Compilare: main.cpp:2:0: warning: ignoring #pragma GCC optimization [-Wunknown-pragmas] # pragma GCC optimization ("unroll-loops") main.cpp: In function 'int bs(int, int, int)': main.cpp:28:9: warning: 'ans' may be used uninitialized in this function [-Wmaybe-uninitialized] return ans; ^~~ main.cpp: In function 'int32_t main()': main.cpp:48:15: warning: 'ans' may be used uninitialized in this function [-Wmaybe-uninitialized] pos[i]=ind[x-1]; ~^~