day-01/benchmark

@@ -2,14 +2,5 @@ goos: linux
 goarch: amd64
 pkg: github.com/onyx-and-iris/aoc2024/day-01
 cpu: Intel(R) Core(TM) i7-8700K CPU @ 3.70GHz
-BenchmarkMain-12    	1000000000	         0.001576 ns/op
-BenchmarkMain-12    	1000000000	         0.001731 ns/op
-BenchmarkMain-12    	1000000000	         0.001616 ns/op
-BenchmarkMain-12    	1000000000	         0.001597 ns/op
-BenchmarkMain-12    	1000000000	         0.001559 ns/op
-BenchmarkMain-12    	1000000000	         0.001657 ns/op
-BenchmarkMain-12    	1000000000	         0.001542 ns/op
-BenchmarkMain-12    	1000000000	         0.001561 ns/op
-BenchmarkMain-12    	1000000000	         0.001574 ns/op
-BenchmarkMain-12    	1000000000	         0.001582 ns/op
-ok  	github.com/onyx-and-iris/aoc2024/day-01	0.126s
+BenchmarkMain-12    	1000000000	         0.001628 ns/op
+ok  	github.com/onyx-and-iris/aoc2024/day-01	0.015s

day-01/internal/two/solve.go

@@ -32,26 +32,27 @@ func Solve() (int, error) {
 			continue
 		}
 
-		for i, n := range right[indx:] {
+		var occurrences int
+		for _, n := range right[indx:] {
 			if n > k {
-				similarity += k * v * i
 				break
 			}
+			occurrences++
 		}
+		similarity += k * v * occurrences
 	}
 
 	return similarity, nil
 }
 
 func parseLines(r io.Reader) (map[int]int, []int, error) {
-	left := make(map[int]int)
-	right := []int{}
+	var left map[int]int = make(map[int]int)
+	var right []int
 
 	scanner := bufio.NewScanner(r)
 	for scanner.Scan() {
 		nums := reNums.FindAllString(scanner.Text(), -1)
-
-		left[util.MustConv(nums[0])]++
+		left[util.MustConv(nums[0])] = left[util.MustConv(nums[0])] + 1
 		right = util.InsertSorted(right, util.MustConv(nums[1]))
 	}
 

day-01/makefile

@@ -8,7 +8,7 @@ EXE := $(BIN_DIR)/$(program)
 
 .DEFAULT_GOAL := build
 
-.PHONY: fmt vet build bench clean
+.PHONY: fmt vet build clean
 fmt:        
 	$(GO) fmt ./...
 
@@ -18,9 +18,6 @@ vet: fmt
 build: vet | $(BIN_DIR)
 	$(GO) build -o $(EXE) .
 
-bench:
-	$(GO) test . -test.count=10 -bench=. > benchmark
-
 $(BIN_DIR):
 	@mkdir -p $@
 

scaffold.sh

@@ -21,7 +21,7 @@ EXE := \$(BIN_DIR)/\$(program)
 
 .DEFAULT_GOAL := build
 
-.PHONY: fmt vet build bench clean
+.PHONY: fmt vet build clean
 fmt:        
 	\$(GO) fmt ./...
 
@@ -31,9 +31,6 @@ vet: fmt
 build: vet | \$(BIN_DIR)
 	\$(GO) build -o \$(EXE) ./\$(SRC_DIR)
 
-bench:
-	\$(GO) test . -test.count=10 -bench=. > benchmark
-
 \$(BIN_DIR):
 	@mkdir -p \$@