From 744f3716db1a2504b730a3f412be1b0516f61450 Mon Sep 17 00:00:00 2001 From: Jack Sangdahl Date: Tue, 4 Mar 2025 21:17:37 -0700 Subject: 2579. count total number of coloured cells --- count_total_coloured_cell.c | 17 +++++++++++++++++ count_total_coloured_cell.py | 24 ++++++++++++++++++++++++ 2 files changed, 41 insertions(+) create mode 100644 count_total_coloured_cell.c create mode 100644 count_total_coloured_cell.py diff --git a/count_total_coloured_cell.c b/count_total_coloured_cell.c new file mode 100644 index 0000000..4e86d1b --- /dev/null +++ b/count_total_coloured_cell.c @@ -0,0 +1,17 @@ +// 2579. Count Total Number of Colored Cells +#include "leetcode.h" + +/* + * there exists an infinitely large two-dimensional grid of uncoloured unit + * cells. you are given a positive integer 'n', indicating that you must do the + * following routine for 'n' minutes: at the first minute, colour any arbitrary + * unit cell blue, and every minute thereafter, colour blue every uncoloured + * cell that touches a blue cell. + */ + +long long coloredCells(int n) { return 2L * n * (n - 1) + 1; } + +int main() { + printf("%lld\n", coloredCells(1)); // expect: 1 + printf("%lld\n", coloredCells(2)); // expect: 5 +} diff --git a/count_total_coloured_cell.py b/count_total_coloured_cell.py new file mode 100644 index 0000000..bcff9a9 --- /dev/null +++ b/count_total_coloured_cell.py @@ -0,0 +1,24 @@ +# 2579. Count Total Number of Colored Cells + +""" +there exists an infinitely large two-dimensional grid of uncoloured unit +cells. you are given a positive integer 'n', indicating that you must do the +following routine for 'n' minutes: at the first minute, colour any arbitrary +unit cell blue, and every minute thereafter, colour blue every uncoloured +cell that touches a blue cell. +""" + + +class Solution(object): + def coloredCells(self, n): + """ + :type n: int + :rtype: int + """ + return 1 + 4 * sum(range(n)) + + +if __name__ == "__main__": + obj = Solution() + print(obj.coloredCells(n=1)) + print(obj.coloredCells(n=2)) -- cgit v1.2.3