Getting (SIGSEGV) in basic segment tree question can't figure out why?

link of the problem : - Problem GSS1
link to my solution : Ne2UYo - Online C++0x Compiler & Debugging Tool -

Compiling bhpra-blah.cpp
+ g++ -std=c++14 bhpra-blah.cpp -O3 -g3 -Wall -Wextra -Wconversion -DONLINE_JUDGE -D_GLIBCXX_DEBUG -fsanitize=undefined -ftrapv
bhpra-blah.cpp: In function β€˜int buildTree(int, int*, int*, int, int)’:
bhpra-blah.cpp:17:20: warning: control reaches end of non-void function [-Wreturn-type]
     segmentTree[v] = max(left,right);
+ set +x
[~/devel/hackerrank/otherpeoples]>echo "3 
> -1 2 3
> 1
> 1 2" | ./a.out
bhpra-blah.cpp:3:5: runtime error: execution reached the end of a value-returning function without returning a value
1 Like

thanyou so much i got it also can you tell me how to debug like this

All the information you need is in that post :slight_smile: