Compilare: user.cpp: In function ‘void update(int)’: user.cpp:52:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < war[n].size(); i++) { ^ user.cpp: In function ‘char getch(FILE*)’: user.cpp:25:32: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(buftea, 1, BUFF, fin); ^