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  1. #include <bits/stdc++.h>
  2.  
  3. using namespace std;
  4.  
  5. int n, num = 0;
  6. string t, s = "";
  7. char c, k;
  8.  
  9. int main()
  10. {
  11.     cin >> n;
  12.     cin >> t;
  13.     for (int i = 0; i <n;) {
  14.        c = t[i];
  15.        num = 0;
  16.        if (c >= 'a' && c <= 'z') {
  17.            ++i;
  18.            if (t[i] >= '0' && t[i] <= '9') {
  19.                 while (t[i] >= '0' && t[i] <= '9') {
  20.                     num *= 10;
  21.                     num += t[i] - '0';
  22.                     ++i;
  23.                 }
  24.                 for (int j = 0; j < num; ++j)
  25.                     cout << c;
  26.             } else {
  27.                 cout << c;
  28.                 c = t[i];
  29.             }
  30.        }
  31.     }
  32.  
  33.     return 0;
  34. }
  35.  
Success #stdin #stdout 0s 3464KB
comments (?)
stdin
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11
a2b3c4d5e10
stdout
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aabbbccccdddddeeeeeeeeee
https://ideone.com/ufirvq
language:
C++14 (gcc 8.3)
created:
7 years ago
visibility:
public

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