oj.uz

Submission #789025

# Submission time Handle Problem Language Result Execution time Memory
789025 2023-07-20T21:36:00 Z stefanneagu Self Study (JOI22_ho_t2) C++17
0 / 100
 345 ms 26236 KB 
#include <iostream>
#include <set>
#include <algorithm>
#define int long long
 
using namespace std;
 
const int nmax = 3e5 + 7;
 
int v[nmax], b[nmax], cnt[nmax], n, k;
 
struct pairing {
    int first, second;
    const bool operator < (pairing a) const {
        if(first != a.first) {
            return first < a.first;
        } else {
            return second > a.second;
        }
    }
};
 
bool check(int x) {
    int sum = 0;
    for(int i = 1; i <= n; i ++) {
        int curr = x / v[i];
        if(v[i] * curr < x) {
            curr ++;
        }
        sum += curr;
    }
    if(sum <= n * k) {
        return 1;
    }
    return 0;
}
 
int32_t main() {
    int test = 0;
    cin >> n >> k;
    for(int i = 1; i <= n; i ++) {
        cin >> v[i];
    } 
    for(int i = 1; i <= n; i ++){
        cin >> b[i];
        if(b[i] != v[i]) {
            test = 1;
        }
    }
    if(!test) {
        sort(v + 1, v + n + 1);
        int l = 0, r = 1e18;
        while(l < r) {
            int mid = (l + r) / 2;
            if(check(mid) == 1) {
                l = mid + 1;
            } else {
                r = mid;
            }
        }
        while(check(r) == 0 && r > 0) {
            r --;
        }
        while(check(r + 1) == 1) {
            r ++;
        }
        cout << r;
        return 0;
    } 
    set<pairing> pq;
    for(int i = 1; i <= n; i ++) {
        pq.insert({max(v[i], b[i]), i});
        cnt[i] = 1;
    }
    for(int i = 2; i <= k; i ++) {
        for(int j = 1; j <= n; j ++) {
            pairing curr = *(pq.begin());
            int sum = curr.first, ind = curr.second;
            pq.erase({sum, ind});
            if(cnt[ind] < k) {
                sum += max(v[ind], b[ind]);
                cnt[ind] ++;
            } else {
                sum +=  b[ind];
            }
            pq.insert({sum, ind});
        }
    } 
    int minn = 1e18;
    for(auto it : pq) {
        // cout << it.first << " " << it.second << endl;
        minn = min(minn, it.first);
    }
    cout << minn;
    return 0;
}

Subtask #1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 4 ms 596 KB Output is correct
11 Correct 345 ms 26236 KB Output is correct
12 Correct 301 ms 26116 KB Output is correct
13 Correct 196 ms 26120 KB Output is correct
14 Correct 179 ms 26064 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Incorrect 318 ms 4940 KB Output isn't correct
17 Halted 0 ms 0 KB -

Subtask #2
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Incorrect 318 ms 4940 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #3
0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 4 ms 596 KB Output is correct
11 Correct 345 ms 26236 KB Output is correct
12 Correct 301 ms 26116 KB Output is correct
13 Correct 196 ms 26120 KB Output is correct
14 Correct 179 ms 26064 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Incorrect 318 ms 4940 KB Output isn't correct
17 Halted 0 ms 0 KB -

Subtask #4
0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Incorrect 318 ms 4940 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #5
0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 4 ms 596 KB Output is correct
11 Correct 345 ms 26236 KB Output is correct
12 Correct 301 ms 26116 KB Output is correct
13 Correct 196 ms 26120 KB Output is correct
14 Correct 179 ms 26064 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Incorrect 318 ms 4940 KB Output isn't correct
17 Halted 0 ms 0 KB -