Compilare: main.cpp: In function 'int main()': main.cpp:169:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0;j<lista[i].size();j++) ~^~~~~~~~~~~~~~~~ main.cpp:171:33: warning: unused variable 'x' [-Wunused-variable] int poz=lista[i][j],x,y,z,nr; ^ main.cpp:171:35: warning: unused variable 'y' [-Wunused-variable] int poz=lista[i][j],x,y,z,nr; ^ main.cpp:171:37: warning: unused variable 'z' [-Wunused-variable] int poz=lista[i][j],x,y,z,nr; ^