#include <bits/stdc++.h>
#include "meetings.h"
using namespace std;
#define pb push_back
#define sz(a) (int)a.size()
#define all(a) begin(a),end(a)
const int mxN = (int)2e3+10;
int n, used[mxN];
set<int> S[mxN];
map<array<int,3>,int> M;
int query(int a, int b, int c){
if(a>b) swap(a,b);
if(b>c) swap(b,c);
if(a>b) swap(a,b);
if(M.count({a,b,c})) return M[{a,b,c}];
return Query(a,b,c);
}
void mergeSort(vector<int> &v, int a, int b){
if(sz(v)<=1) return;
int mid = sz(v)/2;
vector<int> w,x; w.clear(), x.clear();
for(int i = 0; i < mid; i++) w.pb(v[i]);
for(int i = mid; i < sz(v); i++) x.pb(v[i]);
mergeSort(w,a,b), mergeSort(x,a,b); v.clear();
int i = 0, j = 0;
while(i<sz(w) and j<sz(x)){
if(query(a,w[i],x[j])==w[i]) v.pb(w[i++]);
else v.pb(x[j++]);
}
while(i<sz(w)) v.pb(w[i++]);
while(j<sz(x)) v.pb(x[j++]);
}
void bridge(int a, int b){
if(a>b) swap(a,b);
return Bridge(a,b);
}
void recur(int a, set<int> SS){
if(SS.empty()) return;
auto itr = SS.begin();
int r = rand()%sz(SS);
while(r--) itr++;
int b = *itr; used[a]=used[b]=1;
vector<int> path; path.clear();
set<int> S[n+1];
for(int i = 0; i < n; i++) S[i].clear();
for(auto i : SS){ if(!used[i]){
int x = query(a,b,i);
if(x==i) path.pb(i),used[i]=1;
else S[x].insert(i);
} }
mergeSort(path,a,b);
if(path.empty()) bridge(a,b);
else bridge(a,path[0]),bridge(path.back(),b);
for(int i = 0; i < sz(path)-1; i++) bridge(path[i],path[i+1]);
for(auto u : path) recur(u,S[u]);
recur(a,S[a]); recur(b,S[b]);
}
void Solve(int N) {
n = N; vector<int> v;
for(int i = 1; i < n; i++) S[0].insert(i);
recur(0,S[0]);
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
336 KB |
Output is correct |
| 2 |
Correct |
1 ms |
336 KB |
Output is correct |
| 3 |
Correct |
0 ms |
336 KB |
Output is correct |
| 4 |
Correct |
1 ms |
336 KB |
Output is correct |
| 5 |
Correct |
0 ms |
336 KB |
Output is correct |
| 6 |
Correct |
0 ms |
336 KB |
Output is correct |
| 7 |
Correct |
0 ms |
336 KB |
Output is correct |
| 8 |
Correct |
1 ms |
336 KB |
Output is correct |
| 9 |
Correct |
0 ms |
336 KB |
Output is correct |
| 10 |
Correct |
1 ms |
336 KB |
Output is correct |
| 11 |
Correct |
1 ms |
336 KB |
Output is correct |
| 12 |
Correct |
0 ms |
336 KB |
Output is correct |
| 13 |
Correct |
0 ms |
336 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
336 KB |
Output is correct |
| 2 |
Correct |
1 ms |
336 KB |
Output is correct |
| 3 |
Correct |
0 ms |
336 KB |
Output is correct |
| 4 |
Correct |
1 ms |
336 KB |
Output is correct |
| 5 |
Correct |
0 ms |
336 KB |
Output is correct |
| 6 |
Correct |
0 ms |
336 KB |
Output is correct |
| 7 |
Correct |
0 ms |
336 KB |
Output is correct |
| 8 |
Correct |
1 ms |
336 KB |
Output is correct |
| 9 |
Correct |
0 ms |
336 KB |
Output is correct |
| 10 |
Correct |
1 ms |
336 KB |
Output is correct |
| 11 |
Correct |
1 ms |
336 KB |
Output is correct |
| 12 |
Correct |
0 ms |
336 KB |
Output is correct |
| 13 |
Correct |
0 ms |
336 KB |
Output is correct |
| 14 |
Correct |
1 ms |
464 KB |
Output is correct |
| 15 |
Correct |
1 ms |
464 KB |
Output is correct |
| 16 |
Correct |
1 ms |
464 KB |
Output is correct |
| 17 |
Correct |
1 ms |
464 KB |
Output is correct |
| 18 |
Correct |
1 ms |
464 KB |
