Full Stack Dev & Competitive Programmer
ReactJS Dev @KodezenTeam || 1289 rated @Codeforces
• https://t.co/ETenrDcGaR
• https://t.co/eCrsVlKeHGasifhossain.netlify.app Sol IIIJoined March 2024
Tried #CF "24A. Ring Road" today
Trick:
- Build graph with two edges per road (one free, one with cost).
- DFS around the cycle, add costs depending on chosen direction.
- Answer = min(clockwise, counter-clockwise).
problem: codeforces.com/contest/24/pro…#Codeforces#CP#Graphs
Solved CF – Rudolf and Snowflakes (simple)
Insights:
- Snowflake vertex counts follow a geometric sum: (k^{m+1}-1)/(k-1)
- Not every n is possible (e.g., 6 ❌, 13 ✅)
- Precompute all valid values ≤ 1e6 using different k
probblem: codeforces.com/problemset/pro…#Codeforces#CP#DSA
Solved CF 2130B. Pathless
Observation:
- Alice can always loop back & forth to reach sums.
- Only blocked if s < sum(a) or s == sum(a)+1.
- Else, impossible → -1.
Rearrangement trick → put 0s, then 2s, then 1s.
Problem link: codeforces.com/problemset/pro…#Codeforces#CP#CPP
Solved LeetCode "Word Search"!
Used DFS with backtracking:
- For each cell, try to match the word recursively in 4 directions
- Mark visited cells in-place (with #) to avoid revisiting
- Restore cell with backtracking
problem: leetcode.com/problems/word-…#LeetCode#Coding#DFS
Solved "Is Graph Bipartite?" on LeetCode!
Insight:
- Used DFS with coloring
- Assign colors (+1, -1) to nodes.
- If a neighbor has the same color, it's not bipartite.
- Handle disconnected graphs by checking all nodes.
problem: leetcode.com/problems/is-gr…#LeetCode#GraphTheory
I developed a Chrome extension to easily browse and jump to your ChatGPT messages.
Ideal for anyone who needs to review past messages quickly
🔗 GitHub link: github.com/its-asif/ChatG…
I’d love to hear your thoughts & suggestions for improvements!
#ChromeExtension#ChatGPT
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