(I2
I25
I5
(dp0
Vnecklace.%l
p1
(Vnecklace.cpp
p2
S'# include <iostream>\r\n# include <cstdio>\r\nusing namespace std;\r\nint a[27]={0};\r\nint b[27][27]={0};\r\nvoid onta(int i)\r\n{\r\n    int j;\r\n    for(j=1;j<=26;j++)\r\n        b[i][j]+=a[j];\r\n}\r\nint main()\r\n{\r\nint n,k,i;\r\nlong long s=0;\r\nchar h,l;\r\nscanf("%d%d",&n,&k);\r\nfor(i=1;i<=n;i++)\r\n{\r\n    cin>>h;\r\n    onta(h-\'a\'+1);\r\n    a[h-\'a\'+1]++;\r\n}\r\n\r\nfor(i=1;i<=k;i++)\r\n{\r\n   cin>>h>>l;\r\n    s=s+b[l-\'a\'+1][h-\'a\'+1];\r\n}\r\nprintf("%lld\\n",s);\r\n}\r\n'
p3
tp4
stp5
.