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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. int main() {
  5. 	int t,l,r,k,n,rm;	cin >> t;
  6. 	while(t--){
  7. 		cin >> l >> r >> k;
  8. 		if(k == 1){
  9. 			cout << r-l+1 << endl;
  10. 			continue;
  11. 		}
  12.  
  13. 		n = (l+r)/k;
  14. 		int cnt = 0,m_cnt = 0; //m_cnt : multiple count, rm : highest multiple of l in [l,r]
  15. 		for(int i=l;i<=n;i++){
  16. 			rm = (r/i)*i;
  17. 			m_cnt = (rm-i)/i+1;
  18. 			if(m_cnt >= k)	cnt++;
  19. 			else	break;
  20. 		}
  21. 		cout << cnt << endl;
  22. 	}
  23. 	return 0;
  24. }
Success #stdin #stdout 2.6s 5292KB
comments (?)
stdin
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8
3 9 2
4 9 1
7 9 2
2 10 2
154 220 2
147 294 2
998 24435 3
1 1000000000 2
stdout
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2
6
0
4
0
1
7148
500000000
https://ideone.com/qqD6ok
language:
C++ (gcc 8.3)
created:
5 days ago
visibility:
public

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