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【CodeForces - 27E】Number With The Given Amount Of Divisors (数论,数学,反素数)
题干: Given the number n, find the smallest positive integer which has exactly n divisors. It is guaranteed that for the given n the answer will not ex...
2018-12-08
0
1026
【CodeForces - 289E 】Polo the Penguin and XOR operation (数学,异或,贪心)
题干: Little penguin Polo likes permutations. But most of all he likes permutations of integers from 0 to n, inclusive. For permutation p = p0, p1, .....
2018-11-28
0
796
【POJ - 2301 】Beat the Spread! (简单数学)
题干: Superbowl Sunday is nearly here. In order to pass the time waiting for the half-time commercials and wardrobe malfunctions, the local hackers ...
2018-11-05
0
824
【CodeForces - 215B 】Olympic Medal (数学,公式推导)
题干: The World Programming Olympics Medal is a metal disk, consisting of two parts: the first part is a ring with outer radius of r1 cm, inner radius ...
2018-11-02
0
571