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  1. #include <stdio.h>
  2.  
  3. int coins[5] = { 1, 5, 10, 20, 100 };
  4.  
  5. long long int save[1000001][5];
  6.  
  7. long long int get(int n, int k)
  8. {
  9.     if (n < 0 || k < 0) return 0;
  10.     if (k == 0)
  11.     {
  12.         if (n == coins[k]) return 1;
  13.         if (n == 0) return 1;
  14.     }
  15.     else if (n == 0) return 1;
  16.  
  17.     if (save[n][k]) return save[n][k];
  18.     return (save[n][k] = get(n-coins[k],k) + get(n,k-1));
  19. }
  20.  
  21. int main(int argc, const char * argv[])
  22. {
  23.     int n;
  24.     scanf("%d",&n);
  25.     printf("%d - %lld\n",n,get(n,4));
  26.     scanf("%d",&n);
  27.     printf("%d - %lld\n",n,get(n,4));
  28. }
  29.  
  30.  
Success #stdin #stdout 0.02s 41112KB
comments (?)
stdin
copy 
1000 1000000
stdout
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1000 - 543686
1000000 - 416783343416935001
https://ideone.com/68CAS2
language:
C (gcc 8.3)
created:
5 years ago
visibility:
public

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