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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. int main() {
  5. int t;
  6. cin >> t;
  7. while(t--)
  8. {
  9. 		string s,p;
  10. 		cin >> s >> p;
  11. 		char c,d;
  12. 		c = s[0];
  13. 		d =p[0];
  14. 		s[0] = d;
  15. 		p[0] = c;
  16.  
  17. 		cout << s << " " << p << endl;
  18.  
  19. }
  20. 	return 0;
  21. }
Success #stdin #stdout 0.01s 5272KB
comments (?)
stdin
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6
bit set
cat dog
hot dog
uwu owo
cat cat
zzz zzz
stdout
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sit bet
dat cog
dot hog
owu uwo
cat cat
zzz zzz
https://ideone.com/BUa1us
language:
C++ (gcc 8.3)
created:
1 day ago
visibility:
public

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