View Compilation Error

0_0_25172699_5545.cpp:1:1: error: 'head' does not name a type
 head={}
 ^
0_0_25172699_5545.cpp:2:1: error: 'head' does not name a type
 head['User-Agent']='Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/53.0.2785.104 Safari/537.36 Core/1.53.3226.400 QQBrowser/9.6.11681.400'
 ^