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  1. #include <stdio.h>
  2. #include <stdlib.h>
  3. #include <string.h>
  4. #define MAX 100
  5.  
  6. int main(){
  7.     system("cls");
  8.  
  9.     char Str1[MAX]= "Hom nay thoi tiet mat mat";
  10.     char Str2[MAX]= "mat";
  11.  
  12.     // printf("nhap vao str1: ");
  13.     // gets(Str1);
  14.     // printf("Nhap vao str2: ");
  15.     // gets(Str2);
  16.  
  17.     int n = 0, m = 0, kp = 0;
  18.     int doDaiStr2 = strlen(Str2);
  19.  
  20. while (Str1[n] != '\0')
  21.     {
  22.         if (Str1[n] == Str2[m])
  23.         {
  24.             while (Str1[n] == Str2[m] && Str1[n] != '\0')
  25.             {
  26.                 n++;
  27.                 m++;
  28.             }
  29.             if (m == doDaiStr2 && (Str1[n] == ' ' || Str1[n] == '\0'))
  30.             {
  31.                 kp++;
  32.             }
  33.         }else{
  34.             while (Str1[n] != ' ')
  35.             {
  36.                 n++;
  37.                 if(Str1[n] == '\0')
  38.                 break;
  39.             }   
  40.         }
  41.         n++;
  42.         m = 0;      
  43.     }
  44.     if (kp > 0)
  45.     {
  46.         printf("Chuoi \"%s\" tim duoc trong chuoi \"%s\" va  so lan xuat hien la: %d", Str2, Str1, kp);
  47.     }else{
  48.         printf("Chuoi \"%c\" tim duoc trong chuoi \"%c\"", Str2, Str1);
  49.  
  50.     }
  51.  
  52.     return 0;
  53. }
  54.  
  55.  
Success #stdin #stdout #stderr 0.01s 5304KB
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stdin
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Standard input is empty
stdout
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Chuoi "mat" tim duoc trong chuoi "Hom nay thoi tiet mat mat" va  so lan xuat hien la: 2
stderr
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sh: 1: cls: not found
https://ideone.com/iO9L5Z
Tìm kiếm chuỗi con trong một chuỗi
language:
C (gcc 8.3)
created:
11 days ago
visibility:
public

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