Compilare: user.cpp: In function ‘void adaugare(char*)’: user.cpp:8:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0;i<strlen(s);i++) frecv[s[i]-48]++; ^ user.cpp: In function ‘int main()’: user.cpp:60:22: warning: format ‘%s’ expects argument of type ‘char*’, but argument 2 has type ‘char (*)[50]’ [-Wformat=] scanf("%s",&s); ^ user.cpp:54:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("cifre5.in","r",stdin); ^ user.cpp:55:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("cifre5.out","w",stdout); ^ user.cpp:56:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^ user.cpp:59:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("\n"); ^ user.cpp:60:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s",&s); ^