Submission #3132167


Source Code Expand

var
	n,l,r:Longint;
	s:String;
begin
	readln(n);
	readln(s);
	l:=1;
	r:=length(s);
	while l<r do begin
		if (s[l]='b')and(s[r]='b')then begin
			inc(l);
			dec(r);
		end
		else if (s[l]='a')and(s[r]='c')then begin
			inc(l);
			dec(r);
		end
		else if (s[l]='c')and(s[r]='a')then begin
			inc(l);
			dec(r);
		end
		else break;
	end;
	if (l=r)and(s[l]='b')then writeln(n div 2)else writeln(-1);
end.

Submission Info

Submission Time
Task B - 手芸王
User kotatsugame
Language Pascal (FPC 2.6.2)
Score 100
Code Size 425 Byte
Status AC
Exec Time 0 ms
Memory 128 KB

Compile Error

/usr/bin/ld.bfd: warning: ./link.res contains output sections; did you forget -T?

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 100 / 100
Status
AC × 4
AC × 29
Set Name Test Cases
Sample subtask0-sample01.txt, subtask0-sample02.txt, subtask0-sample03.txt, subtask0-sample04.txt
All subtask0-sample01.txt, subtask0-sample02.txt, subtask0-sample03.txt, subtask0-sample04.txt, subtask1-01.txt, subtask1-02.txt, subtask1-03.txt, subtask1-04.txt, subtask1-05.txt, subtask1-06.txt, subtask1-07.txt, subtask1-08.txt, subtask1-09.txt, subtask1-10.txt, subtask1-11.txt, subtask1-12.txt, subtask1-13.txt, subtask1-14.txt, subtask1-15.txt, subtask1-16.txt, subtask1-17.txt, subtask1-18.txt, subtask1-19.txt, subtask1-20.txt, subtask1-21.txt, subtask1-22.txt, subtask1-23.txt, subtask1-24.txt, subtask1-25.txt
Case Name Status Exec Time Memory
subtask0-sample01.txt AC 0 ms 128 KB
subtask0-sample02.txt AC 0 ms 128 KB
subtask0-sample03.txt AC 0 ms 128 KB
subtask0-sample04.txt AC 0 ms 128 KB
subtask1-01.txt AC 0 ms 128 KB
subtask1-02.txt AC 0 ms 128 KB
subtask1-03.txt AC 0 ms 128 KB
subtask1-04.txt AC 0 ms 128 KB
subtask1-05.txt AC 0 ms 128 KB
subtask1-06.txt AC 0 ms 128 KB
subtask1-07.txt AC 0 ms 128 KB
subtask1-08.txt AC 0 ms 128 KB
subtask1-09.txt AC 0 ms 128 KB
subtask1-10.txt AC 0 ms 128 KB
subtask1-11.txt AC 0 ms 128 KB
subtask1-12.txt AC 0 ms 128 KB
subtask1-13.txt AC 0 ms 128 KB
subtask1-14.txt AC 0 ms 128 KB
subtask1-15.txt AC 0 ms 128 KB
subtask1-16.txt AC 0 ms 128 KB
subtask1-17.txt AC 0 ms 128 KB
subtask1-18.txt AC 0 ms 128 KB
subtask1-19.txt AC 0 ms 128 KB
subtask1-20.txt AC 0 ms 128 KB
subtask1-21.txt AC 0 ms 128 KB
subtask1-22.txt AC 0 ms 128 KB
subtask1-23.txt AC 0 ms 128 KB
subtask1-24.txt AC 0 ms 128 KB
subtask1-25.txt AC 0 ms 128 KB