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  1. # include <stdio.h>
  2.  
  3. void myStrcat(char s[], char t[]){
  4. 	int i;
  5. 	for(i=0;s[i]!='\0';i++){
  6. 		//終わりを把握するだけだから空
  7. 	}
  8. 	int k;
  9. 	for(k=0;t[k]!='\0';k++){
  10. 		s[i]=t[k];//iが上のまんま維持されてる、新しい配列作らない
  11. 		i++;
  12. 	}
  13. }
  14.  
  15. int main(){
  16.     char s[100];
  17.     char t[100];
  18.     scanf("%s %s",s,t);
  19.     printf("%s + %s",s,t);
  20.     myStrcat(s,t);
  21.     printf(" -> %s\n",s);
  22.     return 0;
  23. }
  24.  
Success #stdin #stdout 0s 5268KB
comments (?)
stdin
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abc def
stdout
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abc + def -> abcdef
https://ideone.com/96dDSQ
language:
C (gcc 8.3)
created:
1 day ago
visibility:
public

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