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  1. #include <stdio.h>
  2. int str_count(char *str, int c);
  3.  
  4. int main(void) {
  5. 	char str[100];
  6. 	char c;
  7. 	int count=0;
  8. 	printf("文字列の入力:"); scanf("%s",str);
  9. 	printf("検索文字の入力:"); scanf(" %c",&c);
  10. 	count=str_count(str,c);
  11. 	printf("検索文字の数:%d\n",count);
  12. 	return 0;
  13. }
  14.  
  15. int str_count(char *str, int c){
  16. 	int count=0;
  17. 	while(*str){
  18. 		if(*str==c){
  19. 			count++;
  20. 		}str++;
  21. 	}
  22. 	return count;
  23. }
  24.  
Success #stdin #stdout 0s 5516KB
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文字列の入力:検索文字の入力:検索文字の数:4
https://ideone.com/S5dUJ2
language:
C (gcc 8.3)
created:
1 year ago
visibility:
public

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