1004. Filled rectangle (Standard IO), 1004io

1004. Filled rectangle (Standard IO), 1004io

The title description shows that the rectangle is n × m, and the rectangle is filled with a × a square. Enter three positive integers n, m, a (n, m, a ≤ 10 ^ 9). How many squares can be filled in? (A square can meet the boundary of a rectangle, but cannot exceed the boundary of a rectangle) Enter three positive integers n, m, and a separated by a space in a row. The number of squares that can be filled in the output. Sample Input

3 4 1

Sample output

12

Data range: 1 <= n, m, a ≤ 10 ^ 9

1 # include <iostream> 2 # include <cstdio> 3 # include <cmath> 4 using namespace std; 5 char B [10001]; 6 int ans; 7 long int; 8 long int n, m; 9 int now = 1; 10 int main () 11 {12 cin >>n> m>; 13 cout <(n/a) * (m/a); 14 return 0; 15}