Index: aoc2024.c
==================================================================
--- aoc2024.c
+++ aoc2024.c
@@ -6,10 +6,11 @@
 #include <string.h>
 #include "aocdailies.h"
 #include "aocutils.h"
 
 /* === aoc202422 =======================================================
+TODO: Part Two
 ===================================================================== */
 static long long unsigned mix(long long unsigned a, long long unsigned b) {
     long long unsigned tmp = a ^ b;
     return tmp;
 }
@@ -35,10 +36,11 @@
     }
     printf("The sum of all 2000th secrets is {%llu}.\n", sum2000);
 }
 
 /* === aoc202417 =======================================================
+TODO: proper (recursive) solution for Part Two
 ===================================================================== */
 
 static unsigned combo(unsigned operand, unsigned long long r[3]) {
     switch (operand) {
         default: fprintf(stderr, "Nope!\n"); exit(EXIT_FAILURE);