Submission #996743

#	Time	Username	Problem	Language	Result	Execution time	Memory
996743		faqinyeager	Self Study (JOI22_ho_t2)	C++17	0 / 100	1 ms	348 KiB

Main

#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using ld = long double;

int n, m;
vector<ll> a, b;
vector<ld> r;

ll gcd(ll a, ll b){
    if(a < b) swap(a, b);
    if(b == 0) return a;
    return gcd(b, a % b);
}

ll lcm(ll a, ll b){ return a / gcd(a, b) * b; }

int main(){
    cin >> n >> m;
    
    a.resize(n);
    b.resize(n);
    r.resize(n);
    
    for(int i = 0; i < n; i++) cin >> a[i];
    for(int i = 0; i < n; i++) cin >> b[i];
    
    ll tmp = 1;
    
    for(int i = 0; i < n; i++) tmp = lcm(tmp, a[i]);
    
    ll tot = n * m, c = 0;
    
    for(int i = 0; i < n; i++){
        r[i] = ld(tmp) / ld(a[i]);
        c += r[i];
    }
    
    ld per = ld(tot) / ld(c), ans = 1e10;
    ll count = 0;
    
    for(int i = 0; i < n; i++){
        r[i] *= per;
        ans = min(ans, r[i] * a[i]);
        count += r[i] * a[i];
    }
    
    cout << ((count < n) ? int(ans) : int(ans) + *min_element(a.begin(), a.end()) * (count / n));
}

• Subtask 1: 0 / 10
• Subtask 2: 0 / 25
• Subtask 3: 0 / 27
• Subtask 4: 0 / 29
• Subtask 5: 0 / 9