统计 - RQNOJ

编译失败，当前编译语言：C++

详情如下

/tmp/1211217.cpp:3:15: error: too many decimal points in number
   a,k,b:array[1..1000000]of int64;
               ^
/tmp/1211217.cpp:1:1: error: ‘var’ does not name a type
 var
 ^
/tmp/1211217.cpp:3:3: error: ‘a’ does not name a type
   a,k,b:array[1..1000000]of int64;
   ^
/tmp/1211217.cpp:4:1: error: ‘begin’ does not name a type
 begin
 ^
/tmp/1211217.cpp:6:9: error: expected constructor, destructor, or type conversion before ‘(’ token
   readln(n,a1,b1);
         ^
/tmp/1211217.cpp:7:3: error: expected unqualified-id before ‘for’
   for i:=1 to n do read(k[i]);
   ^
/tmp/1211217.cpp:8:3: error: expected unqualified-id before ‘if’
   if a1=b1 then begin writeln(0);halt;end;
   ^
/tmp/1211217.cpp:8:34: error: ‘halt’ does not name a type
   if a1=b1 then begin writeln(0);halt;end;
                                  ^
/tmp/1211217.cpp:8:39: error: ‘end’ does not name a type
   if a1=b1 then begin writeln(0);halt;end;
                                       ^
/tmp/1211217.cpp:9:3: error: ‘head’ does not name a type
   head:=0;tail:=1;a[1]:=a1;
   ^
/tmp/1211217.cpp:9:11: error: ‘tail’ does not name a type
   head:=0;tail:=1;a[1]:=a1;
           ^
/tmp/1211217.cpp:9:19: error: ‘a’ does not name a type
   head:=0;tail:=1;a[1]:=a1;
                   ^
/tmp/1211217.cpp:10:3: error: expected unqualified-id before ‘while’
   while head<>tail do
   ^
/tmp/1211217.cpp:13:5: error: ‘t1’ does not name a type
     t1:=a[head]-k[a[head]];
     ^
/tmp/1211217.cpp:14:5: error: ‘t2’ does not name a type
     t2:=a[head]+k[a[head]];
     ^
/tmp/1211217.cpp:15:5: error: expected unqualified-id before ‘if’
     if (t1=b1)or(t2=b1) then begin writeln(head);halt;end;
     ^
/tmp/1211217.cpp:15:50: error: ‘halt’ does not name a type
     if (t1=b1)or(t2=b1) then begin writeln(head);halt;end;
                                                  ^
/tmp/1211217.cpp:15:55: error: ‘end’ does not name a type
     if (t1=b1)or(t2=b1) then begin writeln(head);halt;end;
           ......