摘要:
Alyona's mother wants to present an array of n non-negative integers to Alyona. The array should be special. Alyona is a capricious girl so after she 阅读全文
摘要:
C. Dasha and Password time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output C. Dasha and Passw 阅读全文