MANILA, Philippines — Typhoon Yinxing battered the northern Philippines with floods and landslides before blowing away from the country on Friday, leaving two airports damaged and aggravating a calamity caused by back-to-back storms that hit in recent weeks. There were no immediate reports of casualties from Yinxing, the 13th major storm to hit the disaster-prone Southeast Asian archipelago this year. The typhoon, locally called Marce, was last tracked over the South China Sea about 100 kilometers west of the northern Philippine province of Ilocos Norte with sustained winds of up to 150 kph and gusts of up to 205 kph