Compilare: user.cpp: In function ‘int main()’: user.cpp:13:53: warning: unused variable ‘sol1’ [-Wunused-variable] int aa[n][n],x[n][42],i,j,b,bb,k=0,v,a,sol[151],sol1[151],aux[151],r,tot,tot1,ok[n],kk; ^ user.cpp:13:78: warning: unused variable ‘tot1’ [-Wunused-variable] int aa[n][n],x[n][42],i,j,b,bb,k=0,v,a,sol[151],sol1[151],aux[151],r,tot,tot1,ok[n],kk; ^ user.cpp:13:89: warning: unused variable ‘kk’ [-Wunused-variable] int aa[n][n],x[n][42],i,j,b,bb,k=0,v,a,sol[151],sol1[151],aux[151],r,tot,tot1,ok[n],kk; ^ user.cpp:37:22: warning: iteration 172u invokes undefined behavior [-Waggressive-loop-optimizations] prim[i]=1; ^ user.cpp:35:5: note: containing loop for(i=2;i<=2000;i++) ^