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dsa2 min read

Partition a string into the maximum number of parts where each letter appears in at most one part, using last occurrence mapping.

March 19, 2026Read →

dsa2 min read

Calculate minimum CPU intervals for tasks with cooldown using a greedy formula based on the most frequent task count.

March 19, 2026Read →

dsa1 min read

Find the minimum arrows needed to burst all balloons arranged as intervals using a greedy sort-by-end approach.

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dsa1 min read

Maximize a number by making at most one swap, using a last-occurrence map to find the optimal swap greedily.

March 19, 2026Read →

dsa1 min read

Find a peak element in O(log n) by binary searching on the slope direction — always move toward the higher neighbor.

March 19, 2026Read →

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