From d615eda6c73629dea1a34d513b04f5cc191738f4 Mon Sep 17 00:00:00 2001
From: SimencaSs <74181505+SimencaSs@users.noreply.github.com>
Date: Wed, 23 Sep 2026 17:41:30 +0300
Subject: [PATCH 01/15] hhh

---
 src/part1/snowflake.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/part1/snowflake.py b/src/part1/snowflake.py
index d3abf050..a5eba8ee 100644
--- a/src/part1/snowflake.py
+++ b/src/part1/snowflake.py
@@ -9,7 +9,7 @@
 caller passes the sequence counter on every call and is responsible for
 advancing it within a millisecond and resetting it when the clock ticks over.
 
-Each packed field can be read back on its own with :func:`decode_timestamp_ms`,
+Each packed field can be read back on its own with :func:`decode_timestamp_ms`,hhjhj
 :func:`decode_node_id` and :func:`decode_sequence_id`.
 """
 

From e24ec21fd3f4fc69ad2b34ba820ac9170bd39f6c Mon Sep 17 00:00:00 2001
From: SimencaSs <74181505+SimencaSs@users.noreply.github.com>
Date: Wed, 23 Sep 2026 17:45:05 +0300
Subject: [PATCH 02/15] =?UTF-8?q?=D0=93=D0=BE=D1=82=D0=BE=D0=B2=D1=8B?=
 =?UTF-8?q?=D0=B9=20=D0=BA=D0=BE=D0=B4?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/part1/constants.py |  46 +++-------------
 src/part1/snowflake.py | 122 ++++++++---------------------------------
 2 files changed, 31 insertions(+), 137 deletions(-)

diff --git a/src/part1/constants.py b/src/part1/constants.py
index 9abfbba2..05135d68 100644
--- a/src/part1/constants.py
+++ b/src/part1/constants.py
@@ -1,38 +1,8 @@
-"""Bit layout and default epoch for the Twitter Snowflake ID generator.
-
-A Snowflake identifier is a 63-bit positive integer packed as follows, from
-the most significant bit downwards:
-
-    1 bit   unused sign bit, always zero
-    41 bits milliseconds elapsed since a custom epoch
-    10 bits node identifier
-    12 bits per-millisecond sequence counter
-
-The shift and mask constants should be derived from the bit widths so that
-changing a width keeps everything else consistent.
-"""
-
-from typing import Final
-
-
-# TODO: замените заглушки (0) на корректные значения, см. TASK.md.
-# Все константы, зависящие от ёмкостей *_BITS, должны вычисляться из них.
-
-# Twitter's original Snowflake epoch: 2010-11-04 01:42:54.657 UTC.
-EPOCH_MS_DEFAULT: Final[int] = 0
-
-# Node identifier used when the caller does not supply one.
-NODE_ID_DEFAULT: Final[int] = 0
-
-# Width of each field, in bits.
-TIMESTAMP_BITS: Final[int] = 0
-NODE_ID_BITS: Final[int] = 0
-SEQUENCE_ID_BITS: Final[int] = 0
-
-# Largest value each field can hold.
-TIMESTAMP_MS_MAX: Final[int] = 0
-NODE_ID_MAX: Final[int] = 0
-SEQUENCE_ID_MAX: Final[int] = 0
-
-# Здесь можно добавить собственные вспомогательные константы
-# (например, сдвиги полей при сборке идентификатора).
+EPOCH_MS_DEFAULT = 1288834974657
+NODE_ID_DEFAULT = 0
+TIMESTAMP_BITS, NODE_ID_BITS, SEQUENCE_ID_BITS = 41, 10, 12
+TIMESTAMP_MS_MAX = 2**TIMESTAMP_BITS - 1
+NODE_ID_MAX = 2**NODE_ID_BITS - 1
+SEQUENCE_ID_MAX = 2**SEQUENCE_ID_BITS - 1
+NODE_ID_SHIFT = SEQUENCE_ID_BITS
+TIMESTAMP_SHIFT = SEQUENCE_ID_BITS + NODE_ID_BITS
diff --git a/src/part1/snowflake.py b/src/part1/snowflake.py
index a5eba8ee..ec0dc666 100644
--- a/src/part1/snowflake.py
+++ b/src/part1/snowflake.py
@@ -1,114 +1,38 @@
-"""Twitter Snowflake identifier generator.
-
-Snowflake produces roughly time-ordered 64-bit integer identifiers without
-coordination between nodes. Each identifier packs the milliseconds elapsed
-since a custom epoch, a node identifier and a per-millisecond sequence counter
-into a single 63-bit positive integer (see ``constants`` for the layout).
-
-The public entry point is :func:`generate_snowflake_id`. It is stateless: the
-caller passes the sequence counter on every call and is responsible for
-advancing it within a millisecond and resetting it when the clock ticks over.
-
-Each packed field can be read back on its own with :func:`decode_timestamp_ms`,hhjhj
-:func:`decode_node_id` and :func:`decode_sequence_id`.
-"""
-
-import time  # noqa: F401
-
-from .constants import (  # noqa: F401
-    EPOCH_MS_DEFAULT,
-    NODE_ID_DEFAULT,
-    NODE_ID_MAX,
-    SEQUENCE_ID_MAX,
-    TIMESTAMP_MS_MAX,
-)
+import time
 
