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  1. #include <stdio.h>
  2. #include <string.h>
  3.  
  4. int main(void) {
  5. 	int g=0;
  6.  
  7. 	char s[10000]={'\0'};
  8. 	while(~scanf("%s",s+1)){
  9. 	int last, cur, next[10000]={0};
  10. 		int n=strlen(s+1);
  11. 		last=0;
  12. 		cur=0;
  13.  
  14.  
  15. 	next[0]=0;
  16.  
  17. 		for(int i=1;i<=n;i++){
  18. 			char ch=s[i];
  19. 			if(ch == '['){cur=0;}
  20. 			else if(ch == ']'){cur=last;}
  21. 			else{
  22. 				next[i]=next[cur];
  23. 				next[cur]=i;
  24. 				if(cur==last) last=i;
  25. 				cur=i;
  26. 			}
  27. 		}
  28.  
  29. 		char t[10000]={'\0'};
  30. 		int k=0;
  31. 		for(int ii=next[0];ii!=0;ii=next[ii]){
  32. 	t[k++]=s[ii];
  33.  
  34. 	}
  35.  
  36. int ct=0; 
  37.  
  38. 	for(int j=0;j<=strlen(t);j++){
  39.  
  40. 		if(t[j]=='^'){
  41. 			ct+=1;
  42.  
  43.  
  44. 		if(t[j+1]!='^'){ 
  45.  
  46. 			for(int jct=(j-ct*2+1);jct<j+1;jct++){ 
  47.  
  48. 				t[jct]='@';  
  49.  
  50. 			}
  51. 			ct=0;
  52. 		}
  53.  
  54. 	   }
  55. 	}
  56.  
  57. for(int kk=0;kk<strlen(t);kk++){
  58.  
  59. 	if(t[kk]!='@' && t[kk]!='\0'){printf("%c",t[kk]);}
  60.  
  61. }
  62.  
  63.  
  64.  
  65. printf("\n");
  66.  
  67. 	}
  68. 	return 0;
  69. }
Success #stdin #stdout 0s 9424KB
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Welcome_[to]_NCCU
[][[]]]]Hello_world
Hello_C^^
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Hello_world
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https://ideone.com/leJGHJ
language:
C (gcc 8.3)
created:
5 years ago
visibility:
public

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