Borderou de evaluare (job #787345)

Compilare: main.cpp: In function 'long long int ways(int, int)': main.cpp:13:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'unsigned int'} [-Wsign-compare] 13 | for (int j = 0; j < stairs.size(); ++j) { | ~~^~~~~~~~~~~~~~~ main.cpp:18:27: warning: comparison of integer expressions of different signedness: 'std::vector<long long int>::size_type' {aka 'unsigned int'} and 'int' [-Wsign-compare] 18 | if (stairs.size() > k) | ~~~~~~~~~~~~~~^~~ main.cpp: In function 'int main()': main.cpp:29:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result] 29 | freopen("scara.in", "r", stdin); | ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:30:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result] 30 | freopen("scara.out", "w", stdout); | ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~