Compilare: user.cpp: In function ‘int readint()’: user.cpp:42:73: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(buffer[pos]!=' ' && buffer[pos]!='\n' && pos<lSize*sizeof(char)) ^ user.cpp:51:57: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(!isdigit(buffer[pos]) && pos<lSize*sizeof(char)) ++pos; ^ user.cpp: In function ‘void solve()’: user.cpp:72:9: warning: ‘ma’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(m[a[i]]>ma) ^