View Compilation Error

0_0_8789476_5884.cpp: In function `void dfs(int, int, int)':
0_0_8789476_5884.cpp:15: error: pointer to a function used in arithmetic
0_0_8789476_5884.cpp:15: error: pointer to a function used in arithmetic
0_0_8789476_5884.cpp:15: error: ISO C++ forbids comparison between pointer and integer
0_0_8789476_5884.cpp:20: error: pointer to a function used in arithmetic
0_0_8789476_5884.cpp:20: error: pointer to a function used in arithmetic
0_0_8789476_5884.cpp:20: error: invalid conversion from `time_t (*)(time_t*)' to `int'
0_0_8789476_5884.cpp:20: error:   initializing argument 2 of `void dfs(int, int, int)'
0_0_8789476_5884.cpp: In function `int main()':
0_0_8789476_5884.cpp:36: error: pointer to a function used in arithmetic
0_0_8789476_5884.cpp:36: error: pointer to a function used in arithmetic