+from constants import *
 
 def read_current_millis(epoch_ms: int) -> int:
-    """Read the number of milliseconds elapsed since the custom epoch.
-
-    Args:
-        epoch_ms: The custom epoch expressed as Unix milliseconds.
-
-    Returns:
-        The count of whole milliseconds between ``epoch_ms`` and now. May be
-        negative if ``epoch_ms`` lies in the future.
-    """
-    # TODO: реализуйте функцию
-    return 0
-
+    return time.time_ns() // 1_000_000 - epoch_ms
 
 def decode_timestamp_ms(snowflake_id: int, epoch_ms: int = EPOCH_MS_DEFAULT) -> int:
-    """Read the timestamp field out of a Snowflake identifier.
-
-    Args:
-        snowflake_id: An identifier produced against the same epoch.
-        epoch_ms: The epoch the identifier was generated against. Defaults to
-            the original Twitter epoch (2010-11-04 01:42:54.657 UTC).
-
-    Returns:
-        The absolute Unix time in milliseconds at which the identifier was
-        generated.
-    """
-    # TODO: реализуйте функцию
-    return 0
-
+    stored_ms = snowflake_id >> TIMESTAMP_SHIFT
+    return stored_ms + epoch_ms
 
 def decode_node_id(snowflake_id: int) -> int:
-    """Read the node identifier field out of a Snowflake identifier.
-
-    Args:
-        snowflake_id: An identifier produced by :func:`generate_snowflake_id`.
-
-    Returns:
-        The node identifier packed into ``snowflake_id``, in the range
-        ``[0, NODE_ID_MAX]``.
-    """
-    # TODO: реализуйте функцию
-    return 0
-
+    return (snowflake_id >> NODE_ID_SHIFT) & NODE_ID_MAX
 
 def decode_sequence_id(snowflake_id: int) -> int:
-    """Read the sequence counter field out of a Snowflake identifier.
-
-    Args:
-        snowflake_id: An identifier produced by :func:`generate_snowflake_id`.
-
-    Returns:
-        The per-millisecond sequence counter packed into ``snowflake_id``, in
-        the range ``[0, SEQUENCE_ID_MAX]``.
-    """
-    # TODO: реализуйте функцию
-    return 0
-
+    return snowflake_id & SEQUENCE_ID_MAX
 
 def generate_snowflake_id(
-    sequence_id: int,
-    node_id: int = NODE_ID_DEFAULT,
-    epoch_ms: int = EPOCH_MS_DEFAULT,
+    sequence_id: int, node_id: int = NODE_ID_DEFAULT, epoch_ms: int = EPOCH_MS_DEFAULT
 ) -> int | None:
-    """Build and return a Snowflake identifier for the current millisecond.
 
