Compilare: main.cpp: In function 'void pop_cbc(int, int)': main.cpp:44:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(cbc_muchii != cbc[nr_cbc].size() * (cbc[nr_cbc].size() - 1) / 2) /// cbc tb sa fie graf complet ~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:122:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(stiva.size() != nod_idx - 1) ~~~~~~~~~~~~~^~~~~~~~~~~~~~ main.cpp:128:42: warning: format '%d' expects argument of type 'int', but argument 2 has type 'std::vector<muchie>::size_type {aka long unsigned int}' [-Wformat=] printf("DA\n%d\n", stiva.size() + 1); ^ main.cpp:82:38: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("linegraph.in", "r", stdin); ^ main.cpp:83:40: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("linegraph.out", "w", stdout); ^ main.cpp:86:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &t); ^ main.cpp:88:27: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d", &n, &m); ^ main.cpp:107:29: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d", &x, &y); ^