def msb(x,ma=59):
    for i in range(ma,-1,-1):
        if (x>>i)&1:
            return i
    return len()
t=int(input())
for _ in range(t):
    n=int(input())
    a=list(map(int,input().split()))
    s=input()
    #独立、msb同じものはない
    #逆に異なれば独立
    msbs=[0 for i in range(60)]
    for i in range(n-1,-1,-1):
        now=a[i]
        m=59
        #独立のときfはTrue、独立でない時fはFalse
        while True:
            m=msb(now,m)
            if msbs[m]==0:
                f=True
                break
            now=msbs[m]^now
            if now==0:
                f=False
                break
        if s[i]=="0":
            if f:
                msbs[m]=now
        else:
            if f:
                print(1)
                break
    else:
        print(0)

Buggy python submission (verdict: Time Limit Exceeded):
import numpy as np
t=int(input())
for _ in range(t):
    n=int(input())
    a=list(map(int,input().split()))
    s=input()
    matrix=np.zeros((60,1))
    for i in range(n-1,-1,-1):
        ne=np.array([(a[i]>>j)&1 for j in range(60)])
        matrix=np.c_[matrix,ne]
        col=matrix.shape[1]
        ra=np.linalg.matrix_rank(matrix)
        if s[i]=="0":
            if col!=ra+1:
                matrix=np.delete(matrix,col-1,1)
        else:
            if col==ra+1:
                print(1)
                break
    else:
        print(0)

Fixed submission:
#一次独立：rankが成分数
import numpy as np
#0-indexed,MSBがma以下の時
def msb(x,ma=59):
    for i in range(ma,-1,-1):
        if (x>>i)&1:
            return i
    return len()
t=int(input())
for _ in range(t):
    n=int(input())
    a=list(map(int,input().split()))
    s=input()
    #独立、msb同じものはない
    #逆に異なれば独立
    msbs=[0 for i in range(60)]
    for i in range(n-1,-1,-1):
        now=a[i]
        m=59
        #独立のときfはTrue、独立でない時fはFalse
        while True:
            m=msb(now,m)
            if msbs[m]==0:
                f=True
                break
            now=msbs[m]^now
            if now==0:
                f=False
                break
        if s[i]=="0":
            if f:
                msbs[m]=now
        else:
            if f:
                print(1)
                break
    else:
        print(0)

Buggy python submission (verdict: Runtime Error):
import numpy as np
t=int(input())
for _ in range(t):
    n=int(input())
    a=list(map(int,input().split()))
    s=input()
    matrix=np.zeros((60,1))
    for i in range(n-1,-1,-1):
        ne=np.array([(a[i]>>j)&1 for j in range(60)])
        matrix=np.c_[matrix,ne]
        col=matrix.shape[1]
        ra=np.linalg.matrix_rank(matrix) 
        if s[i]=="0":
            if col!=ra+1:
                matrix=np.delete(matrix,col,1)
        else:
            if col==ra+1:
                print(1)
                break
    else:
        print(0)

Fixed submission:
#一次独立：rankが成分数
import numpy as np
#0-indexed,MSBがma以下の時
def msb(x,ma=59):
    for i in range(ma,-1,-1):
        if (x>>i)&1:
            return i
    return len()
t=int(input())
for _ in range(t):
    n=int(input())
    a=list(map(int,input().split()))
    s=input()
    #独立、msb同じものはない
    #逆に異なれば独立
    msbs=[0 for i in range(60)]
    for i in range(n-1,-1,-1):
        now=a[i]
        m=59
        #独立のときfはTrue、独立でない時fはFalse
        while True:
            m=msb(now,m)
            if msbs[m]==0:
                f=True
                break
            now=msbs[m]^now
            if now==0:
                f=False
                break
        if s[i]=="0":
            if f:
                msbs[m]=now
        else:
            if f:
                print(1)
                break
    else:
        print(0)

Buggy python submission (verdict: Time Limit Exceeded):
t=int(input())
for _ in range(t):
    n=int(input())
    a=list(map(int,input().split()))
    s=input()
    dp=[set() for i in range(n+1)]
    dp[n]={0}
    for i in range(n,0,-1):
        if s[i-1]=="0":
            for j in dp[i]:
                dp[i-1].add(j)
                dp[i-1].add(j^a[i-1])
        else:
            if a[i-1] in dp[i]:
                for j in dp[i]:
                    dp[i-1].add(j)
            else:
                print(1)
                break
    else:
        print(0)





Fixed submission:
#一次独立：rankが成分数
import numpy as np
#0-indexed,MSBがma以下の時
def msb(x,ma=59):
    for i in range(ma,-1,-1):
        if (x>>i)&1:
            return i
    return len()
t=int(input())
for _ in range(t):
    n=int(input())
    a=list(map(int,input().split()))
    s=input()
    #独立、msb同じものはない
    #逆に異なれば独立
    msbs=[0 for i in range(60)]
    for i in range(n-1,-1,-1):
        now=a[i]
        m=59
        #独立のときfはTrue、独立でない時fはFalse
        while True:
            m=msb(now,m)
            if msbs[m]==0:
                f=True
                break
            now=msbs[m]^now
            if now==0:
                f=False
                break
        if s[i]=="0":
            if f:
                msbs[m]=now
        else:
            if f:
                print(1)
                break
    else:
        print(0)