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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. int main() {
  5. 	string s;
  6. 	cin >> s;
  7. 	reverse(s.begin(), s.end());
  8.         vector<char> v;
  9.         string s1;
  10.         char ch, temp;
  11.         ch = ' ';
  12.         s += ch;
  13.         for(int i=0; i<s.size(); i++)
  14.         {
  15.             if(s[i] != ' ')
  16.             {
  17.                 temp = s[i];
  18.                 v.push_back(temp);
  19.             }
  20.             else if(s[i] == ' ')
  21.             {
  22.                 reverse(v.begin(), v.end());
  23.                 for(int i=0; i<v.size(); i++)
  24.                 {
  25.                     s1 += v[i];
  26.                 }
  27.                 s1 += ch;
  28.                 v.clear();
  29.             }
  30.         }
  31.         s1.pop_back();
  32.         for(int i=0; i<s1.size(); i++)
  33.         {
  34.             if(s1[i] == ' ' && s1[i+1] == ' ')
  35.             {
  36.                 s1.erase(i, i+1);
  37.             }
  38.         }
  39.         if(s1[0] == ' ')
  40.         {
  41.             s1.erase(0, 1);
  42.         }
  43.         cout << s1[2];
  44. 	return 0;
  45. }
Success #stdin #stdout 0.01s 5448KB
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language:

						
C++14 (gcc 8.3)

					

					

						
created:
								
						
1 year ago

					

					

						
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