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  1. #include <stdio.h>
  2.  
  3. int main(void) {
  4. 	char ch, prev_ch, next_ch;
  5.  
  6. 	printf("문자? ");
  7. 	scanf("%c", &ch); //문자 입력
  8.  
  9. 	prev_ch = ch - 1; //ch 이전 문자
  10. 	next_ch = ch + 1; //ch 다음 문자
  11. 	printf("prev_ch = %c, %d, %#2X\n", prev_ch, prev_ch, prev_ch);
  12. 	printf("ch      = %c, %d, %#2X\n", ch, ch, ch);
  13. 	printf("next_ch = %c, %d, %#2X\n", next_ch, next_ch, next_ch);
  14.  
  15. 	return 0;
  16. }
  17.  
Success #stdin #stdout 0s 5320KB
comments (?)
stdin
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Standard input is empty
stdout
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문자? prev_ch = �, -1, 0XFFFFFFFF
ch      = , 0,  0
next_ch = , 1, 0X1
https://ideone.com/LL40Iw
language:
C (gcc 8.3)
created:
12 days ago
visibility:
public

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