Compilare: main.cpp: In function 'int main()': main.cpp:101:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < crt.size(); ++i) { ~~^~~~~~~~~~~~ main.cpp:20:39: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("anagrame.in", "r", stdin); ^ main.cpp:21:41: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("anagrame.out", "w", stdout); ^ main.cpp:24:47: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d\n%s\n%s\n", &type, A + 1, B + 1); ^