Compilare: main.cpp: In function 'int main()': main.cpp:68:13: warning: unused variable 'cc' [-Wunused-variable] int cc; ^~ main.cpp:30:34: warning: unused variable 'k3' [-Wunused-variable] int i,j,i1,i2,i3,ok,j1,k1,k2,k3,k4,p; ^~ main.cpp:30:37: warning: unused variable 'k4' [-Wunused-variable] int i,j,i1,i2,i3,ok,j1,k1,k2,k3,k4,p; ^~ main.cpp:64:16: warning: 's' may be used uninitialized in this function [-Wmaybe-uninitialized] fout<<s; ^