Compilare: main.cpp: In function 'void Bkt(int)': main.cpp:51:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(bt.count() == d) { ~~~~~~~~~~~^~~~ main.cpp: In function 'int main()': main.cpp:77:37: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("pluricex.in", "r", stdin); ^ main.cpp:78:39: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("pluricex.out", "w", stdout); ^ main.cpp:79:30: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d", &n, &k, &d); ^ main.cpp:83:21: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &nr); ^ main.cpp:86:22: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &x); ^