Submission #564263

# Submission time Handle Problem Language Result Execution time Memory
564263 2022-05-18T19:43:40 Z Ooops_sorry Gap (APIO16_gap) C++14
0 / 100
68 ms 1184 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) + 1), now = a, last = -1, ans = 0;
    for (int i = 0; i < n - 1; 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 1 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 208 KB Output isn't correct
8 Incorrect 1 ms 208 KB Output isn't correct
9 Incorrect 0 ms 208 KB Output isn't correct
10 Incorrect 1 ms 208 KB Output isn't correct
11 Incorrect 1 ms 336 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 208 KB Output isn't correct
16 Incorrect 13 ms 476 KB Output isn't correct
17 Incorrect 13 ms 464 KB Output isn't correct
18 Incorrect 13 ms 464 KB Output isn't correct
19 Incorrect 12 ms 464 KB Output isn't correct
20 Incorrect 7 ms 464 KB Output isn't correct
21 Incorrect 52 ms 1160 KB Output isn't correct
22 Incorrect 62 ms 1184 KB Output isn't correct
23 Incorrect 60 ms 1032 KB Output isn't correct
24 Incorrect 53 ms 1084 KB Output isn't correct
25 Incorrect 55 ms 1084 KB Output isn't correct
26 Incorrect 68 ms 968 KB Output isn't correct
27 Incorrect 56 ms 1064 KB Output isn't correct
28 Incorrect 52 ms 1080 KB Output isn't correct
29 Incorrect 55 ms 1084 KB Output isn't correct
30 Incorrect 34 ms 1088 KB Output isn't correct
31 Incorrect 0 ms 208 KB Output isn't correct
32 Incorrect 1 ms 208 KB Output isn't correct
# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 208 KB Output isn't 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 1 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 2 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 432 KB Output is correct
17 Correct 12 ms 508 KB Output is correct
18 Correct 13 ms 464 KB Output is correct
19 Correct 14 ms 464 KB Output is correct
20 Correct 7 ms 464 KB Output is correct
21 Correct 67 ms 1084 KB Output is correct
22 Correct 62 ms 1056 KB Output is correct
23 Correct 60 ms 984 KB Output is correct
24 Correct 54 ms 1088 KB Output is correct
25 Correct 50 ms 1072 KB Output is correct
26 Correct 55 ms 1064 KB Output is correct
27 Correct 57 ms 1072 KB Output is correct
28 Correct 56 ms 1080 KB Output is correct
29 Correct 62 ms 1100 KB Output is correct
30 Correct 28 ms 976 KB Output is correct
31 Incorrect 0 ms 208 KB Output isn't correct
32 Correct 0 ms 208 KB Output is correct