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Submission #486004

# Submission time Handle Problem Language Result Execution time Memory
486004 2021-11-10T07:02:52 Z Jomnoi Rice Hub (IOI11_ricehub) C++17
68 / 100
 1000 ms 1928 KB 
#include <bits/stdc++.h>
#include <ricehub.h>
#define DEBUG 0
using namespace std;

int cost(int R, int X[], int pos, long long B) {
    vector <int> truckload;
    for(int i = 0; i < R; i++) {
        truckload.push_back(abs(X[i] - pos));
    }
    sort(truckload.begin(), truckload.end());
    long long sum = 0;
    for(int i = 0; i < R; i++) {
        if(sum + truckload[i] > B) {
            return i;
        }
        sum += truckload[i];
    }
    return R;
}

int besthub(int R, int L, int X[], long long B) {
    int l = 1, r = L, ans = 0;
    while(l <= r) {
        int mid = (l + r) / 2;
        int cost1 = cost(R, X, mid, B);
        int l2 = l + 1, r2 = r, pos2 = r;
        while(l2 <= r2) {
            int mid2 = (l2 + r2) / 2;
            int cost2 = cost(R, X, mid2, B);
            if(cost1 == cost2) {
                l2 = mid2 + 1;
            }
            else {
                r2 = mid2 - 1;
                pos2 = min(pos2, mid2);
            }
        }
        int cost2 = cost(R, X, pos2, B);
        if(cost1 > cost2) {
            r = mid - 1;
            ans = max(ans, cost1);
        }
        else {
            l = mid + 1;
            ans = max(ans, cost2);
        }
    }
    return ans;
}

// int main() {
//     ios_base::sync_with_stdio(0);
//     cin.tie(0);
//     int r, l, b;
//     cin >> r >> l >> b;
//     int x[l];
//     for(int i = 0; i < r; i++) {
//         cin >> x[i];
//     }
//     cout << besthub(r, l, x, b);
//     return 0;
// }

/*
5 20 6
1 2 10 12 14
*/

Subtask #1
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 0 ms 204 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 0 ms 204 KB Output is correct
13 Correct 0 ms 204 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 0 ms 204 KB Output is correct
16 Correct 0 ms 204 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 0 ms 204 KB Output is correct
19 Correct 0 ms 204 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 1 ms 204 KB Output is correct
22 Correct 1 ms 204 KB Output is correct
23 Correct 3 ms 204 KB Output is correct
24 Correct 3 ms 204 KB Output is correct
25 Correct 3 ms 204 KB Output is correct
26 Correct 2 ms 204 KB Output is correct
27 Correct 1 ms 204 KB Output is correct
28 Correct 1 ms 204 KB Output is correct

Subtask #3
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 3 ms 204 KB Output is correct
4 Correct 7 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 2 ms 332 KB Output is correct
11 Correct 3 ms 204 KB Output is correct
12 Correct 3 ms 204 KB Output is correct
13 Correct 2 ms 204 KB Output is correct
14 Correct 4 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 1 ms 204 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 3 ms 204 KB Output is correct
19 Correct 3 ms 316 KB Output is correct
20 Correct 8 ms 204 KB Output is correct
21 Correct 5 ms 376 KB Output is correct
22 Correct 6 ms 332 KB Output is correct
23 Correct 9 ms 332 KB Output is correct
24 Correct 21 ms 332 KB Output is correct
25 Correct 79 ms 332 KB Output is correct
26 Correct 67 ms 356 KB Output is correct
27 Correct 23 ms 332 KB Output is correct
28 Correct 22 ms 372 KB Output is correct

Subtask #4
0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 233 ms 588 KB Output is correct
2 Correct 283 ms 764 KB Output is correct
3 Correct 788 ms 1928 KB Output is correct
4 Execution timed out 1084 ms 1812 KB Time limit exceeded
5 Halted 0 ms 0 KB -