Compilare: main.cpp: In function 'int main()': main.cpp:105:54: warning: format '%d' expects argument of type 'int', but argument 3 has type 'long long int' [-Wformat=] fprintf (fout,"%d\n",((long long)sol*pos)%MOD); ^ main.cpp:31:25: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%d",&t); ^ main.cpp:34:34: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%d%d",&n,&k); ^ main.cpp:40:36: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%d",&v[i]); ^