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  1. #include <iostream>
  2. #include <string.h>
  3. using namespace std;
  4. #define MAX 300
  5.  
  6. int myStrcmp(char s1[], char s2[]);
  7. int myStrlen(char s[], int k);
  8. void myStrcpy(char s[], int vt, char s1[], int k);
  9. void mySubstr(char s[], int b, int count, char ss[]);
  10. bool myStrcat(char s1[], char s2[]);
  11. void StringReverse(char st[]);
  12.  
  13. int main()
  14. {
  15.     char s[MAX];
  16.     fgets(s, 300, stdin);
  17.     if(myStrcmp(s, "") == 0)
  18.         cout << "Chuoi rong." << endl;
  19.     else
  20.     {
  21.         StringReverse(s);
  22.         cout << s << endl;
  23.     }
  24.     return 0;
  25. }
  26.  
  27. int myStrlen(char s[], int k)
  28. {
  29.     k = 0;
  30.     while(s[k] != '\0' && s[k] != '\n')
  31.         k++;
  32.     return k;
  33. }
  34.  
  35. int myStrcmp(char s1[], char s2[])
  36. {
  37.     if(s1[0] == '\n' || s1[0] == '\0')
  38.         return 0;
  39.     return 1;
  40. }
  41.  
  42. void StringReverse(char st[])
  43. {
  44.     int len = myStrlen(st, len), temp;
  45.     bool check = true;
  46.     for(int i = 0; i < len; i++)
  47.         if(st[i] == ' ')
  48.         {
  49.             check = false;
  50.             break;
  51.         }
  52.     if(check)
  53.     {
  54.         for(int i = 0; i < len; i++)
  55.             cout << st[i];
  56.         st[0] = '\0';
  57.         return;
  58.     }
  59.     for(temp = len - 1; temp >= 0; temp--)
  60.     {
  61.         if(st[temp] == ' ')
  62.             break;
  63.     }
  64.     for(int i = temp + 1; i < len; i++)
  65.         cout << st[i];
  66.     cout << ' ';
  67.     for(int i = temp; i >= 0; i--)
  68.         if(st[i] == ' ')
  69.             for(int j = i - 1; j >= 0; j--)
  70.                 if(st[j] == ' ')
  71.                 {
  72.                     for(int k = j + 1; k < i; k++)
  73.                     {
  74.                         cout << st[k];
  75.                     }
  76.                     i = j;
  77.                     cout << ' ';
  78.                 }
  79.     temp = 0;
  80.     while(st[temp] != ' ')
  81.         cout << st[temp++];
  82.     st[0] = '\0';
  83.     return;
  84. }
Success #stdin #stdout 0s 5280KB
comments (?)
stdin 
Standard input is empty
stdout 
��
https://ideone.com/0vIlHD
language:
C++14 (gcc 8.3)
created:
11 days ago
visibility:
public

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