A. Reachable Numbers 题意:设f(x)为 x+1 这个数去掉后缀0的数,现在给出n,问经过无数次这种变换后,最多能得到多少个不同的数. 代码 #include<cstdio> #include<cstring> #include<iostream> #include<algorithm> #include<queue> #include<stack> #include<set> #include<…

Codeforces Round #297 (Div. 2)A. Vitaliy and Pie Time Limit: 2 Sec  Memory Limit: 256 MBSubmit: xxx  Solved: 2xx 题目连接 http://codeforces.com/contest/525/problem/A Description After a hard day Vitaly got very hungry and he wants to eat his favorite pot…

A.Reachable Numbers 题意: 给定操作f(x):将x加1,删去得到的数的所有末尾0,如f(10099)=10099+1=10100→1010→101.现在给定一个数n,对n进行无限次该操作,输出过程中能得到的所有数的数量. 输入:一个正整数n(n≤1e9) 输出:操作过程中得到的所有数数量 限制:1s,256M 样例: input 1098 output 20 样例解释:1098在操作过程中得到的数有:1,2,3,4,5,6,7,8,9,11,12,13,14,15,16,17…

A. Mahmoud and Longest Uncommon Subsequence time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output While Mahmoud and Ehab were practicing for IOI, they found a problem which name was Longest comm…

A. Link/Cut Tree 题目连接: http://www.codeforces.com/contest/614/problem/A Description Programmer Rostislav got seriously interested in the Link/Cut Tree data structure, which is based on Splay trees. Specifically, he is now studying the expose procedure…

D1:思路:L,R指针移动,每次选最小的即可. #include<bits/stdc++.h> using namespace std; #define int long long #define N 200009 int arr[N]; int ans[N]; signed main(){ int n; cin>>n; ;i<=n;i++){ cin>>arr[i]; } ,r=n; ; ; ){ if(now<arr[l]&&now<…

对没错下面的代码全部是python 3(除了E的那个multiset) 题目链接:https://codeforces.com/contest/1157 A. Reachable Numbers 按位算贡献,一位数的贡献直接算即可 n=int(input()) ans=0 while (n>=10): tmp=n%10 tmp=10-tmp ans+=tmp n+=tmp while (n>0) and (n%10==0): n//=10 ans+=9 print(ans) B. Long N…

A. Reachable Numbers 代码: #include <bits/stdc++.h> using namespace std; ; int N; set<int> s; int main() { scanf("%d", &N); while(s.find(N) == s.end()) { s.insert(N); N += ; == ) N /= ; } printf("%d\n", (int) s.size()); ;…

A:    http://codeforces.com/contest/1157/problem/A 题意:每次加到10的整数倍之后,去掉后面的0,问最多有多少种可能. #include <iostream> #include <algorithm> #include <vector> #include <string> #include <set> using namespace std; int main() { ios::sync_with…

不得不说这场div3是真的出的好,算得上是从我开始打开始最有趣的一场div3.因为自己的号全都蓝了,然后就把不经常打比赛的dreagonm的号借来打这场,然后...比赛结束rank11(帮dreagonm上蓝果然没有食言qwq). (震惊...HA省A队CF青名...) upd:system test之后的最终排名是rank9,dreagonmTQL!!! CF1157A Reachable Numbers 水题,分析一下不难发现不超过\(10\)次就会少一位,然后\(10^9\)范围内的数可以…