Compilare: user.cpp: In function ‘int main()’: user.cpp:42:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < coduri.size(); ++i){ ^ user.cpp:23:35: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d%*c", &r, &n); ^ user.cpp:26:30: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%c", &c); ^ user.cpp:30:23: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%*c"); ^ user.cpp:33:26: warning: ignoring return value of ‘char* fgets(char*, int, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fgets(s, 30, fin); ^