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erfanul007

LA 3399

Mar 16th, 2019
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  1. #include<bits/stdc++.h>
  2. using namespace std;
  3.  
  4. typedef unsigned long long int ull;
  5. typedef long long int ll;
  6. typedef vector<int> vi;
  7. typedef vector<ll> vll;
  8. typedef vector<vi> vvi;
  9. typedef pair<int,int > pii;
  10. typedef vector< pii > vpii;
  11. typedef set<int> sti;
  12.  
  13. #define sc scanf
  14. #define pf printf
  15. #define sci(n) scanf("%d",&n)
  16. #define scl(n) scanf("%lld",&n)
  17. #define scd(n) scanf("%lf",&n)
  18. #define scs(s) scanf("%s",s)
  19. #define pfi(n) printf("%d",n)
  20. #define pfl(n) printf("%lld",n)
  21. #define pff(n) cout<<n
  22. #define line printf("\n")
  23. #define spc printf(" ")
  24. #define loop(i,x,y) for(int i=int(x); i<=int(y); i++)
  25. #define rloop(i,y,x) for(int i=int(y); i>=int(x); i--)
  26. #define cspf(i) printf("Case %d: ", i)
  27. #define pb push_back
  28. #define mp make_pair
  29. #define ff first
  30. #define ss second
  31. #define all(v) v.begin(),v.end()
  32. #define rall(v) v.rbegin(),v.rend()
  33. #define clr(arr,val) memset(arr,val,sizeof arr);
  34. #define read() freopen("input.txt", "r", stdin)
  35. #define write() freopen("output.txt", "w", stdout)
  36. /// Constants
  37. #define eps 1e-9
  38. #define PI acos(-1.0) // 3.1415926535897932
  39. #define MAX 1000007
  40.  
  41. bool chk[20009];
  42. vi prime;
  43. void seive()
  44. {
  45. clr(chk,0);
  46. chk[0]=1;
  47. chk[1]=1;
  48. for(int i=2;i<20005;i++){
  49. if(chk[i]) continue;
  50. prime.pb(i);
  51. for(int j=2;i*j<20005;j++){
  52. chk[i*j]=1;
  53. }
  54. }
  55. }
  56.  
  57. int main(){
  58. //read();
  59. // write();
  60. //ios_base::sync_with_stdio(false);
  61. //cin.tie(NULL);
  62. seive();
  63. int n;
  64. while(cin>>n && n){
  65. int cnt=0;
  66. for(int i=0;prime[i]<=n;i++){
  67. int temp=n,j=i;
  68. while(temp>0){
  69. temp-=prime[j];
  70. j++;
  71. }
  72. if(temp==0){
  73. cnt++;
  74. }
  75. }
  76. cout<<cnt<<"\n";
  77. }
  78. return 0;
  79. }
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