Compilare: user.cpp: In function ‘int main()’: user.cpp:79:53: warning: ‘y’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(a[ x+dx[d] ][ y+dy[d] ] + 1 == a[x][y] and mat[ x+dx[d] ][ y+dy[d] ] + 1 == mat[x][y]) ^ user.cpp:79:53: warning: ‘x’ may be used uninitialized in this function [-Wmaybe-uninitialized]