| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 801046 |
2023-08-02T04:13:24 Z |
반딧불(#10089) |
IOI Fever (JOI21_fever) |
C++17 |
|
5000 ms |
2668 KB |
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
int n;
int x[100002], y[100002];
int dir[100002];
int cnt;
bool on[100002];
vector<pair<int, int> > link[100002];
int ans;
void backtrack(int s){
if(s==n+1){
cnt = 0;
for(int i=1; i<=n; i++) on[i] = 0, link[i].clear();
for(int i=1; i<=n; i++){
for(int j=1; j<=n; j++){
if(x[i] > x[j]) continue;
if(x[i] + y[i] == x[j] + y[j] && (dir[i] ^ dir[j]) == 3){
if((dir[i] == 0 && dir[j] == 3) || (dir[i] == 1 || dir[j] == 2)){
link[i].push_back(make_pair(j, x[j]-x[i]));
link[j].push_back(make_pair(i, x[j]-x[i]));
}
}
if(x[i] - y[i] == x[j] - y[j] && (dir[i] ^ dir[j]) == 1){
if((dir[i] == 3 && dir[j] == 2) || (dir[i] == 0 || dir[j] == 1)){
link[i].push_back(make_pair(j, x[j]-x[i]));
link[j].push_back(make_pair(i, x[j]-x[i]));
}
}
}
}
priority_queue<pair<int, int>, vector<pair<int, int> > , greater<pair<int, int> > > pq;
pq.push(make_pair(0, 1));
while(!pq.empty()){
int x = pq.top().second, t = pq.top().first; pq.pop();
if(on[x]) continue;
on[x] = 1, cnt++;
for(pair<int, int> y: link[x]){
if(y.second < t) continue;
pq.push(make_pair(y.second, y.first));
}
}
ans = max(ans, cnt);
return;
}
for(int d=0; d<4; d++){
dir[s] = d;
backtrack(s+1);
}
}
int main(){
scanf("%d", &n);
for(int i=1; i<=n; i++){
scanf("%d %d", &x[i], &y[i]);
}
backtrack(1);
printf("%d", ans);
}
Compilation message
fever.cpp: In function 'int main()':
fever.cpp:61:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
61 | scanf("%d", &n);
| ~~~~~^~~~~~~~~~
fever.cpp:63:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
63 | scanf("%d %d", &x[i], &y[i]);
| ~~~~~^~~~~~~~~~~~~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
2644 KB |
Output is correct |
| 2 |
Correct |
2 ms |
2644 KB |
Output is correct |
| 3 |
Correct |
1 ms |
2644 KB |
Output is correct |
| 4 |
Correct |
1 ms |
2644 KB |
Output is correct |
| 5 |
Correct |
2 ms |
2644 KB |
Output is correct |
| 6 |
Correct |
1 ms |
2644 KB |
Output is correct |
| 7 |
Correct |
1 ms |
2644 KB |
Output is correct |
| 8 |
Correct |
2 ms |
2656 KB |
Output is correct |
| 9 |
Correct |
1 ms |
2644 KB |
Output is correct |
| 10 |
Correct |
2 ms |
2644 KB |
Output is correct |
| 11 |
Correct |
1 ms |
2656 KB |
Output is correct |
| 12 |
Correct |
1 ms |
2644 KB |
Output is correct |
| 13 |
Correct |
2 ms |
2644 KB |
Output is correct |
| 14 |
Correct |
2 ms |
2644 KB |
Output is correct |
| 15 |
Correct |
2 ms |
2644 KB |
Output is correct |
| 16 |
Correct |
4 ms |
2664 KB |
Output is correct |
| 17 |
Correct |
4 ms |
2660 KB |
Output is correct |
| 18 |
Correct |
4 ms |
2668 KB |
Output is correct |
| 19 |
Correct |
4 ms |
2644 KB |
Output is correct |
| 20 |
Correct |
4 ms |
2660 KB |
Output is correct |
| 21 |
Correct |
4 ms |
2644 KB |
Output is correct |
| 22 |
Correct |
4 ms |
2644 KB |
Output is correct |
| 23 |
Correct |
4 ms |
2656 KB |
Output is correct |
| 24 |
Correct |
6 ms |
2644 KB |
Output is correct |
| 25 |
Correct |
5 ms |
2644 KB |
Output is correct |
| 26 |
Correct |
6 ms |
2644 KB |
Output is correct |
