Borderou de evaluare (job #800220)

Compilare: main.cpp: In function 'std::string criptare(const std::string&, int)': main.cpp:7:33: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'unsigned int'} [-Wsign-compare] 7 | #define forn(i,n) for(int i=0; i<(n); ++i) | ^ main.cpp:22:9: note: in expansion of macro 'forn' 22 | forn(i, S.size()) | ^~~~ main.cpp: In function 'int32_t main()': main.cpp:61:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result] 61 | freopen("criptare.in", "r", stdin); | ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:62:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result] 62 | freopen("criptare.out", "w", stdout); | ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~