SM-2 spaced repetition · LeetCode · Codeforces

Solve 200 problems.
Remember all 200.

Memoize auto-captures every accepted submission and uses the SM-2 algorithm to schedule reviews at the exact moment you'd forget — so your prep compounds instead of leaking.

Add to Chrome — Free Open Dashboard

Manual install via chrome://extensions · GitHub or Google sign-in · No credit card

No manual logging everInstalls in ~2 minutesFree foreverGitHub & Google auth

memoize-navy.vercel.app/dashboard

Memoize

Solve once.

Overview

16 problems solved this week

TOTAL SOLVED

0 attempted

LEETCODE

3E · 10M · 1H

CODEFORCES

7 total

STREAK

Best: 4 days

ACTIVITY

21 problems this year

RECENTLY SOLVED

View all →

Container With Most Water

LCsliding_window

4m ago

Remove Nth Node From End of List

LCbit_manipulation

1d ago

3Sum Closest

LCdfs

2d ago

DUE FOR REVISION

Open queue →

Palindrome Number

two_pointers

4Sum

merge_intervals

Zigzag Conversion

sliding_window

memoize-navy.vercel.app

TOTAL SOLVED

LEETCODE

CODEFORCES

STREAK

4 days

DUE FOR REVISION

Palindrome Number · 4Sum · Zigzag...

Problems tracked

LeetCode & Codeforces combined

growing

Platforms

LeetCode · Codeforces

DSA patterns

Foundations to advanced

0 min

To set up

Install, sign in, start solving

The problem

Grinding problems isn't the problem. Forgetting them is.

Three reasons why engineers who grind 200 problems still blank in interviews.

01 — THE GRIND

You grind 200 problems. You feel ready. Then the interviewer asks Two Sum II and your mind goes blank — because you solved it 3 weeks ago and never looked at it again. Raw volume without retention is just expensive practice.

PROBLEM

STATUS

CONF.

DATE

Two Sum

✓

Mar 1

Valid Parentheses

✓

Feb 28

Merge Intervals

???

Feb 20

LRU Cache

✓

Feb 15

Course Schedule

???

Feb 10

5 problems overdue for review

02 — THE FORGETTING

Without review, you forget 70% of a solution within 24 hours. Spreadsheets, starred problems, revision folders — none of it fires at the right moment. You review too early or too late, and it barely sticks.

Without review

With SM-2

~70% forgotten within 24 hours without review — Ebbinghaus, 1885

03 — THE BLIND SPOT

You don't know what you don't know. Without pattern tracking, you unknowingly over-index on 3 comfortable tags while leaving 13 others untouched. Interviewers pick exactly the patterns you avoided.

Array

Two Pointers

Sliding Window

Binary Search

Dynamic Prog.

not yet

Backtracking

not yet

Graphs / BFS

not yet

Trie

not yet

10 of 16 patterns never attempted

How it works

Zero new habits. Just solve — Memoize handles the rest.

Three steps. The first is automatic. The second takes 20 seconds. The third runs in the background forever.

Solve on LeetCode or Codeforces

Auto-detected

Submit your solution as usual. The moment it's accepted, the extension detects it automatically — no copy-pasting, no tab-switching.

Platform, difficulty, tags, runtime, and memory are all pulled in without you touching anything.

Rate it honestly. Takes 20 seconds.

Manual install required

A popup appears. You pick how it felt (Easy/Medium/Hard), your confidence to solve it again, the pattern it used, and optionally add a quick note on your approach.

Dashboard tells you exactly what to review and when.

SM-2 algorithm

SM-2 calculates your next review date based on your confidence rating. Problems you're shaky on come back tomorrow. Strong ones return in weeks.

Memoize

Accepted

Container With Most Water

MediumArray +2

Problem Info

PROBLEM NAME

Container With Most Water

PLATFORM

LeetCode

DIFFICULTY

Easy

Medium

Hard

TAGS AUTO-FILLED

Array, Two Pointers, Greedy

1 ms · 59.9 MB · javascript

Features

Your solve sessions just got a memory.

