Submission #1076451

# Submission time Handle Problem Language Result Execution time Memory
1076451 2024-08-26T14:01:59 Z Pannda Gap (APIO16_gap) C++17
42.7636 / 100
36 ms 2196 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 = 0;

        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;
                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 1 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 440 KB Output is correct
7 Correct 0 ms 344 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 0 ms 344 KB Output is correct
10 Correct 0 ms 344 KB Output is correct
11 Correct 1 ms 484 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 7 ms 660 KB Output is correct
17 Correct 7 ms 856 KB Output is correct
18 Correct 8 ms 660 KB Output is correct
19 Correct 8 ms 692 KB Output is correct
20 Correct 7 ms 660 KB Output is correct
21 Correct 26 ms 1964 KB Output is correct
22 Correct 36 ms 1880 KB Output is correct
23 Correct 28 ms 1880 KB Output is correct
24 Correct 32 ms 1920 KB Output is correct
25 Correct 24 ms 1940 KB Output is correct
26 Correct 28 ms 1880 KB Output is correct
27 Correct 32 ms 1928 KB Output is correct
28 Correct 25 ms 1888 KB Output is correct
29 Correct 30 ms 1880 KB Output is correct
30 Correct 27 ms 2196 KB Output is correct
31 Correct 1 ms 344 KB Output is correct
32 Correct 1 ms 344 KB Output is correct
# Verdict Execution time Memory Grader output
1 Partially correct 1 ms 344 KB Partially correct
2 Partially correct 0 ms 344 KB Partially correct
3 Partially correct 0 ms 344 KB Partially correct
4 Partially correct 0 ms 344 KB Partially correct
5 Partially correct 0 ms 344 KB Partially correct
6 Partially correct 0 ms 344 KB Partially correct
7 Partially correct 1 ms 596 KB Partially correct
8 Partially correct 0 ms 344 KB Partially correct
9 Partially correct 0 ms 344 KB Partially correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 0 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 Partially correct 1 ms 344 KB Partially correct
16 Correct 5 ms 600 KB Output is correct
17 Correct 5 ms 600 KB Output is correct
18 Correct 5 ms 600 KB Output is correct
19 Correct 7 ms 600 KB Output is correct
20 Correct 4 ms 600 KB Output is correct
21 Correct 17 ms 1196 KB Output is correct
22 Correct 20 ms 1112 KB Output is correct
23 Correct 18 ms 1112 KB Output is correct
24 Correct 18 ms 1112 KB Output is correct
25 Partially correct 34 ms 1112 KB Partially correct
26 Correct 16 ms 1236 KB Output is correct
27 Correct 18 ms 1112 KB Output is correct
28 Correct 28 ms 1104 KB Output is correct
29 Correct 17 ms 1112 KB Output is correct
30 Correct 16 ms 1112 KB Output is correct
31 Partially correct 1 ms 344 KB Partially correct
32 Correct 0 ms 344 KB Output is correct