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http://codeforces.com/contest/990/problem/C C. Bracket Sequences Concatenation Problem time limit per test 2 seconds memory limit per test 256 megabyt 阅读全文
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Max Sum Plus Plus Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 35485 Accepted Submission(s): 1 阅读全文
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Description Consider two natural numbers A and B. Let S be the sum of all natural divisors of A^B. Determine S modulo 9901 (the rest of the division o 阅读全文
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E. XOR and Favorite Number time limit per test 4 seconds memory limit per test 256 megabytes input standard input output standard output Bob has a fav 阅读全文