/in/foo.cc:4:1: error: '__int64' does not name a type
 __int64 x[61],y[61],z[61];
 ^~~~~~~
/in/foo.cc: In function 'int main()':
/in/foo.cc:10:1: error: 'x' was not declared in this scope
 x[3]=1;y[3]=-2;z[3]=2;
 ^
/in/foo.cc:10:8: error: 'y' was not declared in this scope
 x[3]=1;y[3]=-2;z[3]=2;
        ^
/in/foo.cc:10:16: error: 'z' was not declared in this scope
 x[3]=1;y[3]=-2;z[3]=2;
                ^