Compilare: main.cpp: In function 'int main()': main.cpp:52:9: warning: unused variable 'k1' [-Wunused-variable] 52 | int k1=0,k2=0; | ^~ main.cpp:52:14: warning: unused variable 'k2' [-Wunused-variable] 52 | int k1=0,k2=0; | ^~ main.cpp:53:11: warning: unused variable 'st1' [-Wunused-variable] 53 | punct st1[NMAX],st2[NMAX]; | ^~~ main.cpp:53:21: warning: unused variable 'st2' [-Wunused-variable] 53 | punct st1[NMAX],st2[NMAX]; | ^~~