cf Hongcow Learns the Cyclic Shift
2016-12-18 01:32
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计数,用set <string>str
set里面自带去重,
输出str.size() 即为所求。
#include <bits/stdc++.h>
#define LL long long
using namespace std;
int main(){
int T,cnt=0;
string a,b;
cin>>a;
int len=a.size();
a+=a;
set<string> str;
for(int i=0;i<len;i++){
string s=a.substr(i,len);
str.insert(s);
}
printf("%d\n",str.size());
return 0;
}
计数,用set <string>str
set里面自带去重,
输出str.size() 即为所求。
#include <bits/stdc++.h>
#define LL long long
using namespace std;
int main(){
int T,cnt=0;
string a,b;
cin>>a;
int len=a.size();
a+=a;
set<string> str;
for(int i=0;i<len;i++){
string s=a.substr(i,len);
str.insert(s);
}
printf("%d\n",str.size());
return 0;
}
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