From 7c60dee83b436e8e8a667bf9f191beced8de4fc3 Mon Sep 17 00:00:00 2001 From: Jack Sangdahl Date: Mon, 10 Mar 2025 00:36:13 -0600 Subject: chore: move cpp and rust code to directory --- other/restore_array.cpp | 37 +++++++++++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+) create mode 100644 other/restore_array.cpp (limited to 'other/restore_array.cpp') diff --git a/other/restore_array.cpp b/other/restore_array.cpp new file mode 100644 index 0000000..4f4a59a --- /dev/null +++ b/other/restore_array.cpp @@ -0,0 +1,37 @@ +// 1416. Restore The Array +#include "leetcode.h" + +/* + * a progamme was supposed to print an array of integers. the programme forgot + * to print whitespace and the array is printing as a string of digits 's' and + * all we know is that all integers in the array were in the range [1, k] and + * there are no leading zeros in the array. given the string 's' and the integer + * 'k', return the number of possible arrays that can be printed as 's' using + * the mentioned programme. return modulo 10^9+7 + */ + +class Solution { +public: + int numberOfArrays(string s, int k) { + vector dp(s.size() + 1); + dp[s.size()] = 1; + for (int i = s.size() - 1; i >= 0; --i) { + if (s[i] == '0') + continue; + for (long sz = 1, n = 0; i + sz <= s.size(); ++sz) { + n = n * 10 + s[i + sz - 1] - '0'; + if (n > k) + break; + dp[i] = (dp[i] + dp[i + sz]) % 1000000007; + } + } + return dp[0]; + } +}; + +int main() { + Solution obj; + printf("%d\n", obj.numberOfArrays("1000", 10000)); // expect: 1 + printf("%d\n", obj.numberOfArrays("1000", 10)); // expect: 0 + printf("%d\n", obj.numberOfArrays("1317", 2000)); // expect: 8 +} -- cgit v1.2.3