A. Bits Let's denote as the number of bits set ('1' bits) in the binary representation of the non-negative integer x. You are given multiple queries consisting of pairs of integers l and r. For each query, find the x, such that l ≤ x ≤ r, and is m…
A. Bits Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/contest/484/problem/A Description Let's denote as the number of bits set ('1' bits) in the binary representation of the non-negative integer x. You are given multiple queries…
D. Kindergarten In a kindergarten, the children are being divided into groups. The teacher put the children in a line and associated each child with his or her integer charisma value. Each child should go to exactly one group. Each group should b…
B. Urbanization 题目链接 http://codeforces.com/contest/735/problem/B 题面 Local authorities have heard a lot about combinatorial abilities of Ostap Bender so they decided to ask his help in the question of urbanization. There are n people who plan to move…
B. Sail 题目连接: http://www.codeforces.com/contest/298/problem/B Description The polar bears are going fishing. They plan to sail from (sx, sy) to (ex, ey). However, the boat can only sail by wind. At each second, the wind blows in one of these directio…
B. Passwords 题目连接: http://codeforces.com/contest/721/problem/B Description Vanya is managed to enter his favourite site Codehorses. Vanya uses n distinct passwords for sites at all, however he can't remember which one exactly he specified during Code…
A. Mafia Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/contest/348/problem/A Description One day n friends gathered together to play "Mafia". During each round of the game some player must be the supervisor and other n - 1…
链接: https://codeforces.com/contest/1216/problem/B 题意: Recently Vasya decided to improve his pistol shooting skills. Today his coach offered him the following exercise. He placed n cans in a row on a table. Cans are numbered from left to right from 1…
题目链接: http://codeforces.com/problemset/problem/268/E E. Playlist time limit per test 1 secondmemory limit per test 256 megabytes 问题描述 Manao's friends often send him new songs. He never listens to them right away. Instead, he compiles them into a play…
A. Purification Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/contest/329/problem/A Description You are an adventurer currently journeying inside an evil temple. After defeating a couple of weak zombies, you arrived at a square r…
A. Exams Time Limit: 1 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/contest/480/problem/A Description Student Valera is an undergraduate student at the University. His end of term exams are approaching and he is to pass exactly n exams. Valera…
题目:Click here 题意:给你n,然后n个数,n个数中可能重复,可能不是1到n中的数.然后你用最少的改变数,让这个序列包含1到n所有数,并输出最后的序列. 分析:贪心. #include <bits/stdc++.h> using namespace std; ; int n; int a[M]; // 给定序列 int mark[M]; // mark[i] 表示i在给定序列中的出现次数 int notap[M]; // 给的序列中没有出现的元素 bool firstout; voi…
C. Woodcutters Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/contest/545/problem/C Description Little Susie listens to fairy tales before bed every day. Today's fairy tale was about wood cutters and the little girl immediately s…
There are n workers in a company, each of them has a unique id from 1 to n. Exaclty one of them is a chief, his id is s. Each worker except the chief has exactly one immediate superior. There was a request to each of the workers to tell how how many…
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…
E. Sign on Fence Bizon the Champion has recently finished painting his wood fence. The fence consists of a sequence of n panels of 1 meter width and of arbitrary height. The i-th panel's height is hi meters. The adjacent planks follow without a gap…
C. Woodcutters time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Little Susie listens to fairy tales before bed every day. Today's fairy tale was about wood cutters and the little girl immedi…
B. Equidistant String time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Little Susie loves strings. Today she calculates distances between them. As Susie is a small girl after all, her string…
D. Kindergarten Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/problemset/problem/484/D Description In a kindergarten, the children are being divided into groups. The teacher put the children in a line and associated each child wi…
