Compilare: main.cpp: In function 'void subsir(int)': main.cpp:23:11: warning: unused variable 'j' [-Wunused-variable] int i,j,k=-1,len=1,poz; ^ main.cpp: In function 'int cb(int, int, double)': main.cpp:19:12: warning: 'elem' may be used uninitialized in this function [-Wmaybe-uninitialized] return elem; ^~~~ main.cpp: In function 'void subsir(int)': main.cpp:34:19: warning: 'elem' may be used uninitialized in this function [-Wmaybe-uninitialized] l[poz]=v[i]; ~~~~~~^~~~~