Day 23 of 56Wednesday 4 NovemberDP

2D DP

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4 remaining

Coding dp

LC 62. Grid DP. Rolling array. Obstacles follow-up (LC 63) if fast.

Study

Coding dp

LC 72. Three transitions. Fill the first row/col by hand before code.

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Coding dp

LC 1143. Contrast with substring. Recover the string if asked.

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Estimation

Raw bytes, indexes (~2×), replicas, and disk vs memory working set.

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