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  1. #include <stdio.h>
  2. #include <string.h>
  3.  
  4. int isPalindrome(int n) {
  5. 	char s[100] = {0};
  6. 	int i = 0, j = 0;
  7. 	while (n > 0) {
  8. 		s[i++] = n % 10 + 48;
  9. 		n /= 10;
  10. 	}
  11. 	i = 0, j = strlen(s) - 1;
  12. 	while (i <= j) {
  13. 		if (s[i++] != s[j--])
  14. 			return 0;
  15. 	}
  16. 	return 1;
  17. }
  18.  
  19. int main(int argc, char *argv[])
  20. {
  21. 	for (int i = 0; i < 100; i++) {
  22. 		if (isPalindrome(i * i))
  23. 			printf("%d\n", i);
  24. 	}
  25. 	return 0;
  26. }
  27.  
Success #stdin #stdout 0s 9424KB
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https://ideone.com/p7XBDW
language:
C (gcc 8.3)
created:
6 years ago
visibility:
secret

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