Compilare: user.cpp: In function ‘int main()’: user.cpp:20:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0;j<s.size();j++) ^ user.cpp:62:30: warning: ‘poz’ may be used uninitialized in this function [-Wmaybe-uninitialized] for(j=1;j<=m[poz][0];j++) ^ user.cpp:57:17: warning: ‘q’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(q==t || cont>1) ^ user.cpp:57:17: warning: ‘t’ may be used uninitialized in this function [-Wmaybe-uninitialized]