Create Advice.md

Author: bakisama

content/cp/advice/Advice.md

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+---
+title: Advice
+---
+# 🔥 DSA ACCOUNTABILITY GUIDE (WITH LINKS, NO EXCUSES)
+
+## 🧱 DAILY RULE (NON-NEGOTIABLE)
+
+**Every single day must have:**
+
+1. **Learn** (45–60 min)
+    
+2. **Implement** (45–60 min)
+    
+3. **Practice** (60–90 min)
+    
+
+If even **one block is missing → day = invalid**.
+
+---
+
+# 🟢 PHASE 0 — Foundations (8–10 weeks)
+
+### 🎯 Goal
+
+- Strong **C++ + STL**
+    
+- CF comfort: **1200–1300**
+    
+- Start CF contests
+    
+
+---
+
+## Week 1–2: Basic C++ + STL
+
+### Learn (pick ONE per day)
+
+- GFG C++ basics  
+    [https://www.geeksforgeeks.org/cpp/c-plus-plus/](https://www.geeksforgeeks.org/cpp/c-plus-plus/)
+    
+- Apna College C++ (first ~50 videos)  
+    [https://www.youtube.com/playlist?list=PLfqMhTWNBTe0b2nM6JHVCnAkhQRGiZMSJ](https://www.youtube.com/playlist?list=PLfqMhTWNBTe0b2nM6JHVCnAkhQRGiZMSJ)
+    
+- STL Playlist (Luv)  
+    [https://www.youtube.com/playlist?list=PLauivoElc3gh3RCiQA82MDI-gJfXQQVnn](https://www.youtube.com/playlist?list=PLauivoElc3gh3RCiQA82MDI-gJfXQQVnn)
+    
+- Lambda functions  
+    [https://www.geeksforgeeks.org/cpp/lambda-expression-in-c/](https://www.geeksforgeeks.org/cpp/lambda-expression-in-c/)
+    
+
+### Implement (mandatory)
+
+- Write mini programs using:
+    
+    - vector, map, unordered_map
+        
+    - set, multiset
+        
+    - stack, queue, deque
+        
+    - priority_queue
+        
+- Custom comparator + lambda
+    
+
+### Practice
+
+- Codeforces Problemset  
+    [https://codeforces.com/problemset](https://codeforces.com/problemset)  
+    → Difficulty: **800–1000**
+    
+- Create CF account (Day 1)
+    
+
+---
+
+## Week 3–4: Arrays, Strings, Hashing
+
+### Learn
+
+- Arrays (Striver)  
+    [https://www.youtube.com/playlist?list=PLgUwDviBIf0rENwdL0nEH0uGom9no0nyB](https://www.youtube.com/playlist?list=PLgUwDviBIf0rENwdL0nEH0uGom9no0nyB)
+    
+- Strings in C++  
+    [https://www.geeksforgeeks.org/cpp/strings-in-cpp/](https://www.geeksforgeeks.org/cpp/strings-in-cpp/)
+    
+- Hashing (Striver)  
+    [https://www.youtube.com/playlist?list=PLgUwDviBIf0rVwua0kKYlsS_ik_1lyVK](https://www.youtube.com/playlist?list=PLgUwDviBIf0rVwua0kKYlsS_ik_1lyVK)_
+    
+
+### Prefix / Suffix
+
+- CF EDU  
+    [https://codeforces.com/edu/course/2](https://codeforces.com/edu/course/2)
+    
+
+### Difference Array
+
+- Blog  
+    [https://codeforces.com/blog/entry/78762](https://codeforces.com/blog/entry/78762)
+    
+
+### Practice Targets
+
+- 50 × 800
+    
+- 50 × 1000
+    
+- 50 × 1200 (before phase exit)
+    
+
+---
+
+## Week 5–6: Constructive + Greedy
+
+### Learn
+
+- Greedy (Striver)  
