[codeforces]F. Compress String 题解: SAM板子题 但是要做一个小dp 很显然 有个dp就是 $ dp[i]=min(dp[i],dp[j]+b) $若在子串[1,j-1]中子串[j,i]存在 那么我们就用SAM维护每个子串最早出现在字符串中的位置 然后check一下就行了 ...codeforces1367F2 Flying Sort (Hard Version) https://...
}intvis1[maxn],vis2[maxn],a[maxn],b[maxn];intn,k,tot,sa,sb,sta[maxn];intans[maxn];intmain(){ cin>>n>>k; rep(i,1,n) { scanf("%d",&a[i]); }intnum=0;inttop=0; rep(i,1,n) { scanf("%d",&b[i]); vis2[a[i]]?(vis2[a[i]]=0,num--):(vis1[a[i]]...
b) string s(str) //拷贝构造函数 生成str的复制品 c) string s(str,stridx) //将字符串str内“始于位置stridx”的部分当作字符串的初值 d) string s(str,stridx,strlen) //将字符串str内“始于stridx且长度顶多strlen”的部分作为字符串的初值 e) string s(cstr) //将C字符串作为s的初值 f) stri...
String aa is a substring of string bb if it is possible to choose several consecutive letters in bb in such a way that they form aa. For example, string "for" is contained as a substring in strings "codeforces", "for" and "therefore", but is not contained as a substring in strings...
Substrings Sort CodeForces - 988B(sort()+s.find()函数应用),水题,记录一下两个函数的使用。AC代码:#include<iostream>#include<string>#include<algorithm>usingnamespacestd;strings[105];boolcmp(stringa,stringb){if(a.size()!=b.size())retur
你需要输出一个长度为n的字符序列(由小写字母组成),且这个字符串中至少包含k个不同的字符。另外题目还有要求:给你两个长度为p和q的序列,设字符序列存在s中 那么就会有s[Pi]<=s[P(i+1)] (i<p) s[Qi]<=s[Q(i+1)] (i<q) 如果你能找出来满足这些条件的字符串s,就输出YES和s,否则输出NO ...
#include <string> #include <set> #include <ctime> #include <cmath> #include <cctype> using namespace std; #define maxn 10010 #define LL long long int cas=1,T; int n,a[maxn],b[maxn]; int main() { scanf("%d",&n);
For example, string "for" is contained as a substring in strings "codeforces", "for" and "therefore", but is not contained as a substring in strings "four", "fofo" and "rof". Input The first line contains an integer nn (1≤n≤1001≤n≤100) — the number of strings. The next ...
Now I wanted to know that can this type of case happen during a submission in Codeforces or It can never happen. Sorry for silly question. Thanks in advance.
Stringais a substring of stringbif it is possible to choose several consecutive letters inbin such a way that they forma. For example, string "for" is contained as a substring in strings "codeforces", "for" and "therefore", but is not contained as a substring in strings "four", "fofo...