Sir, I passed in all test cases except one test case. Please help me to correct my code

#1
#2

hello @chandreshmaurya

#3

Sir, isme maine ans_left ko initialise nhi kiya tha. but, ans_left ko hamesha left se update kr rha tha. Ye kaise galat ho gya ?

#4

try
1 0
0
test case without intailising ans