Submission #34348905

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Source Code Expand

#include <iostream>
#include <cstdio>
#include <cstring>
#include <vector>
#include <algorithm>
#include <cmath>

using namespace std;

#define mp make_pair
#define pb push_back
#define ll long long

ll n, a, b;

void result(ll x) {
  cout << x;
  exit(0);
}

int main()
{
  cin >> n >> a >> b;

  if (n < a) result(0);
  n -= a - 1;

  if (a <= b) result(n);

  ll groups = n / a;
  ll rem = n % a;
  ll res = groups * b + min(b, rem);
  result(res);


  return 0;
}

Submission Info

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