SEGV fix

src/days/05/Day05.cpp

@@ -51,9 +51,12 @@ vector<Stack> Day05::parseStacks(){
 	for (int i = 0; i < stackCount; i++){
 		parsed.emplace_back();
 		int index = 1 + 4 * i;
+
 		for (size_t line = endIndex - 2; input[line].size() > index && input[line][index] != ' '; line--){
 			Crate crate = input[line][index];
 			parsed[i].push_back(crate);
+			if (line == 0)
+				break;
 		}
 	}