-    The function is stateless: the caller passes the per-millisecond sequence
-    counter explicitly. It is the caller's responsibility to increment
-    ``sequence_id`` for identifiers minted within the same millisecond and to
-    reset it once the clock advances.
+    if not (0 <= node_id <= NODE_ID_MAX):
+        print(f"node_id must be in [0, {NODE_ID_MAX}], got {node_id}")
+        return None
+
+    if not (0 <= sequence_id <= SEQUENCE_ID_MAX):
+        print(f"sequence_id must be in [0, {SEQUENCE_ID_MAX}], got {sequence_id}")
+        return None
 
-    Args:
-        sequence_id: The per-millisecond sequence counter, in the range
-            ``[0, SEQUENCE_ID_MAX]``.
-        node_id: The identifier of this node, in the range ``[0, NODE_ID_MAX]``.
-            Optional; defaults to ``NODE_ID_DEFAULT``.
-        epoch_ms: The start of the epoch as Unix milliseconds. Optional;
-            defaults to the original Twitter epoch (2010-11-04 01:42:54.657
-            UTC).
+    elapsed_ms = read_current_millis(epoch_ms)
+    if elapsed_ms > TIMESTAMP_MS_MAX:
+        print(f"timestamp overflows: {elapsed_ms} > {TIMESTAMP_MS_MAX}")
+        return None
 
-    Returns:
-        The Snowflake identifier as a positive 63-bit integer, or ``None`` if
-        ``node_id`` is outside ``[0, NODE_ID_MAX]``, ``sequence_id`` is outside
-        ``[0, SEQUENCE_ID_MAX]``, or the elapsed time no longer fits in the
-        timestamp field (roughly 69 years after ``epoch_ms``). In each of those
-        cases an explanatory message is printed to stdout first.
-    """
-    # TODO: реализуйте функцию
-    return 0
+    snowflake_id = (
+        (elapsed_ms << TIMESTAMP_SHIFT) | (node_id << NODE_ID_SHIFT) | (sequence_id)
+    )
+    return snowflake_id
\ No newline at end of file

From bc9c9364072788f6304b968089ab4aeb42674bd2 Mon Sep 17 00:00:00 2001
From: SimencaSs <74181505+SimencaSs@users.noreply.github.com>
Date: Wed, 23 Sep 2026 17:52:47 +0300
Subject: [PATCH 03/15] =?UTF-8?q?=D0=93=D0=BE=D1=82=D0=BE=D0=B2=D1=8B?=
 =?UTF-8?q?=D0=B9=20=D0=BA=D0=BE=D0=B4=202?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/part1/snowflake.py | 23 +++++++++++++++++------
 1 file changed, 17 insertions(+), 6 deletions(-)

diff --git a/src/part1/snowflake.py b/src/part1/snowflake.py
index ec0dc666..af2eff98 100644
--- a/src/part1/snowflake.py
+++ b/src/part1/snowflake.py
@@ -1,6 +1,14 @@
 import time
 
-from constants import *
+from constants import (
+    EPOCH_MS_DEFAULT,
+    NODE_ID_DEFAULT,
+    NODE_ID_MAX,
+    NODE_ID_SHIFT,
+    SEQUENCE_ID_MAX,
+    TIMESTAMP_MS_MAX,
+    TIMESTAMP_SHIFT,
+)
 
 def read_current_millis(epoch_ms: int) -> int:
     return time.time_ns() // 1_000_000 - epoch_ms
@@ -16,7 +24,9 @@ def decode_sequence_id(snowflake_id: int) -> int:
     return snowflake_id & SEQUENCE_ID_MAX
 
 def generate_snowflake_id(
-    sequence_id: int, node_id: int = NODE_ID_DEFAULT, epoch_ms: int = EPOCH_MS_DEFAULT
+    sequence_id: int,
+    node_id: int = NODE_ID_DEFAULT,
+    epoch_ms: int = EPOCH_MS_DEFAULT,
 ) -> int | None:
 
     if not (0 <= node_id <= NODE_ID_MAX):
@@ -32,7 +42,8 @@ def generate_snowflake_id(
         print(f"timestamp overflows: {elapsed_ms} > {TIMESTAMP_MS_MAX}")
         return None
 
-    snowflake_id = (
-        (elapsed_ms << TIMESTAMP_SHIFT) | (node_id << NODE_ID_SHIFT) | (sequence_id)
-    )
-    return snowflake_id
\ No newline at end of file
+    return (
+        (elapsed_ms << TIMESTAMP_SHIFT)
+        | (node_id << NODE_ID_SHIFT)
+        | sequence_id
+    )
\ No newline at end of file

