Compilare: main.cpp: In function 'int main()': main.cpp:14:11: warning: unused variable 'j' [-Wunused-variable] 14 | int i,j,l,st,dr,k,ans=0; | ^ main.cpp:14:13: warning: unused variable 'l' [-Wunused-variable] 14 | int i,j,l,st,dr,k,ans=0; | ^ main.cpp:14:15: warning: unused variable 'st' [-Wunused-variable] 14 | int i,j,l,st,dr,k,ans=0; | ^~ main.cpp:14:18: warning: unused variable 'dr' [-Wunused-variable] 14 | int i,j,l,st,dr,k,ans=0; | ^~ main.cpp:14:21: warning: unused variable 'k' [-Wunused-variable] 14 | int i,j,l,st,dr,k,ans=0; | ^