Compilare: user.cpp: In function ‘void Citeste()’: user.cpp:19:28: warning: ignoring return value of ‘char* fgets(char*, int, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fgets(s,6*MAXN-1,f); l=strlen(s); if( s[l-1]=='\n' ){ s[l-1]='\0'; l--; } ^ user.cpp: In function ‘int main()’: user.cpp:63:25: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%ld\n",&n); ^