View Compilation Error

0_0_32699397_22985.cpp:6:13: error: 'mxan' was not declared in this scope
 long long c[mxan];
             ^
0_0_32699397_22985.cpp: In function 'int main()':
0_0_32699397_22985.cpp:13:5: error: 'c' was not declared in this scope
     c[1]=0;
     ^