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  1. #include <stdio.h>
  2. #include <string.h>
  3.  
  4. int main(void)
  5. {
  6.     char str[1000];
  7.     int i, len;
  8.     gets(str)		 // DO NOT USE THIS!
  9.     len = strlen(str);
  10.     for(i=len-1; i>=0; i--)  printf("%c",str[i]);
  11.     return 0;
  12. }
Compilation error #stdin compilation error #stdout 0s 2296KB
comments (?)
stdin
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ABCDEFGHIJK
compilation info 
prog.c: In function ‘main’:
prog.c:8:5: warning: ‘gets’ is deprecated (declared at /usr/include/stdio.h:638) [-Wdeprecated-declarations]
     gets(str)   // DO NOT USE THIS!
     ^
prog.c:9:5: error: expected ‘;’ before ‘len’
     len = strlen(str);
     ^
stdout
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Standard output is empty
https://ideone.com/EFnb7e
language:
C (gcc 8.3)
created:
11 years ago
visibility:
secret

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