CF1455B

Author: EndlessCheng

main/1400-1499/1455B.go

@@ -0,0 +1,29 @@
+package main
+
+import (
+	"bufio"
+	. "fmt"
+	"io"
+)
+
+// github.com/EndlessCheng/codeforces-go
+func CF1455B(_r io.Reader, _w io.Writer) {
+	in := bufio.NewReader(_r)
+	out := bufio.NewWriter(_w)
+	defer out.Flush()
+
+	var T, x int
+	for Fscan(in, &T); T > 0; T-- {
+		Fscan(in, &x)
+		k := 0
+		for ; x > 0; x -= k {
+			k++
+		}
+		if x == -1 {
+			k++
+		}
+		Fprintln(out, k)
+	}
+}
+
+//func main() { CF1455B(os.Stdin, os.Stdout) }

main/1400-1499/1455B_test.go

@@ -0,0 +1,27 @@
+package main
+
+import (
+	"github.com/EndlessCheng/codeforces-go/main/testutil"
+	"testing"
+)
+
+// https://codeforces.com/problemset/problem/1455/B
+// https://codeforces.com/problemset/status/1455/problem/B
+func TestCF1455B(t *testing.T) {
+	// just copy from website
+	rawText := `
+inputCopy
+5
+1
+2
+3
+4
+5
+outputCopy
+1
+3
+2
+3
+4`
+	testutil.AssertEqualCase(t, rawText, 0, CF1455B)
+}