Cells in a range on an excel sheet

String

84.2% acceptance

Feb 25, 2026

649

100

A cell (r, c) of an excel sheet is represented as "". You are given a string s = ":" where r1 <= r2 and c1 <= c2. Return the list of cells (x,y) such that r1 <= x <= r2 and c1 <= y <= c2, sorted by columns then rows.

Solution

Rust

Time O(n²)

Space O(n)

LeetCode

solution.rs

impl Solution {
  pub fn cells_in_range(s: String) -> Vec<String> {
    let bytes = s.as_bytes();
    let c1 = bytes[0];
    let r1 = bytes[1];
    let c2 = bytes[3];
    let r2 = bytes[4];
    let mut result = Vec::new();
    for c in c1..=c2 {
      for r in r1..=r2 {
        result.push(format!("{}{}", c as char, r as char));
      }
    }
    result
  }
}