10924 - Prime Words/10924.cpp

   1 using namespace std;
   2 #include <algorithm>
   3 #include <iostream>
   4 #include <iterator>
   5 #include <sstream>
   6 #include <fstream>
   7 #include <cassert>
   8 #include <climits>
   9 #include <cstdlib>
  10 #include <cstring>
  11 #include <string>
  12 #include <cstdio>
  13 #include <vector>
  14 #include <cmath>
  15 #include <queue>
  16 #include <deque>
  17 #include <stack>
  18 #include <list>
  19 #include <map>
  20 #include <set>
  21
  22 #define foreach(x, v) for (typeof (v).begin() x = (v).begin(); x != (v).end(); ++x)
  23 #define For(i, a, b) for (int i=(a); i<(b); ++i)
  24 #define D(x) cout << #x " is " << x << endl
  25
  26 char buf[32];
  27
  28 bool p(int n){
  29   for (int i=2; i*i<=n; ++i) if (n % i == 0) return false;
  30   return true;
  31 }
  32
  33 int main(){
  34   while (fgets(buf, 32, stdin) != NULL){
  35     int n = 0;
  36     for (int i=0; i<strlen(buf)-1; ++i){
  37       char c = buf[i];
  38       n += (islower(c) ? c - 'a' + 1 : c - 'A' + 27);
  39     }
  40     printf("It is %sa prime word.\n", p(n) ? "" : "not ");
  41   }
  42   return 0;
  43 }