Compilare: user.cpp: In function ‘int main()’: user.cpp:12:12: warning: suggest parentheses around assignment used as truth value [-Wparentheses] if (p=1) ^ user.cpp:16:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (l<(strlen(s)-1)) ^ user.cpp:18:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while ((i<strlen(s)-1)&&(ok==1)) ^ user.cpp:10:13: warning: unused variable ‘j’ [-Wunused-variable] int p,i,j,k,m=0,l=2,ok; i=l; ^