Compilare: main.c: In function 'main': main.c:23:42: warning: unused variable 'mij' [-Wunused-variable] 23 | int t,n,x,nr,max,vmin,i,xmax,j,k,st,dr,mij; | ^~~ main.c:23:39: warning: unused variable 'dr' [-Wunused-variable] 23 | int t,n,x,nr,max,vmin,i,xmax,j,k,st,dr,mij; | ^~ main.c:23:36: warning: unused variable 'st' [-Wunused-variable] 23 | int t,n,x,nr,max,vmin,i,xmax,j,k,st,dr,mij; | ^~ main.c:23:34: warning: unused variable 'k' [-Wunused-variable] 23 | int t,n,x,nr,max,vmin,i,xmax,j,k,st,dr,mij; | ^ main.c:23:32: warning: unused variable 'j' [-Wunused-variable] 23 | int t,n,x,nr,max,vmin,i,xmax,j,k,st,dr,mij; | ^ main.c:23:27: warning: variable 'xmax' set but not used [-Wunused-but-set-variable] 23 | int t,n,x,nr,max,vmin,i,xmax,j,k,st,dr,mij; | ^~~~