From c08ad7071075016d5e583c007c45d5c8d4909a87 Mon Sep 17 00:00:00 2001
From: SimencaSs <74181505+SimencaSs@users.noreply.github.com>
Date: Thu, 24 Sep 2026 22:34:28 +0300
Subject: [PATCH 04/15] =?UTF-8?q?=D0=92=D0=B5=D1=80=D1=81=D0=B8=D1=8F=203?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/part1/snowflake.py | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/src/part1/snowflake.py b/src/part1/snowflake.py
index af2eff98..049c065d 100644
--- a/src/part1/snowflake.py
+++ b/src/part1/snowflake.py
@@ -11,7 +11,7 @@
 )
 
 def read_current_millis(epoch_ms: int) -> int:
-    return time.time_ns() // 1_000_000 - epoch_ms
+    return time.time_ns() // 1000000 - epoch_ms
 
 def decode_timestamp_ms(snowflake_id: int, epoch_ms: int = EPOCH_MS_DEFAULT) -> int:
     stored_ms = snowflake_id >> TIMESTAMP_SHIFT
@@ -43,7 +43,5 @@ def generate_snowflake_id(
         return None
 
     return (
-        (elapsed_ms << TIMESTAMP_SHIFT)
-        | (node_id << NODE_ID_SHIFT)
-        | sequence_id
+        (elapsed_ms << TIMESTAMP_SHIFT) | (node_id << NODE_ID_SHIFT) | sequence_id
     )
\ No newline at end of file

From a09a31cf3424e9341ae4b0ad8333b7899ac711bc Mon Sep 17 00:00:00 2001
From: SimencaSs <74181505+SimencaSs@users.noreply.github.com>
Date: Thu, 24 Sep 2026 22:47:27 +0300
Subject: [PATCH 05/15] =?UTF-8?q?=D0=92=D0=B5=D1=80=D1=81=D0=B8=D1=8F=204?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/part1/snowflake.py | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/part1/snowflake.py b/src/part1/snowflake.py
index 049c065d..4589acb3 100644
--- a/src/part1/snowflake.py
+++ b/src/part1/snowflake.py
@@ -10,23 +10,30 @@
     TIMESTAMP_SHIFT,
 )
 
+
 def read_current_millis(epoch_ms: int) -> int:
     return time.time_ns() // 1000000 - epoch_ms
 
+
 def decode_timestamp_ms(snowflake_id: int, epoch_ms: int = EPOCH_MS_DEFAULT) -> int:
     stored_ms = snowflake_id >> TIMESTAMP_SHIFT
     return stored_ms + epoch_ms
 
+
 def decode_node_id(snowflake_id: int) -> int:
     return (snowflake_id >> NODE_ID_SHIFT) & NODE_ID_MAX
 
+
 def decode_sequence_id(snowflake_id: int) -> int:
     return snowflake_id & SEQUENCE_ID_MAX
 
+
 def generate_snowflake_id(
     sequence_id: int,
     node_id: int = NODE_ID_DEFAULT,
     epoch_ms: int = EPOCH_MS_DEFAULT,
+    
+
 ) -> int | None:
 
     if not (0 <= node_id <= NODE_ID_MAX):

From 7069e220f3466c1109a90a8391f941297acc4c3d Mon Sep 17 00:00:00 2001
From: SimencaSs <74181505+SimencaSs@users.noreply.github.com>
Date: Thu, 24 Sep 2026 22:51:10 +0300
Subject: [PATCH 06/15] =?UTF-8?q?=D0=92=D0=B5=D1=80=D1=81=D0=B8=D1=8F=204?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/part1/snowflake.py | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/src/part1/snowflake.py b/src/part1/snowflake.py
index 4589acb3..d7096813 100644
--- a/src/part1/snowflake.py
+++ b/src/part1/snowflake.py
@@ -35,7 +35,6 @@ def generate_snowflake_id(
     
 
 ) -> int | None:
-
     if not (0 <= node_id <= NODE_ID_MAX):
         print(f"node_id must be in [0, {NODE_ID_MAX}], got {node_id}")
         return None
@@ -49,6 +48,4 @@ def generate_snowflake_id(
         print(f"timestamp overflows: {elapsed_ms} > {TIMESTAMP_MS_MAX}")
         return None
 
-    return (
-        (elapsed_ms << TIMESTAMP_SHIFT) | (node_id << NODE_ID_SHIFT) | sequence_id
-    )
\ No newline at end of file
+    return (elapsed_ms << TIMESTAMP_SHIFT) | (node_id << NODE_ID_SHIFT) | sequence_id
\ No newline at end of file

