Sumit G

💻 SWE @ Bad Posture Factory
sometime write in python
code.lift.weight

[Sumit G @DevSumitG]

I just published The Perfect Structure for a Large, Production-Ready FastAPI App https://t.co/oeCkYQwwDt

[Sumit G @DevSumitG]

Day 157 of LeetCode 🧠

Busy day.

Revised Binary Tree Level Order Traversal.
Queue + BFS + level-by-level processing.

Keeping the streak alive.

#LeetCode #Python #DSA

[Sumit G @DevSumitG]

Day 156 of LeetCode 🧠

Number of Provinces (DFS)

Visit city → explore neighbors → mark visited.

Connected components in action.

#LeetCode #Python #DSA

[Sumit G @DevSumitG]

Day 155 of LeetCode 🧠

Max Area of Island (DFS)

Not easy to come up with on my own,
but it felt great when it finally clicked 😄

DFS + area counting + max tracking.

#LeetCode #Python #DSA

[Sumit G @DevSumitG]

Day 154 of LeetCode 🧠

Number of Islands (DFS)

Find land → DFS → mark visited → count island.

Simple pattern, powerful concept.

#LeetCode #Python #DSA

[Sumit G @DevSumitG]

Day 153 of LeetCode 🧠

Graph revision day:

• Flood Fill
• Island Perimeter
• Find if Path Exists in Graph

Interesting takeaway:
Sometimes the state itself can replace a visited set.

#LeetCode #Python #DSA

[Sumit G @DevSumitG]

Day 152 of LeetCode 🧠

Flood Fill (DFS)

DFS + 4 directions + visited tracking.
A great problem for strengthening graph fundamentals.

#LeetCode #Python #DSA

[Sumit G @DevSumitG]

Day 151 of LeetCode 🧠

Shortest Path in Binary Matrix

BFS + 8 directions.
Main catch: knowing when to stop.

#LeetCode #Python #DSA

[Sumit G @DevSumitG]

Day 150 of LeetCode 🧠

542. 01 Matrix

Collect all 0s first → BFS outward.
Classic multi-source BFS pattern.

150 days of showing up 🚀

#LeetCode #Python #DSA

[Sumit G @DevSumitG]

Day 149 of LeetCode 🧠

Number of Islands
Rotting Oranges

Same BFS traversal pattern,
different problem twists.

Visited + directions + queue everywhere.

#LeetCode #Python #DSA

[Sumit G @DevSumitG]

Day 148 of LeetCode 🧠

Employee Importance (BFS)

id → employee map + queue traversal.
BFS patterns keep repeating.

#LeetCode #Python #DSA

[Sumit G @DevSumitG]

Day 147 of LeetCode 🧠

Graph revision day:

• N-ary Tree Depth
• Island Perimeter
• Number of Islands
• Path Exists in Graph
• Number of Provinces

BFS + visited patterns everywhere.

#LeetCode #Python #DSA

[Sumit G @DevSumitG]

Day 146 of LeetCode 🧠

BFS of Graph
Flood Fill

Solved both on my own today 😄

Queue + visited + traversal patterns are finally feeling natural.

#LeetCode #Python #DSA

[Sumit G @DevSumitG]

Day 145 of LeetCode 🧠

Verifying an Alien Dictionary

Compare adjacent words using custom order mapping.
Edge cases matter.

#LeetCode #Python #DSA

[Sumit G @DevSumitG]

Day 144 of LeetCode 🧠

Island Perimeter (DFS)

Traverse grid + check all 4 directions.
Boundary conditions matter a lot.

#LeetCode #Python #DSA

[Sumit G @DevSumitG]

Day 143 of LeetCode 🧠

Word Ladder (BFS)

Pattern graph:
*ot → hot, dot, lot

The hard is hard 😅
Needs more dry runs & practice.

#LeetCode #Python #DSA

[Sumit G @DevSumitG]

Day 142 of LeetCode 🧠

Redundant Connection (DFS)

Add edge → check cycle → return the redundant one.

Cycle detection practice continues.

#LeetCode #Python #DSA

[Sumit G @DevSumitG]

Day 141 of LeetCode 🧠

Course Schedule II (DFS)

Cycle detection + prerequisite graph + output ordering.

Feels good when the solution clicks on your own 😄

#LeetCode #Python #DSA

[Sumit G @DevSumitG]

Day 140 of LeetCode 🧠

Course Schedule (DFS)

Build graph → DFS each course → detect cycles.

Simple idea, tricky execution.

#LeetCode #Python #DSA

[Sumit G @DevSumitG]

Day 139 of LeetCode 🧠

Surrounded Regions (DFS)

Protect border-connected regions first,
then convert remaining O → X.

Good matrix DFS problem.

#LeetCode #Python #DSA

[Sumit G @DevSumitG]

Day 138 of LeetCode 🧠

Pacific Atlantic Water Flow

DFS/BFS both work,
but multi-direction DFS needs more awareness.

Needs revision.

#LeetCode #Python #DSA