Compilare: main.cpp: In function 'void solve(int)': main.cpp:12:27: warning: operation on 'poz' may be undefined [-Wsequence-point] tris[poz][x]=tris[++poz][x]=tris[poz++][x+1]=p++, d--; ^~~~~ main.cpp:16:17: warning: operation on 'poz' may be undefined [-Wsequence-point] tris[poz++][x]=tris[poz++][x]=p++, b--; ~~~^~ main.cpp:19:30: warning: operation on 'poz' may be undefined [-Wsequence-point] tris[poz++][x]=tris[poz++][x]=tris[poz++][x]=p++, c--; ~~~^~