Compilare: main.cpp: In function 'void top_sort()': main.cpp:30:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(idx < top_ord.size()) { ~~~~^~~~~~~~~~~~~~~~ main.cpp: In function 'void citire()': main.cpp:81:25: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d", &n, &m); ^ main.cpp:87:45: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d %lf %lf", &x, &y, &p0, &p1); ^ main.cpp: In function 'int main()': main.cpp:94:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("network.in", "r", stdin); ^ main.cpp:95:38: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("network.out", "w", stdout); ^