Created
December 11, 2017 13:08
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#include <bits/stdc++.h> | |
using namespace std; | |
//#define int long long | |
#define FOR(i, j, k) for(int i = j; i < k; ++i) | |
#define rep(i, j) FOR(i, 0, j) | |
#define INF 1e9 | |
#define LINF 1e18 | |
#define fi first | |
#define se second | |
typedef unsigned long long ull; | |
typedef pair<int, int> P; | |
typedef pair<int, P> Pi; | |
typedef pair<P, P> PP; | |
const int MOD = 1e9 + 7; | |
const int dy[] = { 0, 0, 1, -1 }; | |
const int dx[] = { 1, -1, 0, 0 }; | |
template <class T> void chmin(T& a, const T& b) { a = min(a, b); } | |
template <class T> void chmax(T& a, const T& b) { a = max(a, b); } | |
signed main() { | |
cin.tie(0); | |
ios::sync_with_stdio(false); | |
int n, a, b, c, d; | |
cin >> n >> a >> b >> c >> d; | |
int x = n / a * b + ((n % a == 0) ? 0 : b); | |
int y = n / c * d + ((n % c == 0) ? 0 : d); | |
cout << min(x, y) << endl; | |
return 0; | |
} |
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