+    [https://www.youtube.com/playlist?list=PLgUwDviBIf0rENwdL0nEH0uGom9no0nyB](https://www.youtube.com/playlist?list=PLgUwDviBIf0rENwdL0nEH0uGom9no0nyB)
+    
+
+### Practice (DAILY)
+
+- CF Problemset → tag: **constructive algorithms**
+    
+- **4–5 problems/day**
+    
+
+---
+
+## Week 7–8: STL Mastery
+
+### Learn
+
+- Striver A2Z Sheet (STL section)  
+    [https://takeuforward.org/strivers-a2z-dsa-course/strivers-a2z-dsa-course-sheet-2](https://takeuforward.org/strivers-a2z-dsa-course/strivers-a2z-dsa-course-sheet-2)
+    
+- Policy Based DS  
+    [https://www.geeksforgeeks.org/cpp/policy-based-data-structures-g/](https://www.geeksforgeeks.org/cpp/policy-based-data-structures-g/)
+    
+
+### Practice
+
+- STL Contest  
+    [https://assessment.hackerearth.com/challenges/new/college/luv_youtube_cp_course_contest_3/](https://assessment.hackerearth.com/challenges/new/college/luv_youtube_cp_course_contest_3/)
+    
+- LeetCode (stack/queue/pq – easy → medium)
+    
+
+---
+
+### ✅ Phase 0 Exit Conditions
+
+- 5+ CF contests attempted
+    
+- CF 1200 problems solvable <20 min
+    
+- STL without reference
+    
+
+---
+
+# 🟡 PHASE 1 — Core Algorithms (12 weeks)
+
+### 🎯 Goal
+
+OA-ready, CF **1400 comfort**
+
+---
+
+## Sorting & Searching
+
+### Learn
+
+- Sorting (GFG)  
+    [https://www.geeksforgeeks.org/dsa/sorting-algorithms/](https://www.geeksforgeeks.org/dsa/sorting-algorithms/)
+    
+- Meet in the Middle  
+    [https://www.youtube.com/watch?v=naz_9njI0I0](https://www.youtube.com/watch?v=naz_9njI0I0)  
+    [https://usaco.guide/gold/meet-in-the-middle?lang=cpp](https://usaco.guide/gold/meet-in-the-middle?lang=cpp)
+    
+- Binary Search (Striver)  
+    [https://www.youtube.com/playlist?list=PLgUwDviBIf0pMFMWuuvDNMAkoQFi-h0ZF](https://www.youtube.com/playlist?list=PLgUwDviBIf0pMFMWuuvDNMAkoQFi-h0ZF)
+    
+- CF EDU  
+    [https://codeforces.com/edu/course/2](https://codeforces.com/edu/course/2)
+    
+- Ternary Search (optional)  
+    [https://cp-algorithms.com/num_methods/ternary_search.html](https://cp-algorithms.com/num_methods/ternary_search.html)
+    
+
+### Practice
+
+- 40–50 binary search problems (CF EDU)
+    
+- CF range: **1200–1400**
+    
+
+---
+
+## Bit Manipulation
+
+### Learn
+
+- Striver  
+    [https://www.youtube.com/playlist?list=PLgUwDviBIf0rnqh8QsJaHyIX7KUiaPUv7](https://www.youtube.com/playlist?list=PLgUwDviBIf0rnqh8QsJaHyIX7KUiaPUv7)
+    
+- Galen Colin Streams  
+    [https://www.youtube.com/watch?v=1um-WUyjess](https://www.youtube.com/watch?v=1um-WUyjess)  
+    [https://www.youtube.com/watch?v=UPVoGMZWQMU](https://www.youtube.com/watch?v=UPVoGMZWQMU)
+    
+
+### Practice
+
+- InterviewBit  
+    [https://www.interviewbit.com/courses/programming/bit-manipulation/](https://www.interviewbit.com/courses/programming/bit-manipulation/)
