Compilare: user.cpp: In function ‘void Merge(int)’: user.cpp:42:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(PL < Aint[LeftSon].V.size() && PR < Aint[RightSon].V.size()) ^ user.cpp:42:69: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(PL < Aint[LeftSon].V.size() && PR < Aint[RightSon].V.size()) ^ user.cpp:57:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(PL < Aint[LeftSon].V.size()) ^ user.cpp:64:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(PR < Aint[RightSon].V.size()) ^ user.cpp: In function ‘int GetInt()’: user.cpp:219:48: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(Buf, 1, MaxB, stdin), Ptr = 0; ^ user.cpp:228:48: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(Buf, 1, MaxB, stdin), Ptr = 0; ^ user.cpp: In function ‘int main()’: user.cpp:236:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("ecotraseu.in", "r", stdin); ^ user.cpp:237:42: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("ecotraseu.out", "w", stdout); ^