(I2
I37
I5
(dp0
Vnecklace.%l
p1
(Vnecklace.cpp
p2
S'#include<bits/stdc++.h>\r\nusing namespace std;\r\nint main()\r\n{string s,a;\r\nlong long br1=0,j,n,k,i,sum=0;\r\ncin>>n>>k;\r\ncin>>s;\r\nfor(i=0;i<k;i++)\r\n{cin>>a;\r\nfor(j=n-1;j>=0;j--)\r\n{if(a[0]!=a[1])\r\n{if(s[j]==a[1])br1++;\r\nif(s[j]==a[0])sum+=br1;\r\n}\r\nif(a[0]==a[1])\r\n{if(s[j]==a[0])br1++;\r\n}\r\n}\r\nif(a[0]==a[1])sum+=br1*(br1-1)/2;\r\nbr1=0;\r\n}\r\ncout<<sum<<endl;\r\nreturn 0;\r\n}\r\n'
p3
tp4
stp5
.