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  1. #include <algorithm>
  2. #include<iostream>
  3. #include <set>
  4. using namespace std;
  5. void capital(char &ch) {
  6.     if (ch >= 'a' && ch <= 'z') {
  7.         ch = ch - 32;
  8.     }
  9. }
  10. int main() {
  11.     char start, end;
  12.     cout << "from :" << endl;
  13.     cin >> start;
  14.     capital(start);
  15.  
  16.     cout << "to :" << endl;
  17.     cin >> end;
  18.     capital(end);
  19.     cout << "enter characters:" << endl;
  20.     set<char> s;
  21.     while (true) {
  22.         char c;
  23.         cin >> c;
  24.         capital(c);
  25.         if (c == '0')break;
  26.         s.insert(c);
  27.     }
  28.     int count = 0;
  29.     for (; start <= end; start++) {
  30.         if (s.find(start) != s.end()) {
  31.             continue;
  32.         }
  33.         cout << ++count << " : " << start << endl;
  34.     }
  35.     cout << "sheet" << count + s.size() << endl;
  36.     cout << "solved :" << s.size()<<endl;
  37.     cout << "remaining :" << count << endl;
  38.  
  39.     return 0;
  40. }
  41.  
Success #stdin #stdout 0s 5320KB
comments (?)
stdin
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A
T
S
O
T
R
Q
P
N
M
L
K
J
I
G
H
0
stdout
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from :
to :
enter characters:
1 : A
2 : B
3 : C
4 : D
5 : E
6 : F
sheet20
solved :14
remaining :6
https://ideone.com/sBEcEO
code for count problem nums
language:
C++14 (gcc 8.3)
created:
6 days ago
visibility:
public

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