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  1. #include<stdio.h>
  2. void fun1(char* s1, char* s2){
  3.     char* temp;
  4.     temp = s1;
  5.     s1 = s2;
  6.     s2 = temp;
  7. }
  8. void fun2(char* s1, char* s2){
  9.     char* temp;
  10.     temp = *s1;
  11.     *s1 = *s2;
  12.     *s2 = temp;
  13. }
  14. int main(){
  15.     char *str1="Hi", *str2 = "Bye";
  16.     fun1(str1, str2); printf("%s %s", str1, str2);
  17.     fun2(&str1, &str2); printf("%s %s", str1, str2);
  18.     return 0;
  19. }
  20.  
Success #stdin #stdout 0s 5532KB
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stdin
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Standard input is empty
stdout
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Hi ByeBye Hi
https://ideone.com/WOdFCN
language:
C (gcc 8.3)
created:
2 years ago
visibility:
public

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