finish day 6

day6.jai

@@ -17,30 +17,103 @@ Operation :: struct {
 
 main :: () {
     content := read_entire_file("day6.input");
-    solve_first(content);
+    // solve_first(content);
+    solve_second(content);
+}
+
+solve_second :: (input: string) {
+    lines := split(input, "\n");
+    num_values_per_operation := lines.count - 1;
+    in_progress_values: [..]string;
+    operations: [..]Operation;
+    for < char_index: 0..lines[0].count - 1 {
+        sb: String_Builder;
+        for line_index: 0..lines.count - 1 {
+            if lines[line_index].count == 0 continue;
+            c := lines[line_index][char_index];
+            if c == {
+                case #char " "; continue;
+                case #char "+"; {
+                    op: Operation;
+                    for s: in_progress_values {
+                        value, success := parse_int(*s);
+                        if success {
+                            array_add(*op.values, value);
+                        }
+                    }
+
+                    s := builder_to_string(*sb);
+                    value, success := parse_int(*s);
+                    if success {
+                        array_add(*op.values, value);
+                    }
+
+                    array_reset_keeping_memory(*in_progress_values);
+                    op.op = .Plus;
+                    array_add(*operations, op);
+                }
+                case #char "*"; {
+                    op: Operation;
+                    for s: in_progress_values {
+                        parse_me := s;
+                        value, success := parse_int(*parse_me);
+                        if success {
+                            array_add(*op.values, value);
+                        }
+                    }
+
+                    s := builder_to_string(*sb);
+                    value, success := parse_int(*s);
+                    if success {
+                        array_add(*op.values, value);
+                    }
+
+                    array_reset_keeping_memory(*in_progress_values);
+                    op.op = .Mult;
+                    array_add(*operations, op);
+                }
+                case;           {
+                    append(*sb, c);
+                }
+            }
+        }
+        if builder_string_length(*sb) != 0 {
+            array_add(*in_progress_values, builder_to_string(*sb));
+        }
+    }
+
+    total := 0;
+    for operations total += evaluate(it);
+
+    print("%\n", total);
 }
 
 solve_first :: (input: string) {
     operations :=  parse_input(input);
     total := 0;
     for operations {
-        result := 0;
-        if it.op == .Plus {
-            for it.values {
-                result += it;
-            }
-        } else {
-            result = 1;
-            for it.values {
-                result *= it;
-            }
-        }
-        total += result;
+        total += evaluate(it);
     }
 
     print("%\n", total);
 }
 
+evaluate :: (operation: Operation) -> int {
+    result := 0;
+    if operation.op == .Plus {
+        for operation.values {
+            result += it;
+        }
+    } else {
+        result = 1;
+        for operation.values {
+            result *= it;
+        }
+    }
+
+    return result;
+}
+
 parse_input :: (input: string) -> [..]Operation {
     result: [..]Operation;
     lines := split(input, #char "\n");
@@ -81,6 +154,10 @@ parse_input :: (input: string) -> [..]Operation {
     return result;
 }
 
+to_string :: (c: *u8) -> string {
+    return .{data=c, count=1};
+}
+
 #import "Basic";
 #import "File";
 #import "Print_Vars";