oj.uz

Submission #845934

# Submission time Handle Problem Language Result Execution time Memory
845934 2023-09-06T20:02:17 Z samekkk Table Tennis (info1cup20_tabletennis) C++14
100 / 100
 188 ms 3288 KB 
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
#define rep(a,b) for (int a = 0; a < (b); ++a)
#define pb push_back
#define all(t) t.begin(), t.end()

const int max_N = 160005;
int n = 0, k = 0;
int A[max_N];
vector<int> V;
vector<int> wyn;

inline bool czy_pasuje(int val1, int val2)
{
    if (val1 == val2) return false;
    wyn = vector<int>();
    wyn.pb(val1), wyn.pb(val2);
    if (n == 2) return true;
    int sum = val1 + val2, lewy_wsk = 0, prawy_wsk = n+k-1, ile_brak = 0;
    while(lewy_wsk < prawy_wsk)
    {
        if(A[lewy_wsk] == val1) ++lewy_wsk;
        if(A[prawy_wsk] == val2) --prawy_wsk;
        if (A[lewy_wsk] + A[prawy_wsk] == sum)
        {
            wyn.pb(A[lewy_wsk]), wyn.pb(A[prawy_wsk]);
            if (n == wyn.size()) return true;
            ++lewy_wsk, --prawy_wsk;
        }
        else if (A[lewy_wsk] + A[prawy_wsk] > sum)
        {
            --prawy_wsk, ++ile_brak;
        }
        else
        {
            ++lewy_wsk, ++ile_brak;
        }
        if (ile_brak > k) return false;
    }
    return false;
}

int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);

    cin >> n >> k;
    rep(i,n+k) cin >> A[i];
    rep(i,k+1) V.pb(A[i]);
    for (int i = n-1; i < n+k; ++i) V.pb(A[i]);
    rep(i,V.size())
    {
        for (int j = i+1; j < V.size(); ++j)
        {
            if (czy_pasuje(V[i],V[j]) == true)
            {
                sort(all(wyn));
                for (auto v : wyn) cout << v << ' ';
                cout << '\n';
                return 0;
            }
        }
    }
    return 0;
}

Compilation message

tabletennis.cpp: In function 'bool czy_pasuje(int, int)':
tabletennis.cpp:28:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   28 |             if (n == wyn.size()) return true;
      |                 ~~^~~~~~~~~~~~~
tabletennis.cpp: In function 'int main()':
tabletennis.cpp:4:36: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    4 | #define rep(a,b) for (int a = 0; a < (b); ++a)
      |                                    ^
tabletennis.cpp:54:5: note: in expansion of macro 'rep'
   54 |     rep(i,V.size())
      |     ^~~
tabletennis.cpp:56:29: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   56 |         for (int j = i+1; j < V.size(); ++j)
      |                           ~~^~~~~~~~~~

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 344 KB Output is correct

Subtask #2
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 776 KB Output is correct
2 Correct 24 ms 3288 KB Output is correct
3 Correct 28 ms 3028 KB Output is correct
4 Correct 24 ms 3020 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 24 ms 3032 KB Output is correct
2 Correct 24 ms 3020 KB Output is correct
3 Correct 24 ms 3044 KB Output is correct
4 Correct 24 ms 3020 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 4 ms 344 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 2 ms 344 KB Output is correct
5 Correct 1 ms 344 KB Output is correct

Subtask #5
9.0 / 9.0

# 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

Subtask #6
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 1 ms 344 KB Output is correct

Subtask #7
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 24 ms 3140 KB Output is correct
3 Correct 24 ms 3024 KB Output is correct
4 Correct 24 ms 3060 KB Output is correct
5 Correct 25 ms 3020 KB Output is correct
6 Correct 25 ms 3020 KB Output is correct
7 Correct 24 ms 3012 KB Output is correct
8 Correct 24 ms 3012 KB Output is correct

Subtask #8
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 188 ms 3212 KB Output is correct
3 Correct 26 ms 3028 KB Output is correct
4 Correct 124 ms 3276 KB Output is correct
5 Correct 43 ms 3072 KB Output is correct
6 Correct 27 ms 3188 KB Output is correct
7 Correct 185 ms 3208 KB Output is correct
8 Correct 25 ms 3020 KB Output is correct