It's one more school day now. Sasha doesn't like classes and is always bored at them. So, each day he invents some game and plays in it alone or with friends. Today he invented one simple game to play with Lena, with whom he shares a desk. The rules…
A:暴力. #include<cstdio> #include<cstring> #include<iostream> #include<algorithm> #define rep(i,l,r) for (int i=(l); i<=(r); i++) typedef long long ll; using namespace std; ; int n; char s[N]; int main(){ scanf(); n=strlen(s+)…
C. Anna, Svyatoslav and Maps time limit per test2 seconds memory limit per test256 megabytes inputstandard input outputstandard output The main characters have been omitted to be short. You are given a directed unweighted graph without loops with n v…
D2. Kirk and a Binary String (hard version) time limit per test1 second memory limit per test256 megabytes inputstandard input outputstandard output The only difference between easy and hard versions is the length of the string. You can hack this pro…
B. Mislove Has Lost an Array time limit per test1 second memory limit per test256 megabytes inputstandard input outputstandard output Mislove had an array a1, a2, ⋯, an of n positive integers, but he has lost it. He only remembers the following facts…
A. BowWow and the Timetable time limit per test1 second memory limit per test256 megabytes inputstandard input outputstandard output In the city of Saint Petersburg, a day lasts for 2100 minutes. From the main station of Saint Petersburg, a train dep…
