Borderou de evaluare (job #858452)

Compilare: main.cpp: In member function 'Number Number::sqrt() const': main.cpp:102:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::size_t' {aka 'long unsigned int'} [-Wsign-compare] 102 | for (int i = 1; i < (len() + 1) / 2; i++) | ~~^~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:158:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result] 158 | freopen("sqrt.in", "r", stdin); | ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~ main.cpp:159:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result] 159 | freopen("sqrt.out", "w", stdout); | ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~