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  1. #include <stdlib.h>
  2. #include <stdio.h>
  3. #include <string.h>
  4.  
  5. char * doit(char * s)
  6. {
  7.     int levl = 0;
  8.     for(char * c = s; *c; ++c)
  9.     {
  10.         if (*c == '(')
  11.         {
  12.             levl++;
  13.             if (levl == 2) *c = '['; else if (levl > 2) *c = '{';
  14.         }
  15.         else if (*c == ')')
  16.         {
  17.             if (levl == 2) *c = ']'; else if (levl > 2) *c = '}';
  18.             levl--;
  19.             if (levl < 0) return NULL;
  20.         }
  21.     }
  22.     return (levl == 0) ? s : NULL;
  23. }
  24.  
  25. int main()
  26. {
  27.     char s[] = "hgacsh(jhjh jhbhj ( uhghgv (bnv) jhih (jhjkh( lkjhjh))jhgjh) hjhj)ghj";
  28.     char q[] = "hgacsh(jhjh jhbhj ( uhghgv (bnv) jh ) ih (jhjkh( lkjhjh))jhgjh) hjhj)ghj";
  29.     char r[] = "hgacsh(jhjh jhbhj ( uhghgv (bnv) jh ( ih (jhjkh( lkjhjh))jhgjh) hjhj)ghj";
  30.  
  31.     char * res = doit(s);
  32.     if (res) printf("%s\n",res); else puts("Wrong string!");
  33.  
  34.     res = doit(q);
  35.     if (res) printf("%s\n",res); else puts("Wrong string!");
  36.  
  37.     res = doit(r);
  38.     if (res) printf("%s\n",res); else puts("Wrong string!");
  39.  
  40.  
  41. }
  42.  
Success #stdin #stdout 0s 4880KB
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stdin
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Standard input is empty
stdout
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hgacsh(jhjh jhbhj [ uhghgv {bnv} jhih {jhjkh{ lkjhjh}}jhgjh] hjhj)ghj
Wrong string!
Wrong string!
https://ideone.com/6Vje1U
language:
C (gcc 8.3)
created:
3 years ago
visibility:
public

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