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Good morning, Riya

B.Tech CSE · Semester 5 · Roll: 21CS042

Week 8 12-day streak
Overall Score
78%
4% this week
Doubts Solved
142
18 this week
Practice Done
63 Qs
11 today
Accuracy
81%
2% vs last week
Subject performance
Topic mastery
Focus area: Data Structures — Trees & Graphs need more practice.
Weekly activity
Best MonTueWedThuFriSatSun
Smart feedback
Recent sessions
DateTopicSubjectDoubtsScoreStatus
Mar 28Binary TreesDSA488%Good
Mar 27NormalizationDBMS763%Review
Mar 26Process SchedulingOS291%Good
Mar 25Graph TraversalDSA955%Needs work
Mar 24TCP/IP ModelNetworks379%Good

Ask a Doubt

Syllabus-aligned · Step-by-step explanations · Adapts to your level

Sem 5 Syllabus DSA · OS · DBMS · Networks
Clarity AI: Hi Riya! I'm your syllabus-aligned doubt solver. Ask me anything from your Semester 5 subjects — DSA, OS, DBMS, or Networks. You can type your question or upload an image.
What is the time complexity of Dijkstra's algorithm and why?
Clarity AI · Step-by-step:

Dijkstra's Algorithm Complexity

Step 1 — Setup: We maintain a priority queue (min-heap) of vertices. Initially all distances = infinity except source = 0.

Step 2 — Per vertex: Each vertex is extracted from the heap once — O(V log V) total extractions.

Step 3 — Per edge: Each edge is relaxed at most once — O(E log V) for heap updates.

Result: O((V + E) log V) with a binary min-heap. For dense graphs (E ≈ V²), this becomes O(V² log V).
Suggested questions
Session stats
Doubts today
6
Avg clarity
4.8 / 5
Difficulty level

Adapts automatically based on your response patterns.

Recent topics
Dijkstra's AlgorithmDSA
3NF vs BCNFDBMS
Process SchedulingOS
OSI Model LayersNetworks
Practice tip

You've solved 6 DSA doubts today. Try 5 practice problems on graph algorithms to reinforce.

Department Analytics

B.Tech CSE · Semester 5 · 120 students enrolled

March 2025
Class Avg Score
71%
3% from Feb
At-Risk Students
14
2 flagged new
Avg Daily Usage
38 min
6 min this month
Doubts Resolved
2,840
This semester
Score distribution
Subject struggle map
At-risk students
14 flagged
StudentScoreWeak TopicRisk
Arjun Mehra38%DSA – GraphsHigh
Priya Sharma44%DBMS – JoinsHigh
Dev Patel51%OS – MemoryMedium
Sneha Rao53%Networks – RoutingMedium
Karan Singh57%DSA – DPMedium
Alerts
Arjun Mehra — 5 sessions missed
No activity in past 7 days · Sem 5 CSE
Priya Sharma — Score drop 62% to 44%
Significant decline in DBMS · Mar 20–26
DSA — Class avg below 60%
Graph & DP topics need re-teaching
12 students — low practice frequency
Fewer than 3 sessions/week this month
OS topic mastery improving
Class avg up 9% since focused practice
Weekly performance report — March 2025
Auto-generated
WeekAvg ScoreDoubtsAt-RiskTop Weak TopicTrend
Week 5 (Mar 3–9)67%68418Graph Traversal+2%
Week 6 (Mar 10–16)69%71216DBMS Normalization+3%
Week 7 (Mar 17–23)68%69817OS Memory Mgmt-1%
Week 8 (Mar 24–28)71%74614Graph / DP (DSA)+4%