Data commit

Task/Text-processing-Max-licenses-in-use/Go/text-processing-max-licenses-in-use.go

@@ -0,0 +1,60 @@
+package main
+
+import (
+    "bufio"
+    "bytes"
+    "fmt"
+    "log"
+    "os"
+)
+
+const (
+    filename   = "mlijobs.txt"
+    inoutField = 1
+    timeField  = 3
+    numFields  = 7
+)
+
+func main() {
+    file, err := os.Open(filename)
+    if err != nil {
+        log.Fatal(err)
+    }
+    defer file.Close()
+    var ml, out int
+    var mlTimes []string
+    in := []byte("IN")
+    s := bufio.NewScanner(file)
+    for s.Scan() {
+        f := bytes.Fields(s.Bytes())
+        if len(f) != numFields {
+            log.Fatal("unexpected format,", len(f), "fields.")
+        }
+        if bytes.Equal(f[inoutField], in) {
+            out--
+            if out < 0 {
+                log.Fatalf("negative license use at %s", f[timeField])
+            }
+            continue
+        }
+        out++
+        if out < ml {
+            continue
+        }
+
+        if out > ml {
+            ml = out
+            mlTimes = mlTimes[:0]
+        }
+        mlTimes = append(mlTimes, string(f[timeField]))
+    }
+    if err = s.Err(); err != nil {
+        log.Fatal(err)
+    }
+
+    fmt.Println("max licenses:", ml)
+    fmt.Println("at:")
+    for _, t := range mlTimes {
+        fmt.Println(" ", t)
+    }
+}