Compilare: user.cpp: In function ‘int main()’: user.cpp:33:42: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] bool popel = (lmin[pmin].size() == n - 1), popita = (lmax[pmax].size() == n - 1); ^ user.cpp:33:81: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] bool popel = (lmin[pmin].size() == n - 1), popita = (lmax[pmax].size() == n - 1); ^ user.cpp:12:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("minmaxstore.in", "r", stdin); ^ user.cpp:13:41: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("minmaxstore.out", "w", stdout); ^ user.cpp:14:17: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &t); ^ user.cpp:16:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &n, &m); ^ user.cpp:22:25: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &x, &y); ^ user.cpp:31:30: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &pmin, &pmax); ^