Compilare: main.cpp: In function 'int main()': main.cpp:100:46: warning: format '%d' expects argument of type 'int', but argument 3 has type 'std::vector<muchie>::size_type {aka long unsigned int}' [-Wformat=] printf("%d\n%d\n", max_extra, muchii.size()); ^ main.cpp:101:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < muchii.size(); i++) ~~^~~~~~~~~~~~~~~ main.cpp:45:38: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("conexidad.in", "r", stdin); ^ main.cpp:46:40: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("conexidad.out", "w", stdout); ^ main.cpp:49:25: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d", &n, &m); ^ main.cpp:58:27: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d", &x, &y); ^