Compilare: main.cpp: In function 'int main()': main.cpp:73:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(t=0; t<modif[i].size(); ++t) ~^~~~~~~~~~~~~~~~ main.cpp:41:28: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d\n", &k); ^ main.cpp:42:28: warning: ignoring return value of 'char* fgets(char*, int, FILE*)', declared with attribute warn_unused_result [-Wunused-result] fgets(sir, NMAX-3, fin); ^