Submission #564256

# Submission time Handle Problem Language Result Execution time Memory
564256 2022-05-18T19:40:34 Z Ooops_sorry Gap (APIO16_gap) C++14
0 / 100
63 ms 1100 KB
#include<bits/stdc++.h>
#ifndef LOCAL
    #include "gap.h"
#endif

#define ll long long

using namespace std;

#ifdef LOCAL
    static void my_assert(int k){ if (!k) exit(1); }

    static int subtask_num, N;
    static long long A[100001];
    static long long call_count;
    void MinMax(long long s, long long t, long long *mn, long long *mx)
    {
        int lo = 1, hi = N, left = N+1, right = 0;
        my_assert(s <= t && mn != NULL && mx != NULL);
        while (lo <= hi){
            int mid = (lo+hi)>>1;
            if (A[mid] >= s) hi = mid - 1, left = mid;
            else lo = mid + 1;
        }
        lo = 1, hi = N;
        while (lo <= hi){
            int mid = (lo+hi)>>1;
            if (A[mid] <= t) lo = mid + 1, right = mid;
            else hi = mid - 1;
        }
        if (left > right) *mn = *mx = -1;
        else{
            *mn = A[left];
            *mx = A[right];
        }
        if (subtask_num == 1) call_count++;
        else if (subtask_num == 2) call_count += right-left+2;
    }
#endif // LOCAL

set<ll> st;
const ll INF = 1e18;

mt19937_64 rnd(51);

long long findGap(int t, int n) {
    ll a, b;
    MinMax(0, INF, &a, &b);
    ll len = max(1ll, (b - a - 1) / (n - 1)), now = a + 1, last = a, ans = 0;
    for (int i = 0; i < n; i++) {
        ll mn, mx;
        MinMax(now, now + len - 1, &mn, &mx);
        if (mn != -1) {
            if (last != -1) {
                ans = max(ans, mn - last);
            }
            last = mx;
        }
        now += len;
    }
    return ans;
}

#ifdef LOCAL
    int main()
    {
        FILE *in = stdin, *out = stdout;
        my_assert(2 == fscanf(in, "%d%d", &subtask_num, &N));
        my_assert(1 <= subtask_num && subtask_num <= 2);
        my_assert(2 <= N && N <= 100000);
        for (int i=1;i<=N;i++) my_assert(1 == fscanf(in, "%lld", A+i));
        for (int i=1;i<N;i++) my_assert(A[i] < A[i+1]);
        fprintf(out, "%lld\n", findGap(subtask_num, N));
        fprintf(out, "%lld\n", call_count);
    }

#endif
# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 208 KB Output isn't correct
2 Incorrect 0 ms 208 KB Output isn't correct
3 Incorrect 0 ms 208 KB Output isn't correct
4 Incorrect 0 ms 208 KB Output isn't correct
5 Incorrect 0 ms 208 KB Output isn't correct
6 Incorrect 0 ms 208 KB Output isn't correct
7 Incorrect 1 ms 292 KB Output isn't correct
8 Incorrect 1 ms 208 KB Output isn't correct
9 Incorrect 1 ms 208 KB Output isn't correct
10 Incorrect 0 ms 208 KB Output isn't correct
11 Incorrect 1 ms 208 KB Output isn't correct
12 Incorrect 1 ms 336 KB Output isn't correct
13 Incorrect 1 ms 208 KB Output isn't correct
14 Incorrect 1 ms 336 KB Output isn't correct
15 Incorrect 1 ms 336 KB Output isn't correct
16 Incorrect 13 ms 516 KB Output isn't correct
17 Incorrect 13 ms 452 KB Output isn't correct
18 Incorrect 16 ms 520 KB Output isn't correct
19 Incorrect 13 ms 516 KB Output isn't correct
20 Incorrect 7 ms 464 KB Output isn't correct
21 Incorrect 63 ms 1056 KB Output isn't correct
22 Incorrect 58 ms 1088 KB Output isn't correct
23 Incorrect 52 ms 1080 KB Output isn't correct
24 Incorrect 52 ms 1056 KB Output isn't correct
25 Incorrect 46 ms 1064 KB Output isn't correct
26 Incorrect 51 ms 1060 KB Output isn't correct
27 Incorrect 53 ms 1084 KB Output isn't correct
28 Incorrect 52 ms 1080 KB Output isn't correct
29 Incorrect 53 ms 1088 KB Output isn't correct
30 Incorrect 27 ms 1088 KB Output isn't correct
31 Incorrect 0 ms 208 KB Output isn't correct
32 Incorrect 0 ms 208 KB Output isn't correct
# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 0 ms 208 KB Output is correct
4 Correct 0 ms 208 KB Output is correct
5 Correct 0 ms 208 KB Output is correct
6 Correct 0 ms 208 KB Output is correct
7 Correct 0 ms 208 KB Output is correct
8 Correct 0 ms 208 KB Output is correct
9 Correct 0 ms 208 KB Output is correct
10 Correct 0 ms 208 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 1 ms 208 KB Output is correct
13 Correct 1 ms 336 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 208 KB Output is correct
16 Correct 14 ms 428 KB Output is correct
17 Correct 12 ms 464 KB Output is correct
18 Correct 12 ms 520 KB Output is correct
19 Correct 13 ms 520 KB Output is correct
20 Incorrect 6 ms 464 KB Output isn't correct
21 Correct 51 ms 1024 KB Output is correct
22 Correct 51 ms 1060 KB Output is correct
23 Correct 57 ms 1084 KB Output is correct
24 Correct 63 ms 1092 KB Output is correct
25 Correct 57 ms 1100 KB Output is correct
26 Correct 62 ms 1072 KB Output is correct
27 Correct 58 ms 956 KB Output is correct
28 Correct 52 ms 968 KB Output is correct
29 Correct 56 ms 1036 KB Output is correct
30 Incorrect 40 ms 996 KB Output isn't correct
31 Correct 0 ms 208 KB Output is correct
32 Correct 1 ms 208 KB Output is correct