Submission #1076470

# Submission time Handle Problem Language Result Execution time Memory
1076470 2024-08-26T14:10:09 Z Pannda Gap (APIO16_gap) C++17
42.8842 / 100
41 ms 1992 KB
#include "gap.h"

#include <bits/stdc++.h>
using namespace std;

long long findGap(int type, int n) {
    constexpr long long C = 1e18;
    if (type == 1) {
        vector<long long> a(n);
        int idx_l = 0, idx_r = n - 1;
        long long l = 0, r = C;
        for (int t = 0; t < (n + 1) / 2; t++) {
            MinMax(l, r, &a[idx_l], &a[idx_r]);
            l = a[idx_l] + 1;
            r = a[idx_r] - 1;
            idx_l++;
            idx_r--;
        }
        long long ans = 0;
        for (int i = 0; i + 1 < n; i++) {
            ans = max(ans, a[i + 1] - a[i]);
        }
        return ans;
    } else {
        long long x;
        long long last;
        MinMax(0, C, &x, &last);
        long long ans = 1;

        while (last - x > ans) {
            // with x, find some d such that [x, x + d] is only x, and [x + d + 1, x + d + 1 + d] is none empty and is (mn, mx)
            // update ans with mn - x, and set new x to mx
            // jump x until [x + ans] is only x
            while (last - x > ans) {
                // assert( [x, x + ans] is only x)
                long long s = x + ans + 1;
                assert(s <= C);
                long long mn, mx;
                MinMax(s, s + ans, &mn, &mx);
                if (mn == -1) {
                    ans = ans + ans + 1;
                } else {
                    ans = mn - x;
                    x = mx;
                    break;
                }
            }
            while (last - x > ans) {
                long long mn, mx;
                MinMax(x, x + ans, &mn, &mx);
                if (mx == x) {
                    break;
                } else {
                    x = mx;
                }
            }
        }
        return ans;
    }
}
# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 1 ms 456 KB Output is correct
9 Correct 1 ms 344 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 1 ms 344 KB Output is correct
13 Correct 1 ms 344 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 1 ms 344 KB Output is correct
16 Correct 8 ms 716 KB Output is correct
17 Correct 7 ms 1108 KB Output is correct
18 Correct 8 ms 688 KB Output is correct
19 Correct 8 ms 856 KB Output is correct
20 Correct 8 ms 856 KB Output is correct
21 Correct 40 ms 1984 KB Output is correct
22 Correct 39 ms 1880 KB Output is correct
23 Correct 26 ms 1840 KB Output is correct
24 Correct 41 ms 1880 KB Output is correct
25 Correct 28 ms 1892 KB Output is correct
26 Correct 28 ms 1760 KB Output is correct
27 Correct 35 ms 1968 KB Output is correct
28 Correct 31 ms 1828 KB Output is correct
29 Correct 33 ms 1944 KB Output is correct
30 Correct 26 ms 1992 KB Output is correct
31 Correct 1 ms 344 KB Output is correct
32 Correct 0 ms 344 KB Output is correct
# Verdict Execution time Memory Grader output
1 Partially correct 0 ms 344 KB Partially correct
2 Partially correct 0 ms 344 KB Partially correct
3 Partially correct 1 ms 356 KB Partially correct
4 Partially correct 0 ms 344 KB Partially correct
5 Partially correct 0 ms 344 KB Partially correct
6 Partially correct 1 ms 344 KB Partially correct
7 Correct 0 ms 344 KB Output is correct
8 Partially correct 0 ms 344 KB Partially correct
9 Partially correct 1 ms 344 KB Partially correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 1 ms 344 KB Output is correct
13 Correct 1 ms 596 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Partially correct 1 ms 344 KB Partially correct
16 Correct 7 ms 520 KB Output is correct
17 Correct 5 ms 648 KB Output is correct
18 Correct 7 ms 600 KB Output is correct
19 Correct 7 ms 600 KB Output is correct
20 Correct 5 ms 600 KB Output is correct
21 Correct 27 ms 964 KB Output is correct
22 Correct 25 ms 1112 KB Output is correct
23 Correct 29 ms 1112 KB Output is correct
24 Correct 21 ms 1212 KB Output is correct
25 Partially correct 37 ms 1216 KB Partially correct
26 Correct 22 ms 1112 KB Output is correct
27 Correct 27 ms 1216 KB Output is correct
28 Correct 30 ms 1112 KB Output is correct
29 Correct 26 ms 1208 KB Output is correct
30 Correct 20 ms 1112 KB Output is correct
31 Partially correct 0 ms 344 KB Partially correct
32 Correct 1 ms 344 KB Output is correct