Compilare: user.cpp: In function ‘void salt()’: user.cpp:13:117: warning: array subscript is above array bounds [-Warray-bounds] minim=20000000;z[1]=a[x-1][y];w[1]=v[x-1][y];z[2]=a[x][y+1];w[2]=v[x][y+1];z[3]=a[x+1][y];w[3]=v[x+1][y];z[4]=a[x][y-1];w[4]=v[x][y-1]; ^ user.cpp:13:132: warning: array subscript is above array bounds [-Warray-bounds] minim=20000000;z[1]=a[x-1][y];w[1]=v[x-1][y];z[2]=a[x][y+1];w[2]=v[x][y+1];z[3]=a[x+1][y];w[3]=v[x+1][y];z[4]=a[x][y-1];w[4]=v[x][y-1]; ^ cc1plus: warning: iteration 2u invokes undefined behavior [-Waggressive-loop-optimizations] user.cpp:14:9: note: containing loop for(d=1;d<=4;d++) ^