View Compilation Error

0_0_15807885_12720.c:5:5: error: expected specifier-qualifier-list before 'Point3'
     Point3(int x = 0, int y = 0, int z = 0) : x(x), y(y), z(z) {}
     ^
0_0_15807885_12720.c: In function 'solve':
0_0_15807885_12720.c:22:13: error: 'struct Point3' has no member named 'read'
         p[i].read();
             ^
0_0_15807885_12720.c:26:31: error: 'struct Point3' has no member named 'dis2'
             dis2[cnt++] = p[i].dis2(p[j]);
                               ^