Compilare: user.cpp: In function ‘void delete_st(int)’: user.cpp:27:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0;j<v[i].size();) ^ user.cpp: In function ‘void out(int, int)’: user.cpp:76:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0;i< v[XD].size();i++) ^ user.cpp: In function ‘void verif1(int, int, int, int)’: user.cpp:94:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0;i< v[X].size();i++) ^ user.cpp:109:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0;i< v[XD].size();i++) ^ user.cpp: In function ‘void verif2(int, int, int, int)’: user.cpp:129:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0;i< v[X].size();i++) ^ user.cpp:144:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0;i< v[XD].size();i++) ^ user.cpp: In function ‘void verif3(int, int, int, int, int, int)’: user.cpp:167:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0;i< v[X].size();i++) ^ user.cpp:182:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0;i< v[XD].size();i++) ^ user.cpp: In function ‘int main()’: user.cpp:268:40: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0;i< v[X].size();i++) ^