I am not able to solve this question. Can anyone explain me the best solution this question using vectors, pairs, stacks, queues, linked list ?

Give me one test case that fails the below code… I have run it almost over more than 50 test cases… but it still gives wrong answer… And the logic is exactly the same as that in the video…

def check_winner(a_count, b_count, a_attempt, b_attempt):

tintin_winner = False

if (a_count - b_count > b_attempt):

tintin_winner = True

if (b_count - a_count > a_attempt):

tintin_winner = True

```
return tintin_winner
```

try:

t = int(input())

if t >=1 and t <= 100:

while(t):

n = int(input())

score_tally = input()

# print(score_tally)

a_team_score = score_tally[::2]

b_team_score = score_tally[1::2]

# print(a_team_score)

# print(b_team_score)

```
max_moves = 0
if(a_team_score == b_team_score):
max_moves = 2*n
else:
#calculate the no. of 1s in team A
team_a_1_count = 0
team_b_1_count = 0
no_of_team_a_attempt = n
no_of_team_b_attempt = n
total_attempts = 0
for i in range(0,n):
total_attempts += 1
no_of_team_a_attempt -= 1
if(a_team_score[i] == "1"):
team_a_1_count += 1
if(check_winner(team_a_1_count,team_b_1_count,no_of_team_a_attempt,no_of_team_b_attempt)):
max_moves = total_attempts
break
total_attempts += 1
no_of_team_b_attempt -= 1
if(b_team_score[i] == "1"):
team_b_1_count += 1
if(check_winner(team_a_1_count,team_b_1_count,no_of_team_a_attempt,no_of_team_b_attempt)):
max_moves = total_attempts
break
if max_moves == 0:
max_moves = 2*n
print(max_moves)
t -= 1
```

except EOFError:

pass