| 27 |
Correct |
6 ms |
2644 KB |
Output is correct |
| 28 |
Correct |
5 ms |
2644 KB |
Output is correct |
| 29 |
Correct |
4 ms |
2644 KB |
Output is correct |
| 30 |
Correct |
1 ms |
2644 KB |
Output is correct |
| 31 |
Correct |
6 ms |
2644 KB |
Output is correct |
| 32 |
Correct |
4 ms |
2644 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
2644 KB |
Output is correct |
| 2 |
Correct |
2 ms |
2644 KB |
Output is correct |
| 3 |
Correct |
1 ms |
2644 KB |
Output is correct |
| 4 |
Correct |
1 ms |
2644 KB |
Output is correct |
| 5 |
Correct |
2 ms |
2644 KB |
Output is correct |
| 6 |
Correct |
1 ms |
2644 KB |
Output is correct |
| 7 |
Correct |
1 ms |
2644 KB |
Output is correct |
| 8 |
Correct |
2 ms |
2656 KB |
Output is correct |
| 9 |
Correct |
1 ms |
2644 KB |
Output is correct |
| 10 |
Correct |
2 ms |
2644 KB |
Output is correct |
| 11 |
Correct |
1 ms |
2656 KB |
Output is correct |
| 12 |
Correct |
1 ms |
2644 KB |
Output is correct |
| 13 |
Correct |
2 ms |
2644 KB |
Output is correct |
| 14 |
Correct |
2 ms |
2644 KB |
Output is correct |
| 15 |
Correct |
2 ms |
2644 KB |
Output is correct |
| 16 |
Correct |
4 ms |
2664 KB |
Output is correct |
| 17 |
Correct |
4 ms |
2660 KB |
Output is correct |
| 18 |
Correct |
4 ms |
2668 KB |
Output is correct |
| 19 |
Correct |
4 ms |
2644 KB |
Output is correct |
| 20 |
Correct |
4 ms |
2660 KB |
Output is correct |
| 21 |
Correct |
4 ms |
2644 KB |
Output is correct |
| 22 |
Correct |
4 ms |
2644 KB |
Output is correct |
| 23 |
Correct |
4 ms |
2656 KB |
Output is correct |
| 24 |
Correct |
6 ms |
2644 KB |
Output is correct |
| 25 |
Correct |
5 ms |
2644 KB |
Output is correct |
| 26 |
Correct |
6 ms |
2644 KB |
Output is correct |
| 27 |
Correct |
6 ms |
2644 KB |
Output is correct |
| 28 |
Correct |
5 ms |
2644 KB |
Output is correct |
| 29 |
Correct |
4 ms |
2644 KB |
Output is correct |
| 30 |
Correct |
1 ms |
2644 KB |
Output is correct |
| 31 |
Correct |
6 ms |
2644 KB |
Output is correct |
| 32 |
Correct |
4 ms |
2644 KB |
Output is correct |
| 33 |
Execution timed out |
5021 ms |
2556 KB |
Time limit exceeded |
| 34 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Execution timed out |
5060 ms |
2644 KB |
Time limit exceeded |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
2644 KB |
Output is correct |
| 2 |
Correct |
2 ms |
2644 KB |
Output is correct |
| 3 |
Correct |
1 ms |
2644 KB |
Output is correct |
| 4 |
Correct |
1 ms |
2644 KB |
Output is correct |
| 5 |
Correct |
2 ms |
2644 KB |
Output is correct |
| 6 |
Correct |
1 ms |
2644 KB |
Output is correct |
| 7 |
Correct |
1 ms |
2644 KB |
Output is correct |
| 8 |
Correct |
2 ms |
2656 KB |
Output is correct |
| 9 |
Correct |
1 ms |
2644 KB |
Output is correct |
| 10 |
Correct |
2 ms |
2644 KB |
Output is correct |
| 11 |
Correct |
1 ms |
2656 KB |
Output is correct |
| 12 |
Correct |
1 ms |
2644 KB |
Output is correct |
| 13 |
Correct |
2 ms |
2644 KB |
Output is correct |
| 14 |
Correct |
2 ms |
2644 KB |
Output is correct |
| 15 |
Correct |
2 ms |
2644 KB |
Output is correct |
| 16 |
Correct |
4 ms |
2664 KB |
Output is correct |
| 17 |
Correct |
4 ms |
2660 KB |
Output is correct |
| 18 |
