From 3ce3a813e312bc61455dd73f32d6ae13bdf78c35 Mon Sep 17 00:00:00 2001
From: Thomas Schmucker <ts@its1.de>
Date: Thu, 4 Jan 2024 13:37:37 +0100
Subject: branchless solution

---
 2020/src/day02.cpp | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

(limited to '2020/src/day02.cpp')

diff --git a/2020/src/day02.cpp b/2020/src/day02.cpp
index d7e28f1..cb70054 100644
--- a/2020/src/day02.cpp
+++ b/2020/src/day02.cpp
@@ -30,9 +30,7 @@ part1(vector<tuple<long, long, char, string>>& data)
 	long sum = 0;
 	for ( const auto& [min, max, chr, password]: data ) {
 		const auto amount = count(password.begin(), password.end(), chr);
-		if ( min <= amount && amount <= max ) {
-			++sum;
-		}
+		sum += static_cast<long>(min <= amount && amount <= max);
 	}
 	cout << sum << endl;
 }
@@ -42,9 +40,7 @@ part2(vector<tuple<long, long, char, string>>& data)
 {
 	long sum = 0;
 	for ( const auto& [min, max, chr, password]: data ) {
-		if ( (password[size_t(min - 1)] == chr) ^ (password[size_t(max - 1)] == chr) ) {
-			++sum;
-		}
+		sum += ((password[size_t(min - 1)] == chr) ^ (password[size_t(max - 1)] == chr));
 	}
 	cout << sum << endl;
 }
-- 
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