Compilare: user.cpp: In function ‘int main()’: user.cpp:123:51: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (!pasageri.empty() && pasageri.size() > locuri) { ^ user.cpp:128:40: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = 0; j < pleaca[i].size(); ++j) { ^ user.cpp:131:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (pasageri.size() < locuri) { ^ user.cpp:150:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = 0; j < vine[i].size(); ++j) { ^ user.cpp:148:9: warning: unused variable ‘statie’ [-Wunused-variable] int statie = pozStatie[i]; ^ user.cpp:72:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("trenuri3.in", "r", stdin); ^ user.cpp:73:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("trenuri3.out", "w", stdout); ^ user.cpp:77:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &n, &m); ^ user.cpp:79:49: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &tren[i].statie, &tren[i].cap); ^ user.cpp:82:42: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &pas[i].st, &pas[i].dr); ^