Compilare: user.cpp: In function ‘void Add_To_Hash(unsigned int)’: user.cpp:31:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<Hash[V%MOD].size();i++) ^ user.cpp: In function ‘int Search_In_Hash(unsigned int)’: user.cpp:41:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<Hash[V%MOD].size();i++) ^ user.cpp: In function ‘int main()’: user.cpp:58:17: warning: format ‘%s’ expects argument of type ‘char*’, but argument 2 has type ‘char (*)[65]’ [-Wformat=] scanf("%s ",&W); ^ user.cpp:69:17: warning: format ‘%s’ expects argument of type ‘char*’, but argument 2 has type ‘char (*)[65]’ [-Wformat=] scanf("%s ",&W); ^ user.cpp:52:30: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("test.in","r",stdin); ^ user.cpp:53:32: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("test.out","w",stdout); ^ user.cpp:55:17: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d ",&N); ^ user.cpp:58:18: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s ",&W); ^ user.cpp:65:17: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d ",&M); ^ user.cpp:69:18: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s ",&W); ^