Codeforces 412E Hand Speed problem

codeforces 412E

1#include"iostream"2#include"Cstdio"3#include"CString"4#include"algorithm"5#include"Vector"6 using namespacestd;7 Charstr[1000010];8 intLen;9 BOOLIslCharc)Ten { One     if(c >='a'&& C <='Z') A         return 1; -     if(c >='A'&& C <='Z') -         return 1; the     return 0; - } -  - BOOLisnCharc) + { -     if(c >='0'&& C <='9') +         return 1; A     return 0; at } -  - intMain () - { -     intI, J; -scanf"%s", str +1); inlen = strlen (str +1); -__int64 res =0, A, b; to      for(i =1; I <= Len; ++i) { +         if(Str[i] = ='@') { -A = b =0; the              for(j = i-1; J >=1; --j) { *                 if(Str[j] = ='@'|| STR[J] = ='.') $                      Break;Panax Notoginseng                 if(ISL (Str[j])) -++A; the             } +              for(j = i +1; J <= Len && (ISL (str[j) | | isn (STR[J])); ++j); A             if(Str[j] = ='.'&& J! = i +1) { the                  for(++j; J <= Len && ISL (Str[j]); + +j) { +++b; -                 } $             } $Res + = A *b; -         } -     } theprintf"%i64d\n", res); -}

Codeforces 412E Hand Speed problem