#include <bits/stdc++.h>
using namespace std;
#define break_it assert(false)
#define int long long
main(void) {
ios::sync_with_stdio(0);
cin.tie(0);
int n, k;
cin >> n >> k;
vector <int> a(n+k);
for(int i = 0; i < n +k; i ++) cin >> a[i];
function <void(int,int, int)> check2=[&](int sum, int start, int end) {
vector <int> ans;
ans.push_back(a[start-1]);
ans.push_back(a[end+1]);
int l = start, r = end;
int cnt = 0;
while(l < r) {
if(cnt >= k) return;
if(a[l] + a[r] == sum) {
ans.push_back(a[l]);
ans.push_back(a[r]);
l ++;
r --;
}else if(a[l] + a[r] > sum) {
r--;
cnt ++;
}else l ++, cnt ++;
if(ans.size() >= n) break;
}
if(ans.size() == n) {
sort(ans.begin(), ans.end());
for(auto i : ans) cout << i << " ";
exit(0);
}
};
function <void(int, int, int)> solve=[&](int start, int end, int sm = 0) {
vector <int> fors;
int sum = 0;
if(start == end and end == -1) sum = sm;
else sum = a[start] + a[end];
int none = -1;
int l = 0, r = n+k-1;
while(l < r){
if(a[l] + a[r] > sum) {
if(none != -1) return;
none = r;
r--;
}else if(a[l] + a[r] < sum) {
if(none != -1) return;
none = l;
l ++;
}
l ++;
r --;
}
if(none == -1) {
none = (n+k)/2;
}
for(int i = 0; i <= n+k-1; i ++) {
if(none == i) continue;
fors.push_back(a[i]);
}
for(auto i : fors) cout << i << " ";
exit(0);
};
if(k == 1) {
solve(0, n+k-1, 0);
solve(0, n+k-2, 0);
solve(1, n+k-1, 0);
return 0;
}
map <int,int> mp;
vector <int> candidate;
for(int i = 0; i <= k; i ++) {
for(int j = i+n-1; j < n+k; j ++) {
check2(a[i] + a[j], i+1, j-1);
}
}
return false;
}
Compilation message
tabletennis.cpp:6:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
6 | main(void) {
| ^~~~
tabletennis.cpp: In lambda function:
tabletennis.cpp:31:18: warning: comparison of integer expressions of different signedness: 'std::vector<long long int>::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare]
31 | if(ans.size() >= n) break;
| ~~~~~~~~~~~^~~~
tabletennis.cpp:33:17: warning: comparison of integer expressions of different signedness: 'std::vector<long long int>::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare]
33 | if(ans.size() == n) {
| ~~~~~~~~~~~^~~~
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
332 KB |
Output is correct |
2 |
Correct |
1 ms |
332 KB |
Output is correct |
3 |
Correct |
1 ms |
332 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
5 ms |
976 KB |
Output is correct |
2 |
Correct |
25 ms |
4292 KB |
Output is correct |
3 |
Correct |
25 ms |
4172 KB |
Output is correct |
4 |
Correct |
25 ms |
4168 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
36 ms |
4176 KB |
Output is correct |
2 |
Correct |
30 ms |
4212 KB |
Output is correct |
3 |
Correct |
30 ms |
4292 KB |
Output is correct |
4 |
Correct |
30 ms |
4176 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
204 KB |
Output is correct |
2 |
Correct |
2 ms |
204 KB |
Output is correct |
3 |
Correct |
0 ms |
204 KB |
Output is correct |
4 |
Correct |
2 ms |
300 KB |
Output is correct |
5 |
Correct |
0 ms |
204 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
204 KB |
Output is correct |
2 |
Correct |
0 ms |
204 KB |
Output is correct |
3 |
Correct |
0 ms |
204 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
204 KB |
Output is correct |
2 |
Correct |
1 ms |
332 KB |
Output is correct |
3 |
Correct |
1 ms |
332 KB |
Output is correct |
4 |
Correct |
1 ms |
332 KB |
Output is correct |
5 |
Correct |
1 ms |
332 KB |
Output is correct |
6 |
Correct |
1 ms |
332 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Correct |
30 ms |
4236 KB |
Output is correct |
3 |
Correct |
31 ms |
4172 KB |
Output is correct |
4 |
Correct |
29 ms |
4268 KB |
Output is correct |
5 |
Correct |
29 ms |
4172 KB |
Output is correct |
6 |
Correct |
36 ms |
4204 KB |
Output is correct |
7 |
Correct |
30 ms |
4216 KB |
Output is correct |
8 |
Correct |
30 ms |
4180 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
204 KB |
Output is correct |
2 |
Correct |
144 ms |
4264 KB |
Output is correct |
3 |
Correct |
29 ms |
4156 KB |
Output is correct |
4 |
Correct |
83 ms |
4164 KB |
Output is correct |
5 |
Correct |
65 ms |
4388 KB |
Output is correct |
6 |
Correct |
32 ms |
6200 KB |
Output is correct |
7 |
Correct |
114 ms |
4172 KB |
Output is correct |
8 |
Correct |
29 ms |
4176 KB |
Output is correct |