+    
+
+---
+
+## Number Theory
+
+### Learn
+
+- CodeNCode Playlist  
+    [https://www.youtube.com/playlist?list=PL5DyztRVgtRWblnyEHtajWijQffrfwLz6](https://www.youtube.com/playlist?list=PL5DyztRVgtRWblnyEHtajWijQffrfwLz6)
+    
+
+### Practice
+
+- CF (math tag)
+    
+- CSES  
+    [https://cses.fi/problemset/](https://cses.fi/problemset/)
+    
+
+---
+
+## Two Pointers & Sliding Window
+
+### Learn
+
+- Striver  
+    [https://www.youtube.com/playlist?list=PLgUwDviBIf0q7vrFA_HEWcqRqMpCXzYAL](https://www.youtube.com/playlist?list=PLgUwDviBIf0q7vrFA_HEWcqRqMpCXzYAL)
+    
+
+### Practice
+
+- LeetCode + CF EDU
+    
+- 30–40 problems each
+    
+
+---
+
+# 🔵 PHASE 2 — Recursion & DP (14–16 weeks)
+
+⚠️ **Tabulation only. No Striver DP solutions.**
+
+### Learn
+
+- Recursion / Backtracking  
+    [https://www.youtube.com/playlist?list=PLgUwDviBIf0rGlzIn_7rsaR2FQ5e6ZOL9](https://www.youtube.com/playlist?list=PLgUwDviBIf0rGlzIn_7rsaR2FQ5e6ZOL9)
+    
+- DP (Vivek Gupta)  
+    [https://www.youtube.com/playlist?list=PLqf9emQRQrnKA_EeveiXQj_uP25w8_5qL](https://www.youtube.com/playlist?list=PLqf9emQRQrnKA_EeveiXQj_uP25w8_5qL)
+    
+- TLE Eliminator DP  
+    [https://www.youtube.com/playlist?list=PLcXpkI9A-RZI-xF76L0sZq_u-k_yHz8pd](https://www.youtube.com/playlist?list=PLcXpkI9A-RZI-xF76L0sZq_u-k_yHz8pd)
+    
+
+### Practice
+
+- CSES  
+    [https://cses.fi/problemset/](https://cses.fi/problemset/)
+    
+- AtCoder DP  
+    [https://atcoder.jp/contests/dp](https://atcoder.jp/contests/dp)
+    
+- DP Sheet  
+    [https://docs.google.com/document/d/19IeItjgoFmrXlJ6mFQIZi3V-LOUSkAOc1MkJo69uyO8/edit](https://docs.google.com/document/d/19IeItjgoFmrXlJ6mFQIZi3V-LOUSkAOc1MkJo69uyO8/edit)
+    
+
+---
+
+# 🟣 PHASE 3 — Graphs & Trees
+
+### Learn
+
+- Graphs (Striver)  
+    [https://www.youtube.com/playlist?list=PLgUwDviBIf0oE3gA41TKO2H5bHpPd7fzn](https://www.youtube.com/playlist?list=PLgUwDviBIf0oE3gA41TKO2H5bHpPd7fzn)
+    
+- DSU  
+    [https://www.youtube.com/playlist?list=PLqf9emQRQrnIQ3DkkyBNGe1s4l3HqMqrz](https://www.youtube.com/playlist?list=PLqf9emQRQrnIQ3DkkyBNGe1s4l3HqMqrz)
+    
+
+### Trees
+
+- [https://www.youtube.com/watch?v=nzF_9bjDzdc](https://www.youtube.com/watch?v=nzF_9bjDzdc)
+    
+- [https://www.youtube.com/watch?v=m8qXEz1Xe8w](https://www.youtube.com/watch?v=m8qXEz1Xe8w)
+    
+- [https://www.youtube.com/watch?v=o9hWO52bxI4](https://www.youtube.com/watch?v=o9hWO52bxI4)
+    
+- Tree DP  
+    [https://www.youtube.com/playlist?list=PLb3g_Z8nEv1j_BC-fmZWHFe6jmU_zv-8s](https://www.youtube.com/playlist?list=PLb3g_Z8nEv1j_BC-fmZWHFe6jmU_zv-8s)
+    
+
+### Advanced
+
+- Binary Lifting  
+    [https://usaco.guide/plat/binary-jump?lang=cpp](https://usaco.guide/plat/binary-jump?lang=cpp)  
