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Submission #311732

# Submission time Handle Problem Language Result Execution time Memory
311732 2020-10-11T08:55:17 Z grt Table Tennis (info1cup20_tabletennis) C++17
100 / 100
 194 ms 4744 KB 
#include <bits/stdc++.h>

using namespace std;

using vi = vector<int>;
using ll = long long;
using pi = pair<int,int>;

#define ST first
#define ND second
#define PB push_back

const int nax = 150 * 1000 + 10 + 400;
int n, k;
int w[nax];

int main() {
    //ios_base::sync_with_stdio(0);
    //cin.tie(0);
    cin >> n >> k;
    for(int i = 1; i <= n + k; ++i) cin >> w[i];
    for(int l = 0; l <= k; ++l) {
        for(int r = 0; r + l <= k; ++r) {
            int lt = k - (l + r);
            int a = l + 1, b = n + k - r;
            int sum = w[a] + w[b];
            vi ans = {a, b};
            bool ok = 1;
            while(a + 1 < b) {
                a++;
                b--;
                while(w[a] + w[b] != sum) {
                    if(w[a] + w[b] > sum) {
                        b--;
                        lt--;
                        if(lt < 0) {
                            ok = 0;
                            break;
                        }
                    } else {
                        a++;
                        lt--;
                        if(lt < 0) {
                            ok = 0;
                            break;
                        }
                    }
                }
                ans.PB(a);
                ans.PB(b);
                if(!ok) break;
            }
            if(ok) {
                while(lt > 0) {
                    ans.pop_back();
                    ans.pop_back();
                    lt -= 2;
                }
                sort(ans.begin(), ans.end());
                for(int x : ans) cout << w[x] << " ";
                return 0;
            }
        }
    }

}

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 3 ms 384 KB Output is correct

Subtask #2
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 20 ms 768 KB Output is correct
2 Correct 148 ms 4588 KB Output is correct
3 Correct 149 ms 4588 KB Output is correct
4 Correct 148 ms 4744 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 148 ms 3052 KB Output is correct
2 Correct 150 ms 4584 KB Output is correct
3 Correct 148 ms 4584 KB Output is correct
4 Correct 149 ms 4588 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 256 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct

Subtask #5
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 256 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct

Subtask #6
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 256 KB Output is correct
2 Correct 3 ms 384 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 2 ms 384 KB Output is correct
5 Correct 3 ms 384 KB Output is correct
6 Correct 3 ms 384 KB Output is correct

Subtask #7
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 256 KB Output is correct
2 Correct 154 ms 4696 KB Output is correct
3 Correct 149 ms 4588 KB Output is correct
4 Correct 147 ms 4584 KB Output is correct
5 Correct 148 ms 4588 KB Output is correct
6 Correct 151 ms 4716 KB Output is correct
7 Correct 147 ms 4588 KB Output is correct
8 Correct 149 ms 4584 KB Output is correct

Subtask #8
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 169 ms 4604 KB Output is correct
3 Correct 149 ms 4588 KB Output is correct
4 Correct 164 ms 4588 KB Output is correct
5 Correct 146 ms 4588 KB Output is correct
6 Correct 150 ms 4584 KB Output is correct
7 Correct 194 ms 4716 KB Output is correct
8 Correct 148 ms 4716 KB Output is correct