diff --git a/adventofcode/2021/day/11/dumbo_octopus_bigger_input_gen.cpp b/adventofcode/2021/day/11/dumbo_octopus_bigger_input_gen.cpp
deleted file mode 100644
index f350c46..0000000
--- a/adventofcode/2021/day/11/dumbo_octopus_bigger_input_gen.cpp
+++ /dev/null
@@ -1,15 +0,0 @@
-#include <cstdlib>
-#include <ctime>
-#include <iostream>
-
-int main() {
-    std::srand(static_cast<unsigned int>(std::time(nullptr)));
-    constexpr int R = 30;
-    constexpr int C = 60;
-    for (int r = 0; r < R; r++) {
-        for (int c = 0; c < C; c++) {
-            std::cout << std::rand() % 10;
-        }
-        std::cout << '\n';
-    }
-}