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  1. #include <iostream>
  2. using namespace std;
  3. // #include <iostream>
  4. // using namespace std;
  5.  
  6. struct table
  7. {
  8.     int idx;
  9.     char text[20];
  10.  
  11. };
  12.  
  13. struct table data[] =
  14. {
  15.     {0, "Goodnight"},
  16.     {4, "Goodmorning"},
  17.     {12, "Goodafternonn"},
  18.     {18, "Goodevening"},
  19.     {23, "Goodnight"}
  20. };
  21.  
  22. int main()
  23. {
  24.     int n;
  25.     while (1)
  26.     {
  27.         cout << "何時（0～23）";
  28.         cin >> n;
  29.         if (n == -1)return 0;
  30.         if ((n < 0) || (n > 23))continue;
  31.         for (int i = sizeof(data) / sizeof(data[0]); --i >= 0;)
  32.         {
  33.             if (n >= data[i].idx)
  34.             {
  35.                 cout << data[i].text << endl;
  36.                 break;
  37.             }
  38.         }
  39.     }
  40.     return 0;
  41. }
  42.  
Success #stdin #stdout 0s 3300KB
comments (?)
stdin
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0
5
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15
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25
-5
-1
stdout
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何時（0～23）Goodnight
何時（0～23）Goodmorning
何時（0～23）Goodmorning
何時（0～23）Goodafternonn
何時（0～23）Goodevening
何時（0～23）何時（0～23）何時（0～23）
https://ideone.com/47VWwF
language:
C++ (gcc 8.3)
created:
10 years ago
visibility:
public

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