upload

type Problem struct {
	Specification string   `toml:"specification"`
	Code          string   `toml:"code"`
	Name          string   `toml:"name"`
	Authors       []string `toml:"authors"`
	Tags          []string `toml:"tags"`
	Type          string   `toml:"type"`
	Time          float64  `toml:"time"`
	Memory        int      `toml:"memory"`
	Difficulty    int      `toml:"difficulty"`
}

type S3Uploader interface {
	Exists(key string) (bool, error)
	Upload(key string, content io.ReadSeeker) error // Change content type to io.Reader
}

type S3UploaderImpl struct {
	// contains filtered or unexported fields
}