From 40434a025fdf2564482f27d01c8506f1cc4581b3 Mon Sep 17 00:00:00 2001
From: SimencaSs <74181505+SimencaSs@users.noreply.github.com>
Date: Thu, 24 Sep 2026 22:54:51 +0300
Subject: [PATCH 07/15] Update snowflake.py
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Версия 5
---
 src/part1/snowflake.py | 2 --
 1 file changed, 2 deletions(-)

diff --git a/src/part1/snowflake.py b/src/part1/snowflake.py
index d7096813..2b2e5927 100644
--- a/src/part1/snowflake.py
+++ b/src/part1/snowflake.py
@@ -32,8 +32,6 @@ def generate_snowflake_id(
     sequence_id: int,
     node_id: int = NODE_ID_DEFAULT,
     epoch_ms: int = EPOCH_MS_DEFAULT,
-    
-
 ) -> int | None:
     if not (0 <= node_id <= NODE_ID_MAX):
         print(f"node_id must be in [0, {NODE_ID_MAX}], got {node_id}")

From e4cc97b07465d4b3ff1c7062b17dcd2da8b5296b Mon Sep 17 00:00:00 2001
From: SimencaSs <74181505+SimencaSs@users.noreply.github.com>
Date: Thu, 24 Sep 2026 22:59:02 +0300
Subject: [PATCH 08/15] =?UTF-8?q?=D0=92=D0=B0=D1=80=D0=B8=D0=B0=D0=BD?=
 =?UTF-8?q?=D1=82=205?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/part1/snowflake.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/part1/snowflake.py b/src/part1/snowflake.py
index 2b2e5927..1d56c62b 100644
--- a/src/part1/snowflake.py
+++ b/src/part1/snowflake.py
@@ -46,4 +46,5 @@ def generate_snowflake_id(
         print(f"timestamp overflows: {elapsed_ms} > {TIMESTAMP_MS_MAX}")
         return None
 
-    return (elapsed_ms << TIMESTAMP_SHIFT) | (node_id << NODE_ID_SHIFT) | sequence_id
\ No newline at end of file
+    return (
+        elapsed_ms << TIMESTAMP_SHIFT) | (node_id << NODE_ID_SHIFT) | sequence_id
\ No newline at end of file

From 8ff5dbf8c9235fe0b9058bb1135342229adf2db9 Mon Sep 17 00:00:00 2001
From: SimencaSs <74181505+SimencaSs@users.noreply.github.com>
Date: Thu, 24 Sep 2026 23:02:01 +0300
Subject: [PATCH 09/15] =?UTF-8?q?=D0=92=D0=B0=D1=80=D0=B8=D0=B0=D0=BD?=
 =?UTF-8?q?=D1=82=206?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/part1/snowflake.py | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/src/part1/snowflake.py b/src/part1/snowflake.py
index 1d56c62b..be626222 100644
--- a/src/part1/snowflake.py
+++ b/src/part1/snowflake.py
@@ -46,5 +46,4 @@ def generate_snowflake_id(
         print(f"timestamp overflows: {elapsed_ms} > {TIMESTAMP_MS_MAX}")
         return None
 
-    return (
-        elapsed_ms << TIMESTAMP_SHIFT) | (node_id << NODE_ID_SHIFT) | sequence_id
\ No newline at end of file
+    return ( elapsed_ms << TIMESTAMP_SHIFT) | (node_id << NODE_ID_SHIFT) | sequence_id
\ No newline at end of file

From b913ec417b20e37f0e6557aed181e2a353a746a6 Mon Sep 17 00:00:00 2001
From: SimencaSs <74181505+SimencaSs@users.noreply.github.com>
Date: Thu, 24 Sep 2026 23:03:14 +0300
Subject: [PATCH 10/15] =?UTF-8?q?=D0=92=D0=B0=D1=80=D0=B8=D0=B0=D0=BD?=
 =?UTF-8?q?=D1=82=207?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/part1/snowflake.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/part1/snowflake.py b/src/part1/snowflake.py
index be626222..2b2e5927 100644
--- a/src/part1/snowflake.py
+++ b/src/part1/snowflake.py
@@ -46,4 +46,4 @@ def generate_snowflake_id(
         print(f"timestamp overflows: {elapsed_ms} > {TIMESTAMP_MS_MAX}")
         return None
 
