User login [ZKSh-2017. Day 2. Динамическое программирование 2.]
 
ZKSh-2015
For C/C++ users:
  • use long long for signed 64-bit integers; use %lld as format string for reading signed 64-bit integers;
  • use unsigned long long for unsigned 64-bit integers; use %llu as format string for reading unsigned 64-bit integers;