challenging to find error!!

Question

i recently tried a challenge in java on other website which is seen in this link
https://code.dcoder.tech/challenges/5b65902d4bc1dd1052db25d4/stack-stack-stack
i tried this problem and at last made this code
https://code.sololearn.com/coq9E2a3SQGk/#java
but this code doesnt pass in a test case please can anybody suggest what is going wrong
here

Answer 1

Change your if blocks to if else if blocks. If 1 condition is true we know the other 2 are false. No reason to test them all for each iteration of the loop.

Then change your pop loop to loop until the stack is empty as the size will change as you pop items from the stack.

while (!stack.empty()) {
sum+=stack.pop();
}

Answer 2

ChaoticDawg Jayakrishna🇮🇳 thanks for the reply it works well I liked it

Answer 3

In last loop, use < instead of <=

for(int i=0; i<stack.size(); i++)