-    return ( elapsed_ms << TIMESTAMP_SHIFT) | (node_id << NODE_ID_SHIFT) | sequence_id
\ No newline at end of file
+    return (elapsed_ms << TIMESTAMP_SHIFT) | (node_id << NODE_ID_SHIFT) | sequence_id
\ No newline at end of file

From c921b9f98c98bc47d83b9977c7551b2c404ebea8 Mon Sep 17 00:00:00 2001
From: SimencaSs <74181505+SimencaSs@users.noreply.github.com>
Date: Thu, 24 Sep 2026 23:10:43 +0300
Subject: [PATCH 11/15] =?UTF-8?q?=D0=92=D0=B0=D1=80=D0=B8=D0=B0=D0=BD?=
 =?UTF-8?q?=D1=82=208?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/part1/snowflake.py | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/part1/snowflake.py b/src/part1/snowflake.py
index 2b2e5927..9e92b7ad 100644
--- a/src/part1/snowflake.py
+++ b/src/part1/snowflake.py
@@ -46,4 +46,8 @@ def generate_snowflake_id(
         print(f"timestamp overflows: {elapsed_ms} > {TIMESTAMP_MS_MAX}")
         return None
 
-    return (elapsed_ms << TIMESTAMP_SHIFT) | (node_id << NODE_ID_SHIFT) | sequence_id
\ No newline at end of file
+    return (
+        (elapsed_ms << TIMESTAMP_SHIFT) 
+        | (node_id << NODE_ID_SHIFT) 
+        | sequence_id
+    )
\ No newline at end of file

From 62f28bb8993b075a352f1f544936ada756b76e3f Mon Sep 17 00:00:00 2001
From: SimencaSs <74181505+SimencaSs@users.noreply.github.com>
Date: Thu, 24 Sep 2026 23:12:19 +0300
Subject: [PATCH 12/15] =?UTF-8?q?=D0=92=D0=B0=D1=80=D0=B8=D0=B0=D0=BD?=
 =?UTF-8?q?=D1=82=209?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/part1/snowflake.py | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/src/part1/snowflake.py b/src/part1/snowflake.py
index 9e92b7ad..2b2e5927 100644
--- a/src/part1/snowflake.py
+++ b/src/part1/snowflake.py
@@ -46,8 +46,4 @@ def generate_snowflake_id(
         print(f"timestamp overflows: {elapsed_ms} > {TIMESTAMP_MS_MAX}")
         return None
 
-    return (
-        (elapsed_ms << TIMESTAMP_SHIFT) 
-        | (node_id << NODE_ID_SHIFT) 
-        | sequence_id
-    )
\ No newline at end of file
+    return (elapsed_ms << TIMESTAMP_SHIFT) | (node_id << NODE_ID_SHIFT) | sequence_id
\ No newline at end of file

From 9bf797b29b9087e62af5d33489b386cabec0122f Mon Sep 17 00:00:00 2001
From: SimencaSs <74181505+SimencaSs@users.noreply.github.com>
Date: Thu, 24 Sep 2026 23:59:22 +0300
Subject: [PATCH 13/15] =?UTF-8?q?=D0=92=D0=B0=D1=80=D0=B8=D0=B0=D0=BD?=
 =?UTF-8?q?=D1=82=2010?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/part1/constants.py | 20 ++++++++++++--------
 src/part1/snowflake.py |  2 +-
 2 files changed, 13 insertions(+), 9 deletions(-)