Auto-capture, spaced repetition, readiness scoring, pattern tracking — running silently while you focus on solving.

Zero effort

Auto-captures every accepted solve

The extension detects submissions on LeetCode and Codeforces the moment they're accepted. Platform, tags, difficulty, runtime — all pulled in automatically.

3Sum Closest

Medium· Two Pointers

just now

Jump Game II

Medium· Greedy

2m ago

Beautiful Matrix

Hard· DP

1h ago

Extension active — capturing automatically

SM-2 algorithm

Reviews scheduled at the exact moment you'd forget

The SM-2 algorithm calculates your personal decay rate per problem. Shaky on Two Pointers? You'll see it again tomorrow. Solid on Arrays? In 3 weeks.

Solved

Mar 4

Review 1+1d

Mar 5

Review 2+6d

Mar 11

Review 3+15d

Mar 26scheduled

Review 4+30d

Apr 25scheduled

Interval grows only when you remember. Forget it → resets to Day 1.

Interview readiness

A single score that tells you if you're ready

Four signals — consistency, difficulty spread, average confidence, and revision discipline — combined into one honest number. Know exactly where you stand before the interview.

/ 100

On Track

Consistency50

Difficulty Spread95

Avg Confidence72

Revision Discipline57

Pattern awareness

See your blind spots before the interviewer does

A coverage map of all 16 DSA patterns shows which you've mastered, which are weak, and which you've never touched. Interviewers pick exactly what you avoided.

4 of 10 patterns attempted

High

Med

None

3Sliding

5Two

1Binary

—

1DFS

—

Focus: Dynamic Programming — 0 problems attempted

Analytics

Know if you're ready. Not just how many you've solved.

Your readiness score combines four signals into one honest number — so you stop guessing and start knowing.

Readiness Score

Four weighted signals, each worth 25 points

live

Consistency

7 of last 14 days active

Difficulty Spread

14 medium/hard of 21 total

Avg Confidence

72% across all solved problems

Revision Discipline

9 problems flagged for review

Score history

+11last 14 days

Feb 19Feb 22Feb 25Feb 28Mar 1Mar 3Today

Good momentum — push harder on medium/hard problems

Problems

Avg conf.

Streak

Focus area: Dynamic Programming

0 problems attempted · weakest pattern by confidence. Review before your next interview.

See your full analytics dashboard

Start retaining today

Stop solving problems
you've already solved.

Install Memoize, solve your next problem, and let the algorithm remember it for you. It takes 2 minutes to set up and zero effort to maintain.

Add to Chrome — Free Open Dashboard

No credit cardManual install via chrome://extensionsGitHub & Google auth

Two Sum

Hash Map

In 15 days

Course Schedule

Topological Sort

Tomorrow

Beautiful Matrix

Dynamic Prog.

In 6 days

your revision queue, scheduled automatically

Solve 200 problems.Remember all 200.

Grinding problems isn't the problem. Forgetting them is.

@keyframes tw-blink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } } @keyframes tw-blink-fade { 0% { opacity: 1; } 60% { opacity: 0; } 80% { opacity: 1; } 100% { opacity: 0; } }

@keyframes tw-blink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } } @keyframes tw-blink-fade { 0% { opacity: 1; } 60% { opacity: 0; } 80% { opacity: 1; } 100% { opacity: 0; } }

@keyframes tw-blink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } } @keyframes tw-blink-fade { 0% { opacity: 1; } 60% { opacity: 0; } 80% { opacity: 1; } 100% { opacity: 0; } }

Zero new habits. Just solve — Memoize handles the rest.

Solve on LeetCode or Codeforces

Rate it honestly. Takes 20 seconds.

Dashboard tells you exactly what to review and when.

Your solve sessions just got a memory.

Auto-captures every accepted solve

Reviews scheduled at the exact moment you'd forget

A single score that tells you if you're ready

See your blind spots before the interviewer does

Know if you're ready. Not just how many you've solved.

Stop solving problemsyou've already solved.

Solve 200 problems.
Remember all 200.

Stop solving problems
you've already solved.