Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:62:25: error: cannot convert ‘std::string {aka std::basic_string<char>}’ to ‘char*’ for argument ‘1’ to ‘char* fgets(char*, int, FILE*)’ {fgets(v, 100, f); ^ user.cpp:63:19: error: cannot convert ‘std::string {aka std::basic_string<char>}’ to ‘const char*’ for argument ‘1’ to ‘size_t strlen(const char*)’ n=strlen(v); ^ user.cpp:16:26: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d\n", &t); ^