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Submission #947259

# Submission time Handle Problem Language Result Execution time Memory
947259 2024-03-15T19:05:38 Z NValchanov Gap (APIO16_gap) C++17
100 / 100
 45 ms 4188 KB 
#include <bits/stdc++.h>
#include "gap.h"

#define endl '\n'

using namespace std;

typedef long long ll;

const ll INF = 4e18;

ll t,n;

ll solve_t1()
{
    vector <ll> a;
    ll left = 1;
    ll right = INF;
    ll minel;
    ll maxel;
    ll cnt = 0;

    while(left <= right && a.size() < n)
    {
        MinMax(left, right, &minel, &maxel);

        a.push_back(minel);
        a.push_back(maxel);

        left = minel + 1;
        right = maxel - 1;
    }
    sort(a.begin(), a.end());
    ll ans = 0;
    for(int i = 1; i < a.size(); i++)
    {
        ans = max(ans, a[i] - a[i - 1]);
    }
    return ans;
}

ll solve_t2()
{
    ll minel;
    ll maxel;

    MinMax(0, INF, &minel, &maxel);

    ll cnt = (maxel - minel + 1) / n;

    ll ans = cnt;
    ll last = minel;

    ll cur = minel + 1;

    while(cur <= maxel)
    {
        ll cur_minel;
        ll cur_maxel;
        MinMax(cur, cur + cnt, &cur_minel, &cur_maxel);

        if(cur_minel != -1)
        {
            ans = max(ans, cur_minel - last);
            last = cur_maxel;
        }

        cur += (cnt + 1);
    }

    return ans;
}

ll findGap(int T, int N)
{
    t = T;
    n = N;
    if(t == 1)
        return solve_t1();
    else if(t == 2)
        return solve_t2();
    else
        assert(false);
}

Compilation message

gap.cpp: In function 'll solve_t1()':
gap.cpp:23:37: warning: comparison of integer expressions of different signedness: 'std::vector<long long int>::size_type' {aka 'long unsigned int'} and 'll' {aka 'long long int'} [-Wsign-compare]
   23 |     while(left <= right && a.size() < n)
      |                            ~~~~~~~~~^~~
gap.cpp:35:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   35 |     for(int i = 1; i < a.size(); i++)
      |                    ~~^~~~~~~~~~
gap.cpp:21:8: warning: unused variable 'cnt' [-Wunused-variable]
   21 |     ll cnt = 0;
      |        ^~~

Subtask #1
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 2392 KB Output is correct
3 Correct 1 ms 2392 KB Output is correct
4 Correct 0 ms 2392 KB Output is correct
5 Correct 1 ms 2392 KB Output is correct
6 Correct 1 ms 2392 KB Output is correct
7 Correct 1 ms 2392 KB Output is correct
8 Correct 1 ms 2392 KB Output is correct
9 Correct 1 ms 2392 KB Output is correct
10 Correct 1 ms 2392 KB Output is correct
11 Correct 1 ms 2392 KB Output is correct
12 Correct 1 ms 2392 KB Output is correct
13 Correct 1 ms 2392 KB Output is correct
14 Correct 1 ms 2392 KB Output is correct
15 Correct 1 ms 2392 KB Output is correct
16 Correct 8 ms 3008 KB Output is correct
17 Correct 8 ms 2804 KB Output is correct
18 Correct 8 ms 2844 KB Output is correct
19 Correct 9 ms 2836 KB Output is correct
20 Correct 7 ms 2824 KB Output is correct
21 Correct 37 ms 3996 KB Output is correct
22 Correct 31 ms 3988 KB Output is correct
23 Correct 31 ms 4000 KB Output is correct
24 Correct 32 ms 3932 KB Output is correct
25 Correct 28 ms 3992 KB Output is correct
26 Correct 32 ms 3972 KB Output is correct
27 Correct 31 ms 4188 KB Output is correct
28 Correct 36 ms 3988 KB Output is correct
29 Correct 31 ms 3996 KB Output is correct
30 Correct 26 ms 3988 KB Output is correct
31 Correct 1 ms 2392 KB Output is correct
32 Correct 0 ms 2392 KB Output is correct

Subtask #2
70.0 / 70.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 1 ms 2392 KB Output is correct
3 Correct 0 ms 2392 KB Output is correct
4 Correct 0 ms 2392 KB Output is correct
5 Correct 0 ms 2392 KB Output is correct
6 Correct 0 ms 2392 KB Output is correct
7 Correct 0 ms 2392 KB Output is correct
8 Correct 1 ms 2392 KB Output is correct
9 Correct 1 ms 2392 KB Output is correct
10 Correct 1 ms 2392 KB Output is correct
11 Correct 1 ms 2392 KB Output is correct
12 Correct 1 ms 2392 KB Output is correct
13 Correct 1 ms 2392 KB Output is correct
14 Correct 1 ms 2392 KB Output is correct
15 Correct 1 ms 2392 KB Output is correct
16 Correct 10 ms 2560 KB Output is correct
17 Correct 12 ms 2828 KB Output is correct
18 Correct 10 ms 2536 KB Output is correct
19 Correct 10 ms 2752 KB Output is correct
20 Correct 6 ms 2592 KB Output is correct
21 Correct 45 ms 2852 KB Output is correct
22 Correct 39 ms 2852 KB Output is correct
23 Correct 38 ms 2856 KB Output is correct
24 Correct 40 ms 2864 KB Output is correct
25 Correct 37 ms 2852 KB Output is correct
26 Correct 39 ms 2852 KB Output is correct
27 Correct 38 ms 2856 KB Output is correct
28 Correct 39 ms 2860 KB Output is correct
29 Correct 40 ms 2856 KB Output is correct
30 Correct 21 ms 2852 KB Output is correct
31 Correct 1 ms 2552 KB Output is correct
32 Correct 1 ms 2392 KB Output is correct