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Submission #1015222

# Submission time Handle Problem Language Result Execution time Memory
1015222 2024-07-06T07:39:31 Z vjudge1 Gap (APIO16_gap) C++17
64.6316 / 100
 49 ms 7072 KB 
#include <bits/stdc++.h>
// #include "grader.cpp"
#include "gap.h"

using namespace std;

typedef long long ll;
ll n;
set<ll> st;
void recur(ll l, ll r){
    if (r < l or st.size() == n) return ;
    if (r - l <= 1){
        MinMax(l, r, &l, &r);
        if (l != -1){
            st.insert(l);
            st.insert(r);
        }
        return ;
    }

    ll mid = (l + r) / 2;
    
    ll mn, mx;
    MinMax(l, mid, &mn, &mx);

    if (mn != -1){
        st.insert(mn);
        st.insert(mx);
        recur(mn + 1, mx - 1);
    }

    MinMax(mid + 1, r, &mn, &mx);
    if (mn != -1){
        st.insert(mn);
        st.insert(mx);
        recur(mn + 1, mx - 1);
    }
}

ll findGap(int T, int N){
    n = N;
    ll res;
    if (T == 1 or N <= 8){
        ll mn = 0, mx = 1e18;
        while (N > 0){
            N -= 2;

            MinMax(mn, mx, &mn, &mx);

            st.insert(mn);
            st.insert(mx);
            
            mn++;
            mx--;
        }

        vector<ll> vec;
        for (ll x : st)
            vec.push_back(x);

        ll res = 0;
        for (ll i = 1; i < vec.size(); i ++)
            res = max(res, vec[i] - vec[i - 1]);
        return res;
    }
    else{
        ll l = 0, r = 1e18;
        ll mn, mx;
        MinMax(l, r, &mn, &mx);

        ll first = mn, last = mx;

        ll ans = 1;
        ll actual = 1;
        l = mn + 1;

        while (l <= last){
            r = l + ans;
            MinMax(l, r, &mn, &mx);

            if (mn == -1)
                ans *= 2;
            else{
                actual = max(actual, mn - (l - 1));
                ans = actual;
                l = mx + 1;
            }
        }

        return actual;
    }
}

Compilation message

gap.cpp: In function 'void recur(ll, ll)':
gap.cpp:11:28: warning: comparison of integer expressions of different signedness: 'std::set<long long int>::size_type' {aka 'long unsigned int'} and 'll' {aka 'long long int'} [-Wsign-compare]
   11 |     if (r < l or st.size() == n) return ;
      |                  ~~~~~~~~~~^~~~
gap.cpp: In function 'll findGap(int, int)':
gap.cpp:62:26: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   62 |         for (ll i = 1; i < vec.size(); i ++)
      |                        ~~^~~~~~~~~~~~
gap.cpp:71:12: warning: unused variable 'first' [-Wunused-variable]
   71 |         ll first = mn, last = mx;
      |            ^~~~~
gap.cpp:42:8: warning: unused variable 'res' [-Wunused-variable]
   42 |     ll res;
      |        ^~~

Subtask #1
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 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 0 ms 344 KB Output is correct
6 Correct 0 ms 344 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 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 13 ms 2208 KB Output is correct
17 Correct 10 ms 2136 KB Output is correct
18 Correct 11 ms 2136 KB Output is correct
19 Correct 10 ms 2152 KB Output is correct
20 Correct 8 ms 2136 KB Output is correct
21 Correct 41 ms 6952 KB Output is correct
22 Correct 47 ms 6912 KB Output is correct
23 Correct 49 ms 6832 KB Output is correct
24 Correct 43 ms 7072 KB Output is correct
25 Correct 37 ms 6860 KB Output is correct
26 Correct 40 ms 6836 KB Output is correct
27 Correct 42 ms 6916 KB Output is correct
28 Correct 40 ms 7068 KB Output is correct
29 Correct 44 ms 6860 KB Output is correct
30 Correct 36 ms 6852 KB Output is correct
31 Correct 0 ms 344 KB Output is correct
32 Correct 0 ms 344 KB Output is correct

Subtask #2
34.6316307611 / 70.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is 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 Correct 0 ms 344 KB Output is correct
7 Correct 0 ms 344 KB Output is correct
8 Correct 0 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 0 ms 344 KB Output is correct
12 Correct 1 ms 344 KB Output is correct
13 Correct 0 ms 344 KB Output is correct
14 Correct 0 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 6 ms 496 KB Output is correct
18 Correct 4 ms 600 KB Output is correct
19 Correct 5 ms 648 KB Output is correct
20 Correct 3 ms 600 KB Output is correct
21 Correct 16 ms 1200 KB Output is correct
22 Correct 17 ms 1112 KB Output is correct
23 Correct 17 ms 1112 KB Output is correct
24 Correct 16 ms 1112 KB Output is correct
25 Partially correct 32 ms 1112 KB Partially correct
26 Correct 21 ms 1112 KB Output is correct
27 Correct 16 ms 1236 KB Output is correct
28 Correct 21 ms 1112 KB Output is correct
29 Correct 22 ms 1216 KB Output is correct
30 Correct 12 ms 1112 KB Output is correct
31 Partially correct 0 ms 344 KB Partially correct
32 Correct 0 ms 344 KB Output is correct