Compilare: main.cpp: In function 'int main()': main.cpp:43:9: warning: unused variable 'pred' [-Wunused-variable] int pred = 2000000001, m = k; ^~~~ main.cpp:43:28: warning: unused variable 'm' [-Wunused-variable] int pred = 2000000001, m = k; ^ main.cpp: In function 'int BinarySearch(int)': main.cpp:27:14: warning: 'pos' may be used uninitialized in this function [-Wmaybe-uninitialized] lis[pos] = val; ~~~~~~~~~^~~~~ main.cpp: In function 'int main()': main.cpp:27:14: warning: 'pos' may be used uninitialized in this function [-Wmaybe-uninitialized] lis[pos] = val; ~~~~~~~~~^~~~~ main.cpp:15:35: note: 'pos' was declared here int left = 1, right = k, mid, pos; ^~~