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  1. /*
  2. *DIV 2 C.
  3. *LINK:
  4. *nilabja10201992
  5. */
  6. #include <bits/stdc++.h>
  7. using namespace std;
  8.  
  9. #define inf (1<<30)
  10. #define INF (int)1e9
  11. #define EPS 1e-9
  12. #define PI 3.1415926535897932384626433832795
  13. #define MOD 1000000007
  14. #define MAX 1000000
  15.  
  16. #define write(x) freopen(x,"w",stdout);
  17. #define read(x) freopen(x,"r",stdin);
  18. #define D(x)        cerr << #x " = " << (x) <<endl;
  19.  
  20. inline int setBit(int N, int pos) { return N = N | (1<<pos);}
  21. inline int resetBit(int N, int pos) { return N = N & ~(1<<pos);}
  22. inline bool checkBit(int N, int pos) { return (bool) (N & ( 1<<pos));}
  23.  
  24. //int fx[] = {+0, +0, +1, -1, -1, +1, -1, +1};
  25. //int fy[] = {-1, +1, +0, +0, +1, +1, -1, -1};
  26.  
  27. typedef long long ll;
  28. typedef unsigned long long ui64;
  29. typedef string st;
  30. typedef long long int lli;
  31. typedef vector<int> vi;
  32. typedef vector<st> vs;
  33. typedef map<int,int> mii;
  34. typedef map<st,int> msi;
  35. typedef set<int> si;
  36. typedef set<st> ss;
  37. typedef pair<int,int> pii;
  38. typedef vector<pii> vpii;
  39. typedef vector<ll> vll;
  40. int dp[MAX];
  41. int main() {
  42.       ios_base::sync_with_stdio(false);
  43.       cin.tie(NULL);
  44. 	string str;
  45. 	while(1){
  46. 		cin>>str;
  47. 		if(str=="0")
  48. 			break;
  49. 		if(str[0]=='0'){
  50. 			cout<<0<<endl;
  51. 		}
  52. 		else{
  53. 			dp[0]=1;
  54. 			dp[1]=1;
  55. 			bool fl=0;
  56. 			for(int i=1;i<str.size();i++){
  57. 				if(str[i]!=0)
  58. 					dp[i+1]=dp[i];
  59. 				else
  60. 					dp[i+1]=dp[i-1];
  61. 				int temp=0;
  62. 				if(str[i-1]!='0')
  63. 				 	temp=(str[i-1]-'0')*10 + (str[i]-'0');
  64. 				if(temp<=26 && temp>0 && str[i]!='0' && str[i+1]!='0'){
  65. 					dp[i+1]+=dp[i-1];
  66. 				}
  67. 				if(str[i]=='0' && str[i-1]!='2' && str[i-1]!='1'){
  68. 					cout<<0<<endl;
  69. 					fl=1;
  70. 					break;
  71. 				}
  72. 				D(dp[i+1]);
  73. 			}
  74. 			if(!fl)
  75. 				cout<<dp[str.size()]<<endl;
  76. 		}
  77.  
  78. 	}
  79. 	//cout<<"Execution time : "<<tick();
  80.       return 0;
  81. }
  82.  
Runtime error #stdin #stdout 0.03s 19968KB
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https://ideone.com/Lfjwtz
problem ACODE, based on SPOJ submission 18731922 (CPP14), 2017-02-09 18:08:48
language:
C++14 (gcc 8.3)
created:
7 years ago
visibility:
secret

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