strstr

1 files changed, 35 insertions, 0 deletions

diff --git a/src/2015/day5/aoc.cpp b/src/2015/day5/aoc.cpp
index 1c33c66..d3f310b 100644
--- a/src/2015/day5/aoc.cpp
+++ b/src/2015/day5/aoc.cpp
@@ -1,5 +1,40 @@
 #include "aoc.h"
+#include <algorithm>
 
 namespace aoc2015 {
 
+int count_vowels(line_view lv, const char* vowels) {
+  ascii_count ac{lv};
+  int total = 0;
+  per_char(vowels, [&ac, &total](char c) {
+    total += ac[c];
+    return true;
+  });
+  return total;
 }
+
+bool is_nice(line_view lv, int repeated) {
+  const char* p = lv.line;
+  while (p + repeated < lv.line + lv.length) {
+    if (is_repeated(p, p + repeated)) {
+      return true;
+    } else {
+      p++;
+    }
+  }
+  return false;
+}
+
+bool is_nice(line_view lv, const char* disallowed[]) {
+  size_t size = sizeof(disallowed) / sizeof(*disallowed);
+  if (std::any_of(disallowed, disallowed + size, [&lv](const char* s) -> bool { return lv.contains(s); })) {
+    return false;
+  }
+  return true;
+}
+
+/*
+int day5(line_view) {}
+*/
+
+} // namespace aoc2015