View Compilation Error

0_0_31461429_22729.cpp: In function 'long long int C(long long int, long long int)':
0_0_31461429_22729.cpp:20:15: error: 'c' was not declared in this scope
     return (((c[n]*qpow(c[m],mod-2))%mod)*qpow(c[n-m],mod-2))%mod;
               ^
0_0_31461429_22729.cpp: In function 'int main()':
0_0_31461429_22729.cpp:43:21: error: expected unqualified-id before ')' token
             for(int )
                     ^
0_0_31461429_22729.cpp:43:21: error: expected ';' before ')' token
0_0_31461429_22729.cpp:43:21: error: expected primary-expression before ')' token
0_0_31461429_22729.cpp:43:21: error: expected ';' before ')' token
0_0_31461429_22729.cpp:44:9: error: expected primary-expression before '}' token
         }
         ^