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namereq

caという文字の出現回数

Jun 21st, 2018
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  1. #include <stdio.h>
  2. #include <string.h>
  3.  
  4. int main(void)
  5. {
  6.     char* str = "Hello, cacaworldca\n";
  7.     char* str2 = str;
  8.     int i, count = 0;
  9.     for(i=0;i< strlen(str) -1;i++, str2++){
  10.         if(strncmp(str2, "ca", 2) == 0){
  11.             count++;
  12.         }
  13.     }
  14.    
  15.     printf("出現回数:%d\n",count);
  16.    
  17.     return 0;
  18. }
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