Compilare: main.cpp: In function 'int main()': main.cpp:50:19: warning: unused variable 'val' [-Wunused-variable] int n, i, s = 0, val; ^~~ main.cpp:52:16: warning: 'n' is used uninitialized in this function [-Wuninitialized] for (i = 1; i <= n; ++i) ~~^~~~ main.cpp: In function 'int bsL(int, int)': main.cpp:45:12: warning: 'last' may be used uninitialized in this function [-Wmaybe-uninitialized] return last; ^~~~