Compilare: main.cpp: In function 'int main()': main.cpp:46:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 1; i < tinte.size(); ++i) { ~~^~~~~~~~~~~~~~ main.cpp:57:43: warning: format '%d' expects argument of type 'int', but argument 2 has type 'std::vector<std::pair<coordinates, double> >::size_type {aka long unsigned int}' [-Wformat=] printf("%d\n%d\n", tinte.size(), nrDif); ^ main.cpp:29:39: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("poligon6.in", "r", stdin); ^ main.cpp:30:41: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("poligon6.out", "w", stdout); ^ main.cpp:32:20: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &N); ^ main.cpp:34:24: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &D); ^