Added AOC 2022 day 03

www/statics/aoc/2022/03_solution-1.nim

@@ -0,0 +1,30 @@
+import std/strutils
+import std/sequtils
+
+proc run03_1(): string =
+    const input = staticRead"../input/day03.txt"
+
+    var res = 0
+
+    for line in splitLines(input):
+        if line == "":
+            continue
+
+        let comp1 = line.substr(0, int(line.len/2))
+        let comp2 = line.substr(int(line.len/2))
+
+        let dup = comp1.toSeq().filter(proc(p: char): bool =  comp2.contains(p))[0]
+        let prio = if int(dup) >= int('a'): int(dup) - int('a') + 1 else: int(dup) - int('A') + 27
+
+        #echo dup, " : ", prio
+
+        res += prio
+
+    return intToStr(res)
+
+
+when not defined(js):
+    echo run03_1()
+else:
+    proc js_run03_1(): cstring {.exportc.} =
+        return cstring(run03_1())