Entrepreneur

// ~/.vim/cpp_template.cpp
#include <iostream>
#include <vector>
#include <algorithm>

using namespace std;

bool CPIT(long long time, const vector<int>& machines, long long target) {
    long long totalCars = 0;
    for (int machineTime : machines) {
        totalCars += time / machineTime;
        if (totalCars >= target) {
            return true;
        }
    }
    return totalCars >= target;
}

long long mTTPC(int n, long long t, const vector<int>& machines) {
    long long low = 1;
    long long high = *min_element(machines.begin(), machines.end()) * t;
    long long result = high;

    while (low <= high) {
        long long mid = low + (high - low) / 2;
        if (CPIT(mid, machines, t)) {
            result = mid;
            high = mid - 1;
        } else {
            low = mid + 1;
        }
    }

    return result;
}

int main() {
    int n;
    long long t;
    cin >> n >> t;

    vector<int> machines(n);
    for (int i = 0; i < n; i++) {
        cin >> machines[i];
    }

    cout << mTTPC(n, t, machines) << endl;

    return 0;
}

Test 1

Verdict: ACCEPTED

Test 2

Verdict: ACCEPTED

Test 3

Verdict: ACCEPTED

Test 4

Verdict: ACCEPTED

Test 5

Verdict: ACCEPTED

Test 6

Verdict: ACCEPTED

Test 7

Verdict: ACCEPTED

Test 8

Verdict: ACCEPTED

Test 9

Verdict: ACCEPTED

Test 10

Verdict: ACCEPTED

Test 11

Verdict: ACCEPTED

Test 12

Verdict: ACCEPTED

Test 13

Verdict: ACCEPTED

Test 14

Verdict: ACCEPTED

Test 15

Verdict: ACCEPTED