View Compilation Error

0_0_15263810_12574.c
0_0_15263810_12574.c(9) : error C2061: 语法错误: 标识符“visit”
0_0_15263810_12574.c(9) : error C2059: 语法错误:“;”
0_0_15263810_12574.c(9) : error C3409: 不允许空特性块
0_0_15263810_12574.c(9) : error C2143: 语法错误 : 缺少“]”(在“常量”的前面)
0_0_15263810_12574.c(18) : error C2061: 语法错误: 标识符“dfs”
0_0_15263810_12574.c(18) : error C2059: 语法错误:“;”
0_0_15263810_12574.c(18) : error C2059: 语法错误:“类型”
0_0_15263810_12574.c(43) : error C2065: “visit”: 未声明的标识符
0_0_15263810_12574.c(43) : error C2065: “false”: 未声明的标识符