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  1. #include <bits/stdc++.h>
  2. #define int long long
  3. using namespace std;
  4. long getDataDependenceSum(long n) {
  5.     int sum = 0, x = 1;
  6.     map<int, int> seen;
  7.     while(x * x <= n) {
  8.         if(!seen.count(x)) {
  9.             sum += x;
  10.             seen[x] = 1;
  11.         }
  12.         if(!seen.count(n / x)) {
  13.             sum += n / x;
  14.             seen[n / x] = 1;
  15.         }
  16.         x++;
  17.     }
  18.     return sum;
  19. }
  20. signed main()
  21. {
  22.     cout << getDataDependenceSum(10000000000) << endl;
  23.     return 0;
  24. }
Success #stdin #stdout 0.13s 16016KB
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stdin
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10000000000
stdout
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125901361610
https://ideone.com/j09uzP
language:
C++ (gcc 8.3)
created:
8 days ago
visibility:
public

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