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  1. #include<bits/stdc++.h>
  2. long long int len;
  3. long long int dp[5001];
  4. char str[5001];
  5. long long int solve(int i)
  6. {
  7. if(str[i]=='0')
  8. return 0;
  9. if(i+1>=len)
  10. return 1;
  11. if(dp[i])
  12. return dp[i];
  13. long long int ans=0;
  14. ans+=solve(i+1);
  15. if(i+1<len && 10*(str[i]-'0')+(str[i+1]-'0')<=26)
  16. ans+=solve(i+2);
  17. return dp[i]=ans;
  18. }
  19. int main()
  20. {
  21. while(1)
  22. {
  23. scanf("%s",str);
  24. if(str[0]=='0')
  25. break;
  26. memset(dp,0,5001);
  27. len=strlen(str);
  28. printf("%lld\n",solve(0));
  29. }
  30. return 0;
  31. }
  32.  
Runtime error #stdin #stdout 0.02s 3188KB
stdin
Standard input is empty
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