枚举即可。 #include<cstdio>#include<iostream>usingnamespacestd;intn, a[111], ans = ~0U>>1; inlineintsqr(intx) {returnx *x; } inlineintcalc(intx) {intres =0;for(inti =1; i <= n; ++i) res+= sqr(a[i] -x);returnres; }intmain() { cin>>n;for(inti =1; i <= n; ...
AtCoder Regular Contest 059 题解 C - いっしょ / Be Together Time Limit: 2 sec / Memory Limit: 256 MB Score : 200200 points Problem Statement Evi has NN integers a1,a2,..,aNa1,a2,..,aN. His objective is to have NN equalintegersby transforming some of them. He may transform each ...
对应成SS,只需要把方案数除以一个2|S|2|S|就行了 #include<bits/stdc++.h>usingnamespacestd;constintN=5005,mod=1e9+7;intn,f[N][N],m;chars[N];intmain(){freopen("pp.in","r",stdin);freopen("pp.out","w",stdout);scanf("%d%s",&n,s+1);m=strlen(s+1); f[0][0]=1;for(i...
E:用二进制表示放的数字,然后状压$DP$。 F:$biset$优化$DP$预处理,乱搞贪心。 ARC 059 D:傻题,存在长的合法子串就一定会存在短的。 E:前缀和优化$DP$。 F:每个长度为$len$的串出现的概率是相同的,求到长度为$len$的方案数然后除$2^{len}$。 ARC 060 D:对$b$分大于根号和小于根号讨论。 E:倍增...
We will hold AtCoder Regular Contest 191 (Div. 2). Contest URL: https://atcoder.jp/contests/arc191 Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20250126T2100&p1=248 Duration: 120 minutes Number of Tasks: 5 Writer: sounansya Tester: Nyaan, maspy Rated range:...
参考代码: #include<bits/stdc++.h>usingnamespacestd;typedeflonglongLL;constintN=1e6+5;// l_min是左边最小的r边 r_min是右边最小的l边LLn,q,w[N],l[N],r[N],l_min[N],r_min[N],s,t;intmain(){cin>>n;for(inti=1;i<=n;i++)cin>>w[i];for(inti=1;i<=n;i++)cin>>l[i...
前面四道题都比较简单,后面两道题的题面到现在都没有加载出来。 A - Bridge and Sheets 直接计算就好了。具体而言,使用一个变量记录前面一个木板右端点是哪里,然后在看当前木板的时候,如果中间有空隙就加上,然后接着维护下去就行了。 intN;longlongW,L;intmain(){cin>>N>>L>>W;longlongr=0;longlongans...
We will hold AtCoder Regular Contest 151. Contest URL:https://atcoder.jp/contests/arc151 Start Time:http://www.timeanddate.com/worldclock/fixedtime.html?iso=20221016T2100&p1=248 Duration: 120 minutes Number of Tasks: 6 Writer:leaf1415 ...
164 -- 1:43:11 App [6/8] AtCoder Beginner Contest 286 (unrated) 181 -- 27:25 App [6/6] VP AtCoder Beginner Contest 166 (随机 VP) 441 1 2:00:59 App [5/7] Educational Codeforces Round 142 (1660 ⭜ 1889) 468 -- 42:43 App AtCoder Beginner Contest 334 A 至 G 題...
AtCoder Beginner Contest 235 F(数位dp) 严格鸽 Codeforces Round #816 (Div. 2) E(斜率优化 + 最短路) 严格鸽 巧用数学 AC 算法面试题 力扣(L... · 发表于力扣(LeetCode) Python重写二分法求解非线性方程的数值解 Bin ... · 发表于科学计算学徒 App 内打开 ...