I have tried 20-30 times , using floor()
and type casting but I can't seem to get AC. What is the problem here? Thanks for the help.
Problem : https://atcoder.jp/contests/abc169/tasks/abc169_c
// Author : Epsilon573
// If it works, don't touch it.
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef long double ld;
int main()
{
ios_base :: sync_with_stdio(false);
cin.tie(NULL);
cout.tie(NULL);
ll a; ld b;
cin >> a >> b;
ll c = b*100;
cout << a*c/100LL;
return 0;
}