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  1. #include <iostream>
  2. using namespace std;
  3. #include <bits/stdc++.h>
  4. #include<vector>
  5. #include<string>
  6.  
  7. int digit_count(int x)
  8. {
  9. 	int count=0;
  10. 	//return 
  11. 	//cout<<to_string(x).length();
  12. 	 //return to_string(x).length();
  13.  
  14. 	if(x==0)
  15. 	 {
  16. 	 	return 1;
  17. 	 }
  18. 	 else
  19. 	  {
  20. 	  	while(x!=0)
  21. 	  	 {
  22. 	  	 	x=x/10;
  23. 	  	   count++;
  24. 	  	 }
  25. 	  }
  26. 	  return count;
  27.  
  28. }
  29. int main() {
  30. 	// your code goes here
  31.     int n;
  32. 	cin>>n;
  33. 	vector<int>arr(n+1);
  34. 	int i=1;
  35. 	while(i<=n)
  36. 	 {
  37. 	 	cin>>arr[i];
  38. 	 	i++;
  39. 	 }
  40.  
  41.  
  42. 	 int d[10]={0};
  43. 	 int right_sum=0;
  44. 	 for(int i=1;i<=n;i++)
  45. 	  {
  46. 	  	right_sum=right_sum+arr[i];
  47. 	  }
  48.  
  49. 	  for(int i=1;i<=n;i++)
  50. 	   {
  51. 	   	int x  = digit_count(arr[i]);
  52. 	   	d[x]=d[x]+1;
  53. 	   //	cout<<d[1]<<'\n';
  54.  
  55. 	   }
  56.  
  57. 	  int ans=0,left=0,p=0;
  58. 	  for(int i=1;i<=n;i++)
  59. 	   { left=0;
  60. 	   	 int j=1;
  61. 	   	  while(j<=6)
  62. 	   	   {
  63. 	   	   	 left+=arr[i]*pow(10,j)*d[j];
  64.              j++;   	 
  65. 	   	   }
  66.  
  67. 	   	   int v=left+right_sum;
  68. 	   	   ans+=v;
  69. 	   }
  70. 	   cout<<ans;
  71.  
  72.  
  73.  
  74. 	return 0;
  75. }
Success #stdin #stdout 0s 5292KB
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https://ideone.com/sHpoc6
language:
C++ (gcc 8.3)
created:
6 hours ago
visibility:
public

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