+    [https://www.youtube.com/playlist?list=PL-Jc9J83PIiGC6uQ2CjMhSaWAcmjbAQfp](https://www.youtube.com/playlist?list=PL-Jc9J83PIiGC6uQ2CjMhSaWAcmjbAQfp)
+    
+- DP on Graphs  
+    [https://codeforces.com/blog/entry/95084](https://codeforces.com/blog/entry/95084)
+    
+- USACO Guide  
+    [https://usaco.guide/plat](https://usaco.guide/plat)
+    
+
+---
+
+# 🟠 PHASE 4 — Interview DS
+
+- Linked List  
+    [https://www.youtube.com/playlist?list=PLgUwDviBIf0rAuz8tVcM0AymmhTRsfaLU](https://www.youtube.com/playlist?list=PLgUwDviBIf0rAuz8tVcM0AymmhTRsfaLU)
+    
+- Trees / BST  
+    [https://www.youtube.com/playlist?list=PLkjdNRgDmcc0Pom5erUBU4ZayeU9AyRRu](https://www.youtube.com/playlist?list=PLkjdNRgDmcc0Pom5erUBU4ZayeU9AyRRu)
+    
+- Tries  
+    [https://www.youtube.com/playlist?list=PLgUwDviBIf0pcIDCZnxhv0LkHf5KzG9zp](https://www.youtube.com/playlist?list=PLgUwDviBIf0pcIDCZnxhv0LkHf5KzG9zp)
+    
+- Practice  
+    [https://www.interviewbit.com/](https://www.interviewbit.com/)
+    
+
+---
+
+# 🔴 PHASE 5 — Advanced (Optional)
+
+- String Algorithms  
+    [https://www.youtube.com/playlist?list=PL5DyztRVgtRWVqLox_K8lrWZCclxzHzLD](https://www.youtube.com/playlist?list=PL5DyztRVgtRWVqLox_K8lrWZCclxzHzLD)
+    
+- Fenwick Tree  
+    [https://www.youtube.com/watch?v=Qe8qRhz3lzQ](https://www.youtube.com/watch?v=Qe8qRhz3lzQ)
+    
+- AVL Tree  
+    [https://www.geeksforgeeks.org/dsa/introduction-to-avl-tree/](https://www.geeksforgeeks.org/dsa/introduction-to-avl-tree/)
+    
+- Red Black Tree  
+    [https://www.geeksforgeeks.org/dsa/introduction-to-red-black-tree/](https://www.geeksforgeeks.org/dsa/introduction-to-red-black-tree/)
+    
+- Profile DP  
+    [https://codeforces.com/blog/entry/59282](https://codeforces.com/blog/entry/59282)
+    
+- Knuth Optimization  
+    [https://usaco.guide/adv/dp-more?lang=cpp](https://usaco.guide/adv/dp-more?lang=cpp)
+    
+- Catalan  
+    [https://usaco.guide/adv/catalan?lang=cpp](https://usaco.guide/adv/catalan?lang=cpp)
+    
+
+---
+
+# 🧪 OA PRACTICE (IMPORTANT)
+
+- InterviewBit Contests  
+    [https://www.interviewbit.com/contests/](https://www.interviewbit.com/contests/)
+    
+- Aryan Mittal Hard Sheet  
+    [https://codewitharyan.com/cwa-sheet/practice-problems](https://codewitharyan.com/cwa-sheet/practice-problems)
+    
+- LeetCode Special Sheet  
+    [https://leetcode.com/problem-list/27eor2ae/](https://leetcode.com/problem-list/27eor2ae/)
+    
+- Mock OA  
+    [https://share.google/MvCmHaGn53YueO53K](https://share.google/MvCmHaGn53YueO53K)
+    
+
+---
+
+If you want next:
+
+- 📋 **Notion daily tracker**
+    
+- 📆 **Exact day-by-day calendar**
+    
+- ⚡ **90-day aggressive sprint**
+    
+- 🎯 **OA-only fast-track**
+    
+
+Just tell me which one — and how many hours/day you can give.