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  1. #include <bits/stdc++.h>
  2. #define ll long long
  3. using namespace std;
  4. int to_dicemal(string s) {
  5.     int len = s.length();
  6.     int res = 0;
  7.     for (int i = 0; i < len; i++) {
  8.         if (s[i] == '1') {
  9.             res+=pow(2,i);
  10.         }
  11.     }
  12.     return res;
  13. }
  14. string toBinary(int n)
  15. {
  16.     string r="";
  17.     while(n!=0) {r=(n%2==0 ?"0":"1")+r; n/=2;}
  18.     return r;
  19. }
  20.  
  21. int main() {
  22.    ll T ;
  23.     cin >> T;
  24.     ll N,X;
  25.     cin >> N>>X;
  26.   if (T==1) {
  27.       cout << to_dicemal(to_string(N)) << "\n";
  28.   }
  29.     else {
  30.         cout << toBinary(N) << "\n";
  31.  
  32.     }
  33.     return 0;
  34. }
  35.  
Success #stdin #stdout 0.01s 5288KB
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https://ideone.com/dAzdIJ
language:
C++ (gcc 8.3)
created:
30 days ago
visibility:
public

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