View Compilation Error

0_0_5364337_23380\Main.java:5: cannot find symbol
symbol  : variable in
location: class Main
    for(int t=in.nextInt(); t>0; --t) {
              ^
0_0_5364337_23380\Main.java:6: cannot find symbol
symbol  : variable in
location: class Main
      int n = in.nextInt();
              ^
0_0_5364337_23380\Main.java:11: incompatible types
found   : int
required: boolean
          if(y&1) continue;
              ^
3 errors