Compilare: user.cpp: In function ‘int main()’: user.cpp:27:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i <= v.size()-1; i++) { ^ user.cpp:40:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i <= v.size()-1; i++) { ^ user.cpp:31:18: warning: ‘mx’ may be used uninitialized in this function [-Wmaybe-uninitialized] else if (mx < s) { ^ user.cpp:39:30: warning: ‘last’ may be used uninitialized in this function [-Wmaybe-uninitialized] blanking(first, last); ^ user.cpp:39:30: warning: ‘first’ may be used uninitialized in this function [-Wmaybe-uninitialized]