Problem:
How Many Divisors?

Write a program which reads three integers a, b and c, and prints the number of divisors of c between a and b.

Input

Three integers a, b and c are given in a line separated by a single space.

Output

Print the number of divisors in a line.

Constraints

1 ≤ a, b, c ≤ 10000

a ≤ b

Sample Input 1

5 14 80

Sample Output 1

3

Solution in C++ (judge verdict: Time Limit Exceeded)

 #include <iostream>
using namespace std;
	int main(){
		int a,b,c,x,y,n,d;
		n = 0;
		d = 0;
		cin >> a >> b >> c;
		x = a ;
		a <= b ;
		1 <= a;b;c <= 100000000;
		while ( x  <= b  ){
			cin >> a >> b >> c ;
		for ( x = a ; x <= b - 1 ; x += 1 )
			y = c / x ;
		if ( 0 == c - ( x * y ) )
			n = n += 1 ;
		else 
			d = d += 1 ;
		}
		cout << n << endl;
	}