Compilare: user.cpp:20:26: warning: integer constant is so large that it is unsigned [enabled by default] unsigned long long Min=INF; ^ user.cpp: In function ‘int main()’: user.cpp:16:19: warning: format ‘%d’ expects argument of type ‘int*’, but argument 3 has type ‘long long unsigned int*’ [-Wformat=] fscanf(IN,"%d",&N); ^ user.cpp:16:20: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(IN,"%d",&N); ^