better snippet
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2 changed files with 13 additions and 24 deletions
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---
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title: "countGoodNumbers.cpp"
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date: "07/10/2025"
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---
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```cpp
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class Solution {
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public:
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static constexpr long long MOD = 1e9 + 7;
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long long mpow(long long a, long long b, long long mod=MOD) {
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long long ans = 1;
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while (b > 0) {
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if (b & 1) ans = (ans * a) % MOD;
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a = (a * a) % MOD;
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b >>= 1;
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}
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return ans;
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}
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int countGoodNumbers(long long n) {
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long long even = (n + 1) / 2, odd = n / 2;
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return (mpow(5, even) * mpow(4, odd)) % MOD;
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}
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};
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```
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13
src/content/gists/noice.mdx
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13
src/content/gists/noice.mdx
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---
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title: "noice.cc"
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date: "07/10/2025"
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---
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```cpp
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#include <iostream>
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int main() {
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std::cout << "I'm surprised that you found this";
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return 0;
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}
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```
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