Compilare: main.cpp: In function 'int main()': main.cpp:41:29: warning: format '%d' expects argument of type 'int*', but argument 4 has type 'long long int*' [-Wformat=] fscanf(fin, "%d%d", &n, &m); ^ main.cpp:41:30: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d", &n, &m); ^ main.cpp:43:28: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%lld", &x); ^