C. String Reconstruction time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output Ivan had string s consisting of small English letters. However, his friend Julia decided to make fun of him and hid…
Ivan had string s consisting of small English letters. However, his friend Julia decided to make fun of him and hid the string s. Ivan preferred making a new string to finding the old one. Ivan knows some information about the string s. Namely, he re…
裸的近期点对.... D. Tricky Function time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output Iahub and Sorin are the best competitive programmers in their town. However, they can't both qualify to an imp…
哥德巴赫猜想: 任一大于2的偶数,都可表示成两个素数之和. 任一大于5的整数都可写成三个质数之和. 贪心取尽可能大的素数..... C. Prime Swaps time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output You have an array a[1], a[2], ..., a[n], containing distinc…
B. Text Document Analysis time limit per test:1 second memory limit per test:256 megabytes input:standard input output:standard output Modern text editors usually show some information regarding the document being edited. For example, the number of w…
A. The New Year: Meeting Friends time limit per test:1 second memory limit per test:256 megabytes input:standard input output:standard output There are three friend living on the straight line Ox in Lineland. The first friend lives at the point x1, t…
