static void Main(String[] args)
{
var s = new SortedSet <int>();
int n = Cin.NextInt();
for (int i = 0; i < n; i++)
{
int c = Cin.NextInt();
if (c == 3)
{
Cout.Print(s.Min);
}
else
{
int oph = Cin.NextInt();
if (c == 1)
{
s.Add(oph);
}
else
{
s.Remove(oph);
}
}
}
}
static void Main(String[] args)
{
int n = Cin.NextInt();
int k = Cin.NextInt();
int[] ns = new int[n];
var d = new Dictionary <int, int>();
for (int i = 0; i < n; i++)
{
ns[i] = Cin.NextInt();
int r = ns[i] % k;
if (!d.ContainsKey(r))
{
d[r] = 0;
}
d[r]++;
}
int ans = 0;
for (int i = 1; i < (k + 1) / 2; i++)
{
int a = i;
int b = k - i;
int cnt_a = d.ContainsKey(a)? d[a]: 0;
int cnt_b = d.ContainsKey(b)? d[b]: 0;
// Cout.Print($"{a} {b} {cnt_a} {cnt_b}");
ans += Math.Max(cnt_a, cnt_b);
}
if (d.ContainsKey(0))
{
ans++;
}
if (k % 2 == 0 && d.ContainsKey(k / 2))
{
ans++;
}
Cout.Print(ans);
}
static void Main(string[] args)
{
int n = Cin.NextInt();
string[] maze = new string[n];
for (int i = 0; i < n; i++)
{
maze[i] = Cin.NextToken();
}
int y1 = Cin.NextInt();
int x1 = Cin.NextInt();
int y2 = Cin.NextInt();
int x2 = Cin.NextInt();
var p1 = new Point(x1, y1);
var p2 = new Point(x2, y2);
Cout.Print(Bfs(maze, n, p1, p2));
}
public void Resolve()
{
var cursorVisible = Console.CursorVisible;
Console.CursorVisible = true;
while (true)
{
Cout.Print("? ", new ConColor {
ForegroundColor = ConsoleColor.Green
});
Cout.Print($"{Question}: ");
var left = Console.CursorLeft;
var top = Console.CursorTop;
var answer = Console.ReadLine();
var result = Resolver(answer);
if (result is null)
{
continue;
}
Console.SetCursorPosition(left, top);
Echo.Instance.Print(result, new ConColor {
ForegroundColor = ConsoleColor.Cyan
});
if (result.GetLengthA() < answer.GetLengthA())
{
Console.Write(" ".Repeat(answer.GetLengthA() - result.GetLengthA()));
}
Console.WriteLine();
break;
}
Console.CursorVisible = cursorVisible;
}
public void Resolve(Action <AskAnswer> resolve)
{
begin:
var buffer = new StringBuilder();
var answer = new AskAnswer();
if (Question is not null && Question.Length > 0)
{
PrintAskHint?.Invoke();
if (Question.EndsWith(Environment.NewLine))
{
Cout.Print(Question);
}
else
{
Cout.Print($"{Question} ");
}
}
var left = Console.CursorLeft;
var top = Console.CursorTop;
while (true)
{
answer.Action = AskAction.Default;
var line = Console.ReadLine();
buffer.Append(line);
var bufferString = buffer.ToString();
answer.Value = bufferString;
resolve(answer);
if (answer.Action == AskAction.Default)
{
throw new InvalidOperationException($"AskAnswer.Action must be changed in the method.");
}
if (answer.Action == AskAction.Accept)
{
Console.SetCursorPosition(left, top);
Echo.Instance.Print(" ".Repeat(bufferString.GetLengthA()));
Console.SetCursorPosition(left, top);
Echo.Instance.Print(answer.Value, new ConColor {
ForegroundColor = ConsoleColor.Cyan
});
Console.WriteLine();
return;
}
else if (answer.Action == AskAction.Continue)
{
buffer.AppendLine();
continue;
}
else if (answer.Action == AskAction.Retry)
{
goto begin;
}
else
{
throw new NotImplementedException();
}
}
}