diff --git a/src/part1/constants.py b/src/part1/constants.py
index 05135d68..478de728 100644
--- a/src/part1/constants.py
+++ b/src/part1/constants.py
@@ -1,8 +1,12 @@
-EPOCH_MS_DEFAULT = 1288834974657
-NODE_ID_DEFAULT = 0
-TIMESTAMP_BITS, NODE_ID_BITS, SEQUENCE_ID_BITS = 41, 10, 12
-TIMESTAMP_MS_MAX = 2**TIMESTAMP_BITS - 1
-NODE_ID_MAX = 2**NODE_ID_BITS - 1
-SEQUENCE_ID_MAX = 2**SEQUENCE_ID_BITS - 1
-NODE_ID_SHIFT = SEQUENCE_ID_BITS
-TIMESTAMP_SHIFT = SEQUENCE_ID_BITS + NODE_ID_BITS
+from typing import Final
+
+EPOCH_MS_DEFAULT: Final[int] = 1288834974657
+NODE_ID_DEFAULT: Final[int] = 0
+TIMESTAMP_BITS: Final[int] = 41
+NODE_ID_BITS: Final[int] = 10
+SEQUENCE_ID_BITS: Final[int] = 12
+TIMESTAMP_MS_MAX: Final[int] = 2**TIMESTAMP_BITS - 1
+NODE_ID_MAX: Final[int] = 2**NODE_ID_BITS - 1
+SEQUENCE_ID_MAX: Final[int] = 2**SEQUENCE_ID_BITS - 1
+NODE_ID_SHIFT: Final[int] = SEQUENCE_ID_BITS
+TIMESTAMP_SHIFT: Final[int] = SEQUENCE_ID_BITS + NODE_ID_BITS
diff --git a/src/part1/snowflake.py b/src/part1/snowflake.py
index 2b2e5927..fc8a3fa9 100644
--- a/src/part1/snowflake.py
+++ b/src/part1/snowflake.py
@@ -46,4 +46,4 @@ def generate_snowflake_id(
         print(f"timestamp overflows: {elapsed_ms} > {TIMESTAMP_MS_MAX}")
         return None
 
-    return (elapsed_ms << TIMESTAMP_SHIFT) | (node_id << NODE_ID_SHIFT) | sequence_id
\ No newline at end of file
+    return (elapsed_ms << TIMESTAMP_SHIFT) | (node_id << NODE_ID_SHIFT) | sequence_id

From 97247760f0b296349774e56b6190bc72edcc9157 Mon Sep 17 00:00:00 2001
From: SimencaSs <74181505+SimencaSs@users.noreply.github.com>
Date: Fri, 25 Sep 2026 00:03:31 +0300
Subject: [PATCH 14/15] =?UTF-8?q?=D0=92=D0=B0=D1=80=D0=B8=D0=B0=D0=BD?=
 =?UTF-8?q?=D1=82=2011?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/part1/constants.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/part1/constants.py b/src/part1/constants.py
index 478de728..0339d24f 100644
--- a/src/part1/constants.py
+++ b/src/part1/constants.py
@@ -1,5 +1,6 @@
 from typing import Final
 
+
 EPOCH_MS_DEFAULT: Final[int] = 1288834974657
 NODE_ID_DEFAULT: Final[int] = 0
 TIMESTAMP_BITS: Final[int] = 41

From 66079fe9790091d966b857772852e0aee75d70af Mon Sep 17 00:00:00 2001
From: SimencaSs <74181505+SimencaSs@users.noreply.github.com>
Date: Fri, 25 Sep 2026 00:28:49 +0300
Subject: [PATCH 15/15] =?UTF-8?q?=D0=92=D0=B0=D1=80=D0=B8=D0=B0=D0=BD?=
 =?UTF-8?q?=D1=82=2012?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 pyproject.toml         | 7 +++++++
 src/part1/__init__.py  | 1 -
 src/part1/snowflake.py | 2 +-
 3 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/pyproject.toml b/pyproject.toml
index 06fbe913..83913475 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -33,3 +33,10 @@ avoid-escape = true
 [tool.ruff.lint.isort]
 lines-after-imports = 2
 split-on-trailing-comma = true
+
+[tool.mypy]
+strict = true
+mypy_path = "src"
+namespace_packages = true
+explicit_package_bases = true
+
diff --git a/src/part1/__init__.py b/src/part1/__init__.py
index 242b07ce..e69de29b 100644
--- a/src/part1/__init__.py
+++ b/src/part1/__init__.py
@@ -1 +0,0 @@
-"""Homework 3: a Twitter Snowflake identifier generator and its bit layout."""
diff --git a/src/part1/snowflake.py b/src/part1/snowflake.py
index fc8a3fa9..a3f3fe8f 100644
--- a/src/part1/snowflake.py
+++ b/src/part1/snowflake.py
@@ -1,6 +1,6 @@
 import time
 
-from constants import (
+from part1.constants import (
     EPOCH_MS_DEFAULT,
     NODE_ID_DEFAULT,
     NODE_ID_MAX,