View Compilation Error

0_0_6977792_11876.cpp: In function `void dfs_init(int, int)':
0_0_6977792_11876.cpp:32: error: `dfs' undeclared (first use this function)
0_0_6977792_11876.cpp:32: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_6977792_11876.cpp: In function `int main()':
0_0_6977792_11876.cpp:36: error: too many arguments to function `void solve(char)'
0_0_6977792_11876.cpp:64: error: at this point in file
0_0_6977792_11876.cpp:36: error: too many arguments to function `void solve(char)'
0_0_6977792_11876.cpp:65: error: at this point in file
0_0_6977792_11876.cpp:36: error: too many arguments to function `void solve(char)'
0_0_6977792_11876.cpp:66: error: at this point in file