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  1. #include <stdio.h>
  2. #include <math.h>
  3. int giaithua(int x)
  4. {
  5.     if(x==1)
  6.     {
  7.         return 1;
  8.     }
  9.     return x*giaithua(x-1);
  10.   // ham tinh giai thua
  11. }
  12. void strong(int a)
  13. {
  14.     for(int i=1;i<=a;i++)
  15.     {
  16.         int tong=0;
  17.         int n=i;
  18.         int b;
  19.         while(n>9)
  20.         {
  21.             b=n-(n/10)*10;// sao lai loi o day
  22.             n/10;
  23.             tong=tong+giaithua(b);
  24.         }
  25.         if(n<10);
  26.         {
  27.             tong=tong+giaithua(n);
  28.         }
  29.         if(i==tong)
  30.         {
  31.             printf("%d ", i);
  32.         }
  33.     }
  34.     // ham tim so strong 
  35. }
  36. int main()
  37. {
  38.  int a;
  39.  scanf("%d", &a);
  40.  strong(a);
  41.  return 0;
  42. }
  43.  
Time limit exceeded #stdin #stdout 5s 5392KB
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stdout 
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https://ideone.com/Ki22ez
language:
C (gcc 8.3)
created:
2 years ago
visibility:
secret

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