Added AOC 2022 day 02

www/statics/aoc/2022/02_solution-1.nim

@@ -0,0 +1,66 @@
+import std/strutils
+
+const ROCK = 0
+const PAPE = 1
+const SCIS = 2
+
+proc get_rps_winner(m1: int, m2: int): int =
+    if m1 == ROCK and m2 == ROCK:
+        return 0
+    if m1 == ROCK and m2 == PAPE:
+        return 2
+    if m1 == ROCK and m2 == SCIS:
+        return 1
+
+    if m1 == PAPE and m2 == ROCK:
+        return 1
+    if m1 == PAPE and m2 == PAPE:
+        return 0
+    if m1 == PAPE and m2 == SCIS:
+        return 2
+
+    if m1 == SCIS and m2 == ROCK:
+        return 2
+    if m1 == SCIS and m2 == PAPE:
+        return 1
+    if m1 == SCIS and m2 == SCIS:
+        return 0
+
+    return -1
+    
+proc run02_1(): string =
+    const input = staticRead"../input/day02.txt"
+
+    var score = 0
+
+    for line in splitLines(input):
+        if line == "":
+            continue
+
+        let move_elve = int(line[0]) - int('A')
+        let move_me   = int(line[2]) - int('X')
+
+        let delta1 = (move_me + 1)
+        var delta2 = 0
+
+        let winner = get_rps_winner(move_elve, move_me)
+
+        if winner == 0:
+            delta2 = 3 # draw
+        elif winner == 1:
+            delta2 = 0 # elve win
+        elif winner == 2:
+            delta2 = 6 # me win
+
+        # echo line , "  ->  " , move_elve, "|", move_me, " -> ", winner, " || ", score, " + ", delta1, " + ", delta2
+
+        score += delta1
+        score += delta2
+
+    return intToStr(score)
+
+when not defined(js):
+    echo run02_1()
+else:
+    proc js_run02_1(): cstring {.exportc.} =
+        return cstring(run02_1())