Compilare: user.cpp: In function ‘int main()’: user.cpp:122:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("pocnitoare.in", "r", stdin); ^ user.cpp:123:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("pocnitoare.out", "w", stdout); ^ user.cpp: In function ‘void Solve()’: user.cpp:81:17: warning: ‘time_global’ may be used uninitialized in this function [-Wmaybe-uninitialized] return ((LL) i * position + A) % D; ^ user.cpp:91:49: note: ‘time_global’ was declared here int rad = sqrt(MOD1), time_now, pos_now, i, j, time_global; ^