update

go.mod

@@ -0,0 +1,23 @@
+module codeforces-go
+
+go 1.17
+
+require (
+	github.com/emirpasic/gods v1.12.0
+	github.com/levigross/grequests v0.0.0-20190908174114-253788527a1a
+	github.com/skratchdot/open-golang v0.0.0-20200116055534-eef842397966
+	github.com/stretchr/testify v1.7.0
+	github.com/wcharczuk/go-chart v2.0.1+incompatible
+	golang.org/x/net v0.0.0-20210917221730-978cfadd31cf
+)
+
+require (
+	github.com/blend/go-sdk v1.20210918.2 // indirect
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/golang/freetype v0.0.0-20170609003504-e2365dfdc4a0 // indirect
+	github.com/google/go-querystring v1.0.0 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
+	golang.org/x/image v0.0.0-20210628002857-a66eb6448b8d // indirect
+	gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 // indirect
+	gopkg.in/yaml.v3 v3.0.0-20200615113413-eeeca48fe776 // indirect
+)