这场和div3差不多嘛(后来发现就是div3),就是网太卡10min交一发就不错了,简直自闭. A 签到. B 记录每一段的字母数,满足条件即:段数相同+字母相同+字母数下>=上. #include<bits/stdc++.h> using namespace std; ; char a[N],b[N]; int n,m,n1,n2,c1[N],s1[N],c2[N],s2[N]; bool check() { ; n1=n2=; ;i<=n;i++)||a[i]!=a[i-])c…

明明多个几秒就能场上AK了.自闭. A:签到. #include<iostream> #include<cstdio> #include<cmath> #include<cstdlib> #include<cstring> #include<algorithm> using namespace std; #define ll long long ')) c=getchar();return c;} ?n:gcd(m,n%m);} in…

A:显然应该让未确定的大小尽量大.不知道写了啥就wa了一发. #include<iostream> #include<cstdio> #include<cmath> #include<cstdlib> #include<cstring> #include<algorithm> using namespace std; #define ll long long #define N 200010 #define inf 100000001…

整天自闭. A:有各种讨论方式.我按横坐标排了下然后讨论了下纵坐标单调和不单调两种情况.写了15min也就算了,谁能告诉我printf和cout输出不一样是咋回事啊?又调了10min啊?upd:突然想起来我好像define int long long了 #include<iostream> #include<cstdio> #include<cmath> #include<cstdlib> #include<cstring> #include&l…

B. Email from Polycarp 题目链接:http://codeforces.com/contest/1185/problem/B 题目: Methodius received an email from his friend Polycarp. However, Polycarp's keyboard is broken, so pressing a key on it once may cause the corresponding symbol to appear more…

A. Ropewalkers 题目链接:http://codeforces.com/contest/1185/problem/A 题目: Polycarp decided to relax on his weekend and visited to the performance of famous ropewalkers: Agafon, Boniface and Konrad. The rope is straight and infinite in both directions. At…

有点菜,只写出了三道.活不多说,上题开干. A. Ropewalkers Polycarp decided to relax on his weekend and visited to the performance of famous ropewalkers: Agafon, Boniface and Konrad. The rope is straight and infinite in both directions. At the beginning of the performance…

链接: https://codeforces.com/contest/1185/problem/D 题意: A sequence a1,a2,-,ak is called an arithmetic progression if for each i from 1 to k elements satisfy the condition ai=a1+c⋅(i−1) for some fixed c. For example, these five sequences are arithmetic…

链接: https://codeforces.com/contest/1185/problem/C2 题意: The only difference between easy and hard versions is constraints. If you write a solution in Python, then prefer to send it in PyPy to speed up execution time. A session has begun at Beland Stat…

链接: https://codeforces.com/contest/1185/problem/B 题意: Methodius received an email from his friend Polycarp. However, Polycarp's keyboard is broken, so pressing a key on it once may cause the corresponding symbol to appear more than once (if you press…