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Grokking the Coding Interview Patterns in C++

Solution: Minimum Path Sum

Explore how to solve the Minimum Path Sum problem by applying dynamic programming in C++. Understand how to update the grid in place to find the least costly path from the top-left to bottom-right cell by moving only right or down. This lesson helps develop efficient problem-solving skills using optimal space and time complexity.

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Statement

You are given an m × n grid containing non-negative integers. Your task is to find a path from the top-left cell to the bottom-right cell that minimizes the sum of the values along the path. At each step, you may move only right or down.

Constraints:

  • m == grid.length

  • n == grid[i].length ...