Added AOC 2022 day 03

www/statics/aoc/2022/03_solution-2.nim

@@ -0,0 +1,32 @@
+import std/strutils
+import std/sequtils
+
+proc run03_2(): string =
+    const input = staticRead"../input/day03.txt"
+
+    var res = 0
+
+    let lines = splitLines(input).filter(proc(p: string): bool = p != "")
+
+    for lineSet in lines.distribute(int(lines.len/3)):
+
+        let line1 = lineSet[0]
+        let line2 = lineSet[1]
+        let line3 = lineSet[2]
+
+        let badge = line1.toSeq().filter(proc(p: char): bool = line2.contains(p) and line3.contains(p))[0]
+
+        let prio = if int(badge) >= int('a'): int(badge) - int('a') + 1 else: int(badge) - int('A') + 27
+
+        # echo badge, " : ", prio
+
+        res += prio
+
+    return intToStr(res)
+
+
+when not defined(js):
+    echo run03_2()
+else:
+    proc js_run03_2(): cstring {.exportc.} =
+        return cstring(run03_2())