Compilare: main.cpp: In function 'int main()': main.cpp:20:26: warning: unused variable 'nr' [-Wunused-variable] 20 | int c,i, j, n, m,t,l,nr,nr2,k,x=1,y=1,res=1; | ^~ main.cpp:20:29: warning: unused variable 'nr2' [-Wunused-variable] 20 | int c,i, j, n, m,t,l,nr,nr2,k,x=1,y=1,res=1; | ^~~ main.cpp:20:33: warning: unused variable 'k' [-Wunused-variable] 20 | int c,i, j, n, m,t,l,nr,nr2,k,x=1,y=1,res=1; | ^ main.cpp:20:35: warning: unused variable 'x' [-Wunused-variable] 20 | int c,i, j, n, m,t,l,nr,nr2,k,x=1,y=1,res=1; | ^ main.cpp:20:39: warning: unused variable 'y' [-Wunused-variable] 20 | int c,i, j, n, m,t,l,nr,nr2,k,x=1,y=1,res=1; | ^