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#include <iostream> using namespace std; int main(){ double n = 0,m = 0,a = 0; while (cin >> n >> m >> a) { long long res = (long long)ceil(n/a) * (long long)ceil(m/a); cout << res << endl; } return 0; } |
作为CF的Hello World题，居然会拿爆int这种事坑人。。。
