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  1. #include<iostream>
  2.  
  3. int main(void) {
  4.     using namespace std;
  5.  
  6.     char c;
  7.     int cnt[10] = { 0 };          //配列cntの全要素を0で初期化
  8.  
  9.     while (cin.get(c)) {
  10.         if (c >= '0' && c <= '9')
  11.             cnt[c - '0']++;
  12.     }
  13.     for (int i = 0; i < 10; i++)
  14.         cout << i << "の出現回数:" << cnt[i] << '\n';
  15.  
  16.     getchar();
  17.     cin.ignore();
  18.     return(0);
  19. }
Success #stdin #stdout 0s 3460KB
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stdin
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Standard input is empty
stdout
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0の出現回数:0
1の出現回数:0
2の出現回数:0
3の出現回数:0
4の出現回数:0
5の出現回数:0
6の出現回数:0
7の出現回数:0
8の出現回数:0
9の出現回数:0
https://ideone.com/WchzmX
language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
public

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