Output is correct |
| 19 |
Correct |
1 ms |
464 KB |
Output is correct |
| 20 |
Correct |
1 ms |
464 KB |
Output is correct |
| 21 |
Correct |
1 ms |
464 KB |
Output is correct |
| 22 |
Correct |
1 ms |
464 KB |
Output is correct |
| 23 |
Correct |
1 ms |
464 KB |
Output is correct |
| 24 |
Correct |
1 ms |
464 KB |
Output is correct |
| 25 |
Correct |
1 ms |
464 KB |
Output is correct |
| 26 |
Correct |
1 ms |
464 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
336 KB |
Output is correct |
| 2 |
Correct |
1 ms |
336 KB |
Output is correct |
| 3 |
Correct |
0 ms |
336 KB |
Output is correct |
| 4 |
Correct |
1 ms |
336 KB |
Output is correct |
| 5 |
Correct |
0 ms |
336 KB |
Output is correct |
| 6 |
Correct |
0 ms |
336 KB |
Output is correct |
| 7 |
Correct |
0 ms |
336 KB |
Output is correct |
| 8 |
Correct |
1 ms |
336 KB |
Output is correct |
| 9 |
Correct |
0 ms |
336 KB |
Output is correct |
| 10 |
Correct |
1 ms |
336 KB |
Output is correct |
| 11 |
Correct |
1 ms |
336 KB |
Output is correct |
| 12 |
Correct |
0 ms |
336 KB |
Output is correct |
| 13 |
Correct |
0 ms |
336 KB |
Output is correct |
| 14 |
Correct |
1 ms |
464 KB |
Output is correct |
| 15 |
Correct |
1 ms |
464 KB |
Output is correct |
| 16 |
Correct |
1 ms |
464 KB |
Output is correct |
| 17 |
Correct |
1 ms |
464 KB |
Output is correct |
| 18 |
Correct |
1 ms |
464 KB |
Output is correct |
| 19 |
Correct |
1 ms |
464 KB |
Output is correct |
| 20 |
Correct |
1 ms |
464 KB |
Output is correct |
| 21 |
Correct |
1 ms |
464 KB |
Output is correct |
| 22 |
Correct |
1 ms |
464 KB |
Output is correct |
| 23 |
Correct |
1 ms |
464 KB |
Output is correct |
| 24 |
Correct |
1 ms |
464 KB |
Output is correct |
| 25 |
Correct |
1 ms |
464 KB |
Output is correct |
| 26 |
Correct |
1 ms |
464 KB |
Output is correct |
| 27 |
Correct |
4 ms |
720 KB |
Output is correct |
| 28 |
Correct |
4 ms |
720 KB |
Output is correct |
| 29 |
Correct |
4 ms |
592 KB |
Output is correct |
| 30 |
Correct |
4 ms |
720 KB |
Output is correct |
| 31 |
Correct |
5 ms |
720 KB |
Output is correct |
| 32 |
Correct |
5 ms |
720 KB |
Output is correct |
| 33 |
Correct |
8 ms |
976 KB |
Output is correct |
| 34 |
Correct |
10 ms |
1232 KB |
Output is correct |
| 35 |
Correct |
10 ms |
1180 KB |
Output is correct |
| 36 |
Correct |
6 ms |
592 KB |
Output is correct |
| 37 |
Correct |
8 ms |
716 KB |
Output is correct |
| 38 |
Correct |
9 ms |
592 KB |
Output is correct |
| 39 |
Correct |
6 ms |
592 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
275 ms |
2812 KB |
Output is correct |
| 2 |
Correct |
304 ms |
2792 KB |
Output is correct |
| 3 |
Correct |
326 ms |
3092 KB |
Output is correct |
| 4 |
Correct |
328 ms |
2800 KB |
Output is correct |
| 5 |
Correct |
211 ms |
1940 KB |
Output is correct |
| 6 |
Correct |
204 ms |
2460 KB |
Output is correct |
| 7 |
Correct |
381 ms |
3932 KB |
Output is correct |
| 8 |
Correct |
481 ms |
5480 KB |
Output is correct |
| 9 |
Correct |
418 ms |
5376 KB |
Output is correct |
| 10 |
Correct |
430 ms |
5040 KB |
Output is correct |
| 11 |
Correct |
443 ms |
5396 KB |
Output is correct |
| 12 |
Correct |
308 ms |
2172 KB |
Output is correct |
| 13 |
Correct |
155 ms |
1924 KB |
