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  1. #include<bits/stdc++.h>
  2. using namespace std;
  3. #define endl '\n'
  4. #define int long long
  5. const int MOD = pow(10,9)+7;
  6. const int MOD2 = 998244353;
  7. const int INF = LLONG_MAX/2;
  8.  
  9. int primes[1000000];
  10.  
  11. void seive(){
  12.     fill(primes, primes + 1000000, 1);
  13.     primes[0] = primes[1] = 0;
  14.     for(int i = 2 ; i*i < 1000000 ; i++){
  15.         if(primes[i]){
  16.             for(int j = i*i ; j < 1000000 ; j += i){
  17.                 primes[j] = 0;
  18.             }
  19.         }
  20.     }
  21. }
  22. void solve() {
  23.     seive();
  24.     for(int i = 0 ; i<=100; i++){
  25.         if(primes[i]==1){
  26.             cout<<i<<" ";
  27.         }
  28.     }
  29.     cout<<endl;
  30. }
  31.  
  32. signed main(){
  33.     ios::sync_with_stdio(false); cin.tie(NULL);
  34.     //int t;
  35.     //cin >> t;
  36.     //while(t--){
  37.         solve();
  38.     //}
  39.     return 0;
  40. }
Success #stdin #stdout 0.01s 11376KB
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2 3 5 7 11 13 17 19 23 29 31 37 41 43 47 53 59 61 67 71 73 79 83 89 97
https://ideone.com/o1tHEv
language:
C++14 (gcc 8.3)
created:
8 hours ago
visibility:
public

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