比赛链接:http://codeforces.com/contest/569 A. Music time limit per test:2 seconds memory limit per test:256 megabytes Little Lesha loves listening to music via his smartphone. But the smartphone doesn't have much memory, so Lesha listens to his favorite…
Codeforces Round #563 (Div. 2)/CF1174 CF1174A Ehab Fails to Be Thanos 其实就是要\(\sum\limits_{i=1}^n a_i\)与\(\sum\limits_{n+1}^{2n}a_i\)差值最大,排一下序就好了 CF1174B Ehab Is an Odd Person 一个显然的结论就是如果至少有一个奇数和一个偶数,那么是可以随意调整的,也就是升序排序 否则不可以进行任何操作 code CF1174C Ehab an…
Codeforces Round #354 (Div. 2) Problems # Name A Nicholas and Permutation standard input/output 1 s, 256 MB x3384 B Pyramid of Glasses standard input/output 1 s, 256 MB x1462 C Vasya and String standard input/output 1 s, 256 MB x1393…