Correct |
4 ms |
2668 KB |
Output is correct |
| 19 |
Correct |
4 ms |
2644 KB |
Output is correct |
| 20 |
Correct |
4 ms |
2660 KB |
Output is correct |
| 21 |
Correct |
4 ms |
2644 KB |
Output is correct |
| 22 |
Correct |
4 ms |
2644 KB |
Output is correct |
| 23 |
Correct |
4 ms |
2656 KB |
Output is correct |
| 24 |
Correct |
6 ms |
2644 KB |
Output is correct |
| 25 |
Correct |
5 ms |
2644 KB |
Output is correct |
| 26 |
Correct |
6 ms |
2644 KB |
Output is correct |
| 27 |
Correct |
6 ms |
2644 KB |
Output is correct |
| 28 |
Correct |
5 ms |
2644 KB |
Output is correct |
| 29 |
Correct |
4 ms |
2644 KB |
Output is correct |
| 30 |
Correct |
1 ms |
2644 KB |
Output is correct |
| 31 |
Correct |
6 ms |
2644 KB |
Output is correct |
| 32 |
Correct |
4 ms |
2644 KB |
Output is correct |
| 33 |
Execution timed out |
5021 ms |
2556 KB |
Time limit exceeded |
| 34 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
2644 KB |
Output is correct |
| 2 |
Correct |
2 ms |
2644 KB |
Output is correct |
| 3 |
Correct |
1 ms |
2644 KB |
Output is correct |
| 4 |
Correct |
1 ms |
2644 KB |
Output is correct |
| 5 |
Correct |
2 ms |
2644 KB |
Output is correct |
| 6 |
Correct |
1 ms |
2644 KB |
Output is correct |
| 7 |
Correct |
1 ms |
2644 KB |
Output is correct |
| 8 |
Correct |
2 ms |
2656 KB |
Output is correct |
| 9 |
Correct |
1 ms |
2644 KB |
Output is correct |
| 10 |
Correct |
2 ms |
2644 KB |
Output is correct |
| 11 |
Correct |
1 ms |
2656 KB |
Output is correct |
| 12 |
Correct |
1 ms |
2644 KB |
Output is correct |
| 13 |
Correct |
2 ms |
2644 KB |
Output is correct |
| 14 |
Correct |
2 ms |
2644 KB |
Output is correct |
| 15 |
Correct |
2 ms |
2644 KB |
Output is correct |
| 16 |
Correct |
4 ms |
2664 KB |
Output is correct |
| 17 |
Correct |
4 ms |
2660 KB |
Output is correct |
| 18 |
Correct |
4 ms |
2668 KB |
Output is correct |
| 19 |
Correct |
4 ms |
2644 KB |
Output is correct |
| 20 |
Correct |
4 ms |
2660 KB |
Output is correct |
| 21 |
Correct |
4 ms |
2644 KB |
Output is correct |
| 22 |
Correct |
4 ms |
2644 KB |
Output is correct |
| 23 |
Correct |
4 ms |
2656 KB |
Output is correct |
| 24 |
Correct |
6 ms |
2644 KB |
Output is correct |
| 25 |
Correct |
5 ms |
2644 KB |
Output is correct |
| 26 |
Correct |
6 ms |
2644 KB |
Output is correct |
| 27 |
Correct |
6 ms |
2644 KB |
Output is correct |
| 28 |
Correct |
5 ms |
2644 KB |
Output is correct |
| 29 |
Correct |
4 ms |
2644 KB |
Output is correct |
| 30 |
Correct |
1 ms |
2644 KB |
Output is correct |
| 31 |
Correct |
6 ms |
2644 KB |
Output is correct |
| 32 |
Correct |
4 ms |
2644 KB |
Output is correct |
| 33 |
Execution timed out |
5021 ms |
2556 KB |
Time limit exceeded |
| 34 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
2644 KB |
Output is correct |
| 2 |
Correct |
2 ms |
2644 KB |
Output is correct |
| 3 |
Correct |
1 ms |
2644 KB |
Output is correct |
| 4 |
Correct |
1 ms |
2644 KB |
Output is correct |
| 5 |
Correct |
2 ms |
2644 KB |
Output is correct |
| 6 |
Correct |
1 ms |
2644 KB |
Output is correct |
| 7 |
Correct |
1 ms |
2644 KB |
Output is correct |
| 8 |
Correct |
2 ms |
2656 KB |
Output is correct |
| 9 |
Correct |
1 ms |
2644 KB |
