I am a beginner on codeforces so don't know how to tackle this issue. https://codeforces.com/contest/356/submission/122771867 is the link to my submission for problem https://codeforces.com/contest/356/problem/A.
This gives a runtime error on test case 11. The checker LOG gives the following message: "Exit code is -1073741819" along with the message "Probably, the solution is executed with error 'out of bounds' on the line 8". Please tell me how to rectify this issue.
Most likely you are not assigning enough memory space in the declaration of tree array. To see this try n=6. You require an array of size atleast 13 but you are only allocating size 11. There is no harm in allocating a bit more space than you actually need, just allocate space twice of the smallest power of 2 that is larger than or equal to n, and out of bounds should be solved.