Borderou de evaluare (job #615468)

Compilare: main.cpp: In function 'bool check()': main.cpp:10:22: warning: comparison of integer expressions of different signedness: 'std::set<int>::size_type' {aka 'unsigned int'} and 'int' [-Wsign-compare] 10 | return (s.size() == k); | ~~~~~~~~~^~~~ main.cpp: In function 'void bkt(int)': main.cpp:17:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'unsigned int'} [-Wsign-compare] 17 | if(i < a.size() && a[i] == c) { | ~~^~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:32:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result] 32 | freopen("permutari.in", "r", stdin); | ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:33:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result] 33 | freopen("permutari.out", "w", stdout); | ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~