Output is correct |
| 10 |
Correct |
2 ms |
2644 KB |
Output is correct |
| 11 |
Correct |
1 ms |
2656 KB |
Output is correct |
| 12 |
Correct |
1 ms |
2644 KB |
Output is correct |
| 13 |
Correct |
2 ms |
2644 KB |
Output is correct |
| 14 |
Correct |
2 ms |
2644 KB |
Output is correct |
| 15 |
Correct |
2 ms |
2644 KB |
Output is correct |
| 16 |
Correct |
4 ms |
2664 KB |
Output is correct |
| 17 |
Correct |
4 ms |
2660 KB |
Output is correct |
| 18 |
Correct |
4 ms |
2668 KB |
Output is correct |
| 19 |
Correct |
4 ms |
2644 KB |
Output is correct |
| 20 |
Correct |
4 ms |
2660 KB |
Output is correct |
| 21 |
Correct |
4 ms |
2644 KB |
Output is correct |
| 22 |
Correct |
4 ms |
2644 KB |
Output is correct |
| 23 |
Correct |
4 ms |
2656 KB |
Output is correct |
| 24 |
Correct |
6 ms |
2644 KB |
Output is correct |
| 25 |
Correct |
5 ms |
2644 KB |
Output is correct |
| 26 |
Correct |
6 ms |
2644 KB |
Output is correct |
| 27 |
Correct |
6 ms |
2644 KB |
Output is correct |
| 28 |
Correct |
5 ms |
2644 KB |
Output is correct |
| 29 |
Correct |
4 ms |
2644 KB |
Output is correct |
| 30 |
Correct |
1 ms |
2644 KB |
Output is correct |
| 31 |
Correct |
6 ms |
2644 KB |
Output is correct |
| 32 |
Correct |
4 ms |
2644 KB |
Output is correct |
| 33 |
Execution timed out |
5021 ms |
2556 KB |
Time limit exceeded |
| 34 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
2644 KB |
Output is correct |
| 2 |
Correct |
2 ms |
2644 KB |
Output is correct |
| 3 |
Correct |
1 ms |
2644 KB |
Output is correct |
| 4 |
Correct |
1 ms |
2644 KB |
Output is correct |
| 5 |
Correct |
2 ms |
2644 KB |
Output is correct |
| 6 |
Correct |
1 ms |
2644 KB |
Output is correct |
| 7 |
Correct |
1 ms |
2644 KB |
Output is correct |
| 8 |
Correct |
2 ms |
2656 KB |
Output is correct |
| 9 |
Correct |
1 ms |
2644 KB |
Output is correct |
| 10 |
Correct |
2 ms |
2644 KB |
Output is correct |
| 11 |
Correct |
1 ms |
2656 KB |
Output is correct |
| 12 |
Correct |
1 ms |
2644 KB |
Output is correct |
| 13 |
Correct |
2 ms |
2644 KB |
Output is correct |
| 14 |
Correct |
2 ms |
2644 KB |
Output is correct |
| 15 |
Correct |
2 ms |
2644 KB |
Output is correct |
| 16 |
Correct |
4 ms |
2664 KB |
Output is correct |
| 17 |
Correct |
4 ms |
2660 KB |
Output is correct |
| 18 |
Correct |
4 ms |
2668 KB |
Output is correct |
| 19 |
Correct |
4 ms |
2644 KB |
Output is correct |
| 20 |
Correct |
4 ms |
2660 KB |
Output is correct |
| 21 |
Correct |
4 ms |
2644 KB |
Output is correct |
| 22 |
Correct |
4 ms |
2644 KB |
Output is correct |
| 23 |
Correct |
4 ms |
2656 KB |
Output is correct |
| 24 |
Correct |
6 ms |
2644 KB |
Output is correct |
| 25 |
Correct |
5 ms |
2644 KB |
Output is correct |
| 26 |
Correct |
6 ms |
2644 KB |
Output is correct |
| 27 |
Correct |
6 ms |
2644 KB |
Output is correct |
| 28 |
Correct |
5 ms |
2644 KB |
Output is correct |
| 29 |
Correct |
4 ms |
2644 KB |
Output is correct |
| 30 |
Correct |
1 ms |
2644 KB |
Output is correct |
| 31 |
Correct |
6 ms |
2644 KB |
Output is correct |
| 32 |
Correct |
4 ms |
2644 KB |
Output is correct |
| 33 |
Execution timed out |
5021 ms |
2556 KB |
Time limit exceeded |
| 34 |
Halted |
0 ms |
0 KB |
- |
