Let ~(r, c)~ denote the cell in row ~r~ and column ~c~ of the grid. We'll first need to find Hawkeye's position ~(R_H, C_H)~. To do so, we can iterate over all ~R \times C~ cells in the grid, and when we encounter a cell ~(r, c)~ with the value H, we can set ~R_H~ to ~r~ and ~C_H~ to ~c~.

From there, we'll need to consider all four possible directions for Hawkeye's shot, simulating how many dead soldiers each of them would result in and then using the maximum of the four values as our answer. To simulate Hawkeye shooting North, we can iterate a variable ~r~ between ~1~ and ~R_H-1~ (inclusive), while counting the number of cells ~(r, C_H)~ with the value C. The other three directions can be handled similarly.