refactor: fix initialization of minTime and maxTime variables

tools/blocktime/main.go

@@ -77,20 +77,31 @@ Block Time (from %d to %d):
 // analyzeBlockTimes returns the average, min, max, and standard deviation of the block times.
 // Units are in milliseconds.
 func analyzeBlockTimes(times []time.Time) (float64, float64, float64, float64) {
-	numberOfObservations := len(times) - 1
-	totalTime := times[numberOfObservations].Sub(times[0])
-	averageTime := float64(totalTime.Milliseconds()) / float64(numberOfObservations)
-	variance, minTime, maxTime := float64(0), float64(0), float64(0)
-	for i := 0; i < numberOfObservations; i++ {
-		diff := float64(times[i+1].Sub(times[i]).Milliseconds())
-		if minTime == 0 || diff < minTime {
-			minTime = diff
-		}
-		if maxTime == 0 || diff > maxTime {
-			maxTime = diff
-		}
-		variance += math.Pow(averageTime-diff, 2)
-	}
-	stddev := math.Sqrt(variance / float64(numberOfObservations))
-	return averageTime, minTime, maxTime, stddev
+    numberOfObservations := len(times) - 1
+    totalTime := times[numberOfObservations].Sub(times[0])
+    averageTime := float64(totalTime.Milliseconds()) / float64(numberOfObservations)
+
+    // Initialize minTime and maxTime correctly
+    minTime := math.MaxFloat64
+    maxTime := -math.MaxFloat64
+
+    variance := float64(0)
+
+    for i := 0; i < numberOfObservations; i++ {
+        diff := float64(times[i+1].Sub(times[i]).Milliseconds())
+
+        // Calculate the minimum and maximum block times
+        if diff < minTime {
+            minTime = diff
+        }
+        if diff > maxTime {
+            maxTime = diff
+        }
+
+        variance += math.Pow(averageTime-diff, 2)
+    }
+
+    stddev := math.Sqrt(variance / float64(numberOfObservations))
+    return averageTime, minTime, maxTime, stddev
 }
+