View Compilation Error

58658_0_9686.cpp:5: error: size of array `g' is too large
58658_0_9686.cpp: In function `int dfs(int)':
58658_0_9686.cpp:13: error: `g' undeclared (first use this function)
58658_0_9686.cpp:13: error: (Each undeclared identifier is reported only once for each function it appears in.)
58658_0_9686.cpp: In function `int main(int, char**)':
58658_0_9686.cpp:31: error: `g' undeclared (first use this function)