Compilare: main.cpp: In function 'void rezolva()': main.cpp:49:36: warning: unused variable 'x' [-Wunused-variable] int i,x1,y1,vm,k,x2,y2,xm,ym,v,x,y,va,xa,ya; ^ main.cpp:49:38: warning: unused variable 'y' [-Wunused-variable] int i,x1,y1,vm,k,x2,y2,xm,ym,v,x,y,va,xa,ya; ^ main.cpp:96:22: warning: 'ya' may be used uninitialized in this function [-Wmaybe-uninitialized] fout<<x1<<' '<<y1; ^ main.cpp:96:15: warning: 'xa' may be used uninitialized in this function [-Wmaybe-uninitialized] fout<<x1<<' '<<y1; ^~~