View Compilation Error

0_0_7911703_9965.cpp:9: error: `intzero' has not been declared
0_0_7911703_9965.cpp:10: error: ISO C++ forbids declaration of `parameter' with no type
0_0_7911703_9965.cpp: In function `lld dfs(int, int, int, int, bool)':
0_0_7911703_9965.cpp:14: error: `zero' undeclared (first use this function)
0_0_7911703_9965.cpp:14: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_7911703_9965.cpp:38: error: `intnext' undeclared (first use this function)
0_0_7911703_9965.cpp:39: error: `next' undeclared (first use this function)