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  1. #include<bits/stdc++.h>
  2. using namespace std;
  3. typedef long long ll;
  4. #define IOS ios_base :: sync_with_stdio(0), cin.tie(0), cout.tie(0)
  5. int main()
  6. {
  7.     IOS;
  8.     int t, csno=0;
  9.     cin >> t;
  10.     ll p, a, b;
  11.     while(t--){
  12.         cin >> p;
  13.         cout << "Case " << ++csno << ": ";
  14.         if(p==2)
  15.             cout << "1 1\n";
  16.         else if( p % 4LL != 1LL)
  17.             cout << "Impossible\n";
  18.         else{
  19.             ll limit = sqrt(p);
  20.             for(a=limit; a>=1; --a){
  21.                 b = p - (a*a);
  22.                 b = sqrt(b);
  23.                 if(a*a + b*b == p){
  24.                     cout << min(a,b)<< " " << max(a,b) << endl;
  25.                     break;
  26.                 }
  27.             }
  28.         }
  29.     }
  30.     return 0;
  31. }
  32.  
Time limit exceeded #stdin #stdout 5s 15240KB
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https://ideone.com/L3lyjf
language:
C++14 (gcc 8.3)
created:
5 years ago
visibility:
public

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