View Compilation Error

0_0_4584798_31509.cpp:7: error: `constint' does not name a type
0_0_4584798_31509.cpp:8: error: `constint' does not name a type
0_0_4584798_31509.cpp: In function `LL power(LL, LL)':
0_0_4584798_31509.cpp:14: error: `MOD' undeclared (first use this function)
0_0_4584798_31509.cpp:14: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_4584798_31509.cpp: At global scope:
0_0_4584798_31509.cpp:20: error: `MAXN' was not declared in this scope
0_0_4584798_31509.cpp: In function `int main()':
0_0_4584798_31509.cpp:36: error: `neg' undeclared (first use this function)
0_0_4584798_31509.cpp:83: error: `MOD' undeclared (first use this function)