Entrepreneur

input/code.cpp: In function 'bool possible(long long int, std::vector<long long int>&, long long int)':
input/code.cpp:8:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    8 |     for (int i = 0; i < k.size(); i++) {
      |                     ~~^~~~~~~~~~

#include <bits/stdc++.h>

using namespace std;
#define ll long long

bool possible(long long t, vector<ll>& k, long long goal) {
    ll s = 0;
    for (int i = 0; i < k.size(); i++) {
        s += t / k[i];
    }
    return s >= goal;
}

int main() {

    ll n, t;
    cin >> n >> t;

    vector<ll> k(n);
    for (auto &v : k) cin >> v;

    ll lo = 0;
    ll hi = 1'000'000'000'000'000;
    ll ans = -1;

    while (lo <= hi) {
        ll mid = lo + (hi - lo) / 2;
        if (possible(mid, k, t)) {
            hi=mid-1;
            ans = mid;
        } else {
            lo=mid+1;
        }
    }

    cout << ans << endl;

}

Test 1

Verdict: ACCEPTED

Test 2

Verdict: ACCEPTED

Test 3

Verdict: ACCEPTED

Test 4

Verdict: ACCEPTED

Test 5

Verdict: WRONG ANSWER

Test 6

Verdict: ACCEPTED

Test 7

Verdict: ACCEPTED

Test 8

Verdict: WRONG ANSWER

Test 9

Verdict: ACCEPTED

Test 10

Verdict: ACCEPTED

Test 11

Verdict: ACCEPTED

Test 12

Verdict: ACCEPTED

Test 13

Verdict: WRONG ANSWER

Test 14

Verdict: ACCEPTED