Compilare: user.cpp: In function ‘int verif(char*, long int, long int)’: user.cpp:23:16: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if (k==0) ^ user.cpp:30:16: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if (k==0) ^ user.cpp:40:13: warning: ‘b[1]’ may be used uninitialized in this function [-Wmaybe-uninitialized] sum=b[1]; ^ user.cpp:27:43: warning: ‘j’ may be used uninitialized in this function [-Wmaybe-uninitialized] b[++u]=verif(s,j+1,i-1); ^