D. Substring time limit per test 3 seconds memory limit per test 256 megabytes input standard input output standard output You are given a graph with n nodes and m directed edges. One lowercase letter is assigned to each node. We define a path's valu…
D. Substring time limit per test3 seconds memory limit per test256 megabytes Problem Description You are given a graph with n nodes and m directed edges. One lowercase letter is assigned to each node. We define a path's value as the number of the mos…
A. Supermarket We often go to supermarkets to buy some fruits or vegetables, and on the tag there prints the price for a kilo. But in some supermarkets, when asked how much the items are, the clerk will say that a yuan for b kilos (You don't need to…
C. Journey time limit per test 3 seconds memory limit per test 256 megabytes input standard input output standard output Recently Irina arrived to one of the most famous cities of Berland — the Berlatov city. There are n showplaces in the city, numbe…
E. Congruence Equation time limit per test 3 seconds memory limit per test 256 megabytes input standard input output standard output Given an integer x. Your task is to find out how many positive integers n (1 ≤ n ≤ x) satisfy where a, b, p are all k…
C. Seat Arrangements time limit per test1 second memory limit per test256 megabytes Problem Description Suppose that you are in a campus and have to go for classes day by day. As you may see, when you hurry to a classroom, you surprisingly find that…
B. Perfect Number time limit per test2 seconds memory limit per test256 megabytes Problem Description We consider a positive integer perfect, if and only if the sum of its digits is exactly 10. Given a positive integer k, your task is to find the k-t…
A. Supermarket time limit per test2 seconds memory limit per test256 megabytes Problem Description We often go to supermarkets to buy some fruits or vegetables, and on the tag there prints the price for a kilo. But in some supermarkets, when asked ho…
[链接] 我是链接,点我呀:) [题意] 在这里输入题意 [题解] 直接暴力求出第k个perfect数字就好. 纯模拟. [代码] #include <bits/stdc++.h> #define double long double using namespace std; int n; int _judge(int x){ int num = 0; while (x){ num+=x%10; x/=10; } return num==10; } int main(){ #ifdef LOC…
题目传送门 B. Perfect Number time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output We consider a positive integer perfect, if and only if the sum of its digits is exactly 1010. Given a positive integ…
A. Supermarket time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output We often go to supermarkets to buy some fruits or vegetables, and on the tag there prints the price for a kilo. But in some s…
C. Running Track 题目连接: http://www.codeforces.com/contest/615/problem/C Description A boy named Ayrat lives on planet AMI-1511. Each inhabitant of this planet has a talent. Specifically, Ayrat loves running, moreover, just running is not enough for hi…
题目链接: http://codeforces.com/problemset/problem/214/E Relay Race time limit per test4 secondsmemory limit per test256 megabytes 问题描述 Furik and Rubik take part in a relay race. The race will be set up on a large square with the side of n meters. The gi…
D. Zuma Genos recently installed the game Zuma on his phone. In Zuma there exists a line of n gemstones, the i-th of which has color ci. The goal of the game is to destroy all the gemstones in the line as quickly as possible. In one second, Genos i…
B. Longtail Hedgehog 题目连接: http://www.codeforces.com/contest/615/problem/B Description This Christmas Santa gave Masha a magic picture and a pencil. The picture consists of n points connected by m segments (they might cross in any way, that doesn't m…
题目链接: http://codeforces.com/problemset/problem/650/C C. Table Compression time limit per test4 secondsmemory limit per test256 megabytes 问题描述 Little Petya is now fond of data compression algorithms. He has already studied gz, bz, zip algorithms and m…
题目链接: http://codeforces.com/contest/429/problem/B B. Working out time limit per test2 secondsmemory limit per test256 megabytes 问题描述 Summer is coming! It's time for Iahub and Iahubina to work out, as they both want to look hot at the beach. The gym w…
B. Hamming Distance Sum time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output Genos needs your help. He was asked to solve the following programming problem by Saitama: The length of some string…
G. Fence Divercity 题目连接: http://www.codeforces.com/contest/659/problem/G Description Long ago, Vasily built a good fence at his country house. Vasily calls a fence good, if it is a series of n consecutively fastened vertical boards of centimeter widt…
