Compilare: main.cpp: In function 'int get_int()': main.cpp:44:28: warning: array subscript has type 'char' [-Wchar-subscripts] 44 | while ( !isDigit[buf[ix]] ) ix ++; | ~~~~~~^ main.cpp:47:29: warning: array subscript has type 'char' [-Wchar-subscripts] 47 | } while ( isDigit[buf[ix]] ); | ~~~~~~^ main.cpp: In function 'void divide(int, int, int, int, int)': main.cpp:36:11: warning: 'splitpoint' may be used uninitialized [-Wmaybe-uninitialized] 36 | divide( i, st, mij - 1, splitl, splitpoint ); | ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:28:32: note: 'splitpoint' was declared here 28 | int mij = ( st + dr ) / 2, splitpoint, l, x; | ^~~~~~~~~~