Compilare: main.cpp: In function 'int main()': main.cpp:55:11: warning: unused variable 'l' [-Wunused-variable] 55 | int i,l,j,k,val,st,dr,mij,retin; | ^ main.cpp:55:13: warning: unused variable 'j' [-Wunused-variable] 55 | int i,l,j,k,val,st,dr,mij,retin; | ^ main.cpp:55:15: warning: unused variable 'k' [-Wunused-variable] 55 | int i,l,j,k,val,st,dr,mij,retin; | ^ main.cpp:55:17: warning: unused variable 'val' [-Wunused-variable] 55 | int i,l,j,k,val,st,dr,mij,retin; | ^~~ main.cpp:55:21: warning: unused variable 'st' [-Wunused-variable] 55 | int i,l,j,k,val,st,dr,mij,retin; | ^~ main.cpp:55:24: warning: unused variable 'dr' [-Wunused-variable] 55 | int i,l,j,k,val,st,dr,mij,retin; | ^~ main.cpp:55:27: warning: unused variable 'mij' [-Wunused-variable] 55 | int i,l,j,k,val,st,dr,mij,retin; | ^~~