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  1. //Bismillahir Rahmanir Rahim
  2. /******Harun Or Rashid******/
  3. /***********Template Starts Here***********/
  4. #include<iostream>
  5. #include<cstdio>
  6. #include<cstring>
  7. #include<cmath>
  8. #include<cctype>
  9. #include<cstdlib>
  10. #include<cassert>
  11. #include<string>
  12. #include<vector>
  13. #include<set>
  14. #include<stack>
  15. #include<queue>
  16. #include<map>
  17. #include<algorithm>
  18. using namespace std;
  19.  
  20. #define MEM(a,b) memset(a,b,sizeof(a))
  21. #define CLR(a) memset(a,0,sizeof(a))
  22. #define MAX(a,b) ((a)>(b)?(a):(b))
  23. #define MIN(a,b) ((a)>(b)?(b):(a))
  24. #define ABS(a) ((a)>0? (a):(-(a)))
  25. #define SQ(a) ((a)*(a))
  26. #define SZ(a) (int)a.size()
  27. #define FORN(i,n) for(i=1;i<=n;i++)
  28. #define FORAB(i,a,b) for(i=a;i<=b;i++)
  29. #define ALL(V) V.begin(),V.end()
  30. #define pb(a) push_back(a)
  31. #define pr(a) cout<<a<<endl
  32. #define SQR(a) ((a)*(a))
  33. #define pf printf
  34. #define sf scanf
  35. #define mp make_pair
  36. #define swap(a,b) (a ^= b, b ^= a, a ^= b)
  37. #define PI acos(-1)
  38. #define x first
  39. #define y second
  40. #define eps 1e-7
  41.  
  42. typedef int D;
  43. typedef long long int LLD;
  44. typedef unsigned long long int LLU;
  45. typedef vector<D> VI;
  46. typedef set<D> SI;
  47. typedef vector<D>::iterator Viti;
  48.  
  49. /***********Template Ends Here***********/
  50.  
  51. int gcd(int a,int b)
  52. {
  53.     if(b==0) return a;
  54.     return gcd(b,a%b);
  55. }
  56.  
  57. int lcm(int a,int b)
  58. {
  59.     return a*(b/gcd(a,b));
  60. }
  61.  
  62. int main()
  63. {
  64.     char str[21];
  65.     int i,cnt,ans;
  66.     while(1)
  67.     {
  68.         cin>>str;
  69.         if(str[0]=='*') break;
  70.         vector<int>tocheak;
  71.         vector<int>tocount;
  72.         for(i=0; str[i] ; i++)
  73.         {
  74.             if(str[i]=='N') tocheak.pb(i+1);
  75.             else tocount.pb(i+1);
  76.         }
  77.         if(tocount.size())
  78.         {
  79.             cnt=tocount[0];
  80.             for(i=1; i<tocount.size(); i++)
  81.                 cnt=lcm(cnt,tocount[i]);
  82.             ans=cnt;
  83.             for(i=0; i<tocheak.size(); i++)
  84.             {
  85.                 if(cnt%tocheak[i]==0)
  86.                 {
  87.                     ans=-1;
  88.                     break;
  89.                 }
  90.             }
  91.             cout<<ans<<endl;
  92.         }
  93.         else cout<<-1<<endl;
  94.     }
  95.     return 0;
  96. }
  97.  
  98.  
Success #stdin #stdout 0s 3480KB
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YYNYY
YYYNNN
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20
-1
https://ideone.com/D4c4Me
language:
C++ (gcc 8.3)
created:
9 years ago
visibility:
public

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