From d343a3b18dbaca9297d4f7b2280c4a16f0a5c8aa Mon Sep 17 00:00:00 2001 From: jack <0x6A73@pm.me> Date: Fri, 14 Jun 2024 13:13:15 -0600 Subject: initial --- ways_to_paint_nx3_grid.cpp | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) create mode 100644 ways_to_paint_nx3_grid.cpp (limited to 'ways_to_paint_nx3_grid.cpp') diff --git a/ways_to_paint_nx3_grid.cpp b/ways_to_paint_nx3_grid.cpp new file mode 100644 index 0000000..b661af8 --- /dev/null +++ b/ways_to_paint_nx3_grid.cpp @@ -0,0 +1,20 @@ +#include "leetcode.h" + +class Solution { +public: + int numOfWays(int n) { + long a = 6, b = 6, c, d, mod = 1e9 + 7; + for (int i = 1; i < n; ++i) { + c = a * 3 + b * 2; + d = a * 2 + b * 2; + a = c % mod; + b = d % mod; + } + return (a + b) % mod; + } +}; + +int main() { + Solution obj; + cout << obj.numOfWays(1); +} -- cgit v1.2.3