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  1. #include <string.h>
  2. #include <stdlib.h>
  3. #include <stdio.h>
  4.  
  5. int main()
  6. {
  7. #define len 300
  8.     char st1[len], st2[len];
  9.     printf("1st string: ");
  10.     fgets(st1, len, stdin);
  11.     printf("2nd string: ");
  12.     fgets(st2, len, stdin);
  13.     if (strlen(st1) != strlen(st2))
  14.     {
  15.         fprintf(stderr,"strlen(st1) != strlen(st2)\n");
  16.         return 1;
  17.     }
  18.  
  19.     printf("\n\n1st string: %s",st1);
  20.     printf("2nd string: %s",st2);
  21.  
  22.     for(int i = 1; i < strlen(st2); i+=2)
  23.         st1[i] = st2[i];
  24.     printf("Res string: %s",st1);
  25. }
  26.  
  27.  
  28.  
Success #stdin #stdout 0s 4556KB
comments (?)
stdin
copy 
abcdefgh
ijklmnop
stdout
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1st string: 2nd string: 

1st string: abcdefgh
2nd string: ijklmnop
Res string: ajclengp
https://ideone.com/Icjqbt
language:
C (gcc 8.3)
created:
5 years ago
visibility:
public

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