Output is correct |
| 14 |
Correct |
330 ms |
3420 KB |
Output is correct |
| 15 |
Correct |
268 ms |
3076 KB |
Output is correct |
| 16 |
Correct |
320 ms |
3252 KB |
Output is correct |
| 17 |
Correct |
716 ms |
5660 KB |
Output is correct |
| 18 |
Correct |
313 ms |
2564 KB |
Output is correct |
| 19 |
Correct |
332 ms |
2648 KB |
Output is correct |
| 20 |
Correct |
329 ms |
3052 KB |
Output is correct |
| 21 |
Correct |
317 ms |
3212 KB |
Output is correct |
| 22 |
Correct |
346 ms |
3324 KB |
Output is correct |
| 23 |
Correct |
415 ms |
3876 KB |
Output is correct |
| 24 |
Correct |
371 ms |
2896 KB |
Output is correct |
| 25 |
Correct |
406 ms |
2544 KB |
Output is correct |
| 26 |
Correct |
390 ms |
2836 KB |
Output is correct |
| 27 |
Correct |
405 ms |
2696 KB |
Output is correct |
| 28 |
Correct |
478 ms |
5068 KB |
Output is correct |
| 29 |
Correct |
401 ms |
5860 KB |
Output is correct |
| 30 |
Correct |
445 ms |
5928 KB |
Output is correct |
| 31 |
Correct |
414 ms |
5300 KB |
Output is correct |
| 32 |
Correct |
566 ms |
2136 KB |
Output is correct |
| 33 |
Correct |
456 ms |
1276 KB |
Output is correct |
| 34 |
Correct |
7 ms |
720 KB |
Output is correct |
| 35 |
Correct |
5 ms |
728 KB |
Output is correct |
| 36 |
Correct |
4 ms |
592 KB |
Output is correct |
| 37 |
Correct |
5 ms |
720 KB |
Output is correct |
| 38 |
Correct |
5 ms |
720 KB |
Output is correct |
| 39 |
Correct |
5 ms |
780 KB |
Output is correct |
| 40 |
Correct |
8 ms |
976 KB |
Output is correct |
| 41 |
Correct |
12 ms |
1184 KB |
Output is correct |
| 42 |
Correct |
10 ms |
1104 KB |
Output is correct |
| 43 |
Correct |
3 ms |
592 KB |
Output is correct |
| 44 |
Correct |
10 ms |
624 KB |
Output is correct |
| 45 |
Correct |
10 ms |
592 KB |
Output is correct |
| 46 |
Correct |
7 ms |
592 KB |
Output is correct |
| 47 |
Correct |
1 ms |
464 KB |
Output is correct |
| 48 |
Correct |
1 ms |
464 KB |
Output is correct |
| 49 |
Correct |
1 ms |
464 KB |
Output is correct |
| 50 |
Correct |
1 ms |
464 KB |
Output is correct |
| 51 |
Correct |
1 ms |
464 KB |
Output is correct |
| 52 |
Correct |
1 ms |
464 KB |
Output is correct |
| 53 |
Correct |
1 ms |
464 KB |
Output is correct |
| 54 |
Correct |
1 ms |
464 KB |
Output is correct |
| 55 |
Correct |
1 ms |
464 KB |
Output is correct |
| 56 |
Correct |
1 ms |
448 KB |
Output is correct |
| 57 |
Correct |
1 ms |
464 KB |
Output is correct |
| 58 |
Correct |
1 ms |
464 KB |
Output is correct |
| 59 |
Correct |
1 ms |
464 KB |
Output is correct |
| 60 |
Correct |
1 ms |
336 KB |
Output is correct |
| 61 |
Correct |
1 ms |
336 KB |
Output is correct |
| 62 |
Correct |
1 ms |
336 KB |
Output is correct |
| 63 |
Correct |
1 ms |
336 KB |
Output is correct |
| 64 |
Correct |
1 ms |
336 KB |
Output is correct |
| 65 |
Correct |
0 ms |
336 KB |
Output is correct |
| 66 |
Correct |
0 ms |
336 KB |
Output is correct |
| 67 |
Correct |
0 ms |
336 KB |
Output is correct |
| 68 |
Correct |
1 ms |
336 KB |
Output is correct |
| 69 |
Correct |
0 ms |
336 KB |
Output is correct |
| 70 |
Correct |
0 ms |
336 KB |
Output is correct |
| 71 |
Correct |
1 ms |
336 KB |
Output is correct |
| 72 |
Correct |
1 ms |
408 KB |
Output is correct |
