View Compilation Error

498711_0_0_14550.cpp: In function `void dfs(int, double)':
498711_0_0_14550.cpp:18: error: `max' undeclared (first use this function)
498711_0_0_14550.cpp:18: error: (Each undeclared identifier is reported only once for each function it appears in.)
498711_0_0_14550.cpp: At global scope:
498711_0_0_14550.cpp:38: error: `main' must return `int'
498711_0_0_14550.cpp: In function `int main(...)':
498711_0_0_14550.cpp:73: error: `max' undeclared (first use this function)