The code is not passing test cases

#1

i have written the code which is not passing any test cases.but sample test case is passed.Please tell me error

#2

your code is not giving output according to question’s requirement
for input
4
3 4 2 1
correct output is
1 2 3 4
but your output is
1
2
3
4

your output should be exactly according to question

make one small change after that your code pass all testcase
instead of endl give some space
for(i=0;i<n;i++)
cout<<ar[i]<<" ";

i hope this help
if you have more doubts regarding this feel free to ask
if your doubt is resolved mark it as resolved from your doubt section inside your course

#3

we are reaching the index -1 at the termination o while loop.Is there any way by which we can avoid it

#4

According to your code this will happen

You can manage it after completion while loop