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daitv

doi xung p2

Aug 29th, 2016
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  1. #include<stdio.h>
  2. #include<math.h>
  3.  
  4. //so doi xung
  5. //bai ngay em cho so nguyen cunng duoc khong can duong :))
  6. int main() {
  7. int n, i, sum = 0, count= 0, m;
  8. printf("nhap vao so can tra:");
  9. scanf("%d", &n);
  10. m = n;
  11. do {
  12. count++;
  13. i = n % 10;
  14. sum = sum + i * 10 * count;
  15. n = n / 10;
  16. }
  17. while(n != 0);
  18.  
  19. if( m < 10 && m > -10) {
  20. printf("\nso do khong la so doi xung");
  21. }
  22. else if(m == sum) {
  23. printf("\nso do la so doi xung");
  24. }
  25. else
  26. printf("\n so do khong la so doi xung");
  27. return 0;
  28. }
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