hexagon.cpp: In function 'long long int mul(long long int, long long int)':
hexagon.cpp:13:28: error: 'mod' was not declared in this scope; did you mean 'modf'?
13 | if (n%2==0) return (t*t)%mod;
| ^~~
| modf
hexagon.cpp:14:22: error: 'mod' was not declared in this scope; did you mean 'modf'?
14 | else return ((t*t)%mod*a)%mod;
| ^~~
| modf
hexagon.cpp: In function 'int draw_territory(int, int, int, std::vector<int>, std::vector<int>)':
hexagon.cpp:25:13: warning: unused variable 'totalsq' [-Wunused-variable]
25 | int totalsq = 4000*4000;
| ^~~~~~~
hexagon.cpp:26:13: warning: unused variable 'dx' [-Wunused-variable]
26 | int dx[6] = {0, 1, 1, 0, -1, -1};
| ^~
hexagon.cpp:27:13: warning: unused variable 'dy' [-Wunused-variable]
27 | int dy[6] = {2, 1 ,-1, -2, -1, 1};
| ^~