#include <bits/stdc++.h>
#define pb push_back
#define F first
#define S second
#define all(a) a.begin(),a.end()
#define pii pair <int,int>
#define Pii pair< pii , pii >
#define int long long
using namespace std ;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
const int maxn = 4000 + 10 , maxq = 1e7 + 1 , inf = 1e18 + 10 , mod= 998244353 ,lg = 20 ;
vector <pii> que ;int pr[maxn] , n ;
vector <int> k[maxn] ;
int ch(int x){
priority_queue <int> pq ;
for(int i =0 ; i < n ; i++){
pr[i] =0 ;
}
for(int i =0 ; i < que.size() ; i++){
int a = que[i].F , b = que[i].S ;
a = (a-x+n)%n ;
b = (b-x+n)%n;
if(b < a)swap(a , b) ;
pr[a] ++ ;
pr[b]-- ;
k[a].pb(b);
}
int ans =0 ;
for(int i =0 ; i < n ; i++){
if(i)pr[i] += pr[i-1] ;
for(int j =0 ; j < k[i].size() ; j++){
pq.push(k[i][j]) ;
}
while(pq.size() && pr[i] > 0){
int v = pq.top() ; pq.pop() ;
pr[i]-=2 ;
pr[v]+=2 ;
ans++;
}
}
for(int i = 0 ; i< n ; i++){
k[i].clear() ;
}
return ans ;
}
signed main(){
int m ;
cin >> n >> m ;
for(int i = 1; i <= m ; i++){
int a , b , c;
cin >> a >> b >> c;
a--;b--;
que.pb({a,b}) ;
}
int a =inf ;
for(int i = 0; i < n ; i++){
a = min(a , ch(i)) ;
}
cout << a ;
}
/*
*/
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
344 KB |
Output is correct |
3 |
Correct |
1 ms |
344 KB |
Output is correct |
4 |
Correct |
1 ms |
344 KB |
Output is correct |
5 |
Correct |
0 ms |
344 KB |
Output is correct |
6 |
Correct |
0 ms |
344 KB |
Output is correct |
7 |
Correct |
1 ms |
344 KB |
Output is correct |
8 |
Correct |
1 ms |
344 KB |
Output is correct |
9 |
Correct |
1 ms |
344 KB |
Output is correct |
10 |
Correct |
1 ms |
344 KB |
Output is correct |
11 |
Correct |
1 ms |
348 KB |
Output is correct |
12 |
Correct |
0 ms |
344 KB |
Output is correct |
13 |
Correct |
1 ms |
344 KB |
Output is correct |
14 |
Correct |
0 ms |
344 KB |
Output is correct |
15 |
Correct |
1 ms |
344 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
344 KB |
Output is correct |
3 |
Correct |
1 ms |
344 KB |
Output is correct |
4 |
Correct |
1 ms |
344 KB |
Output is correct |
5 |
Correct |
0 ms |
344 KB |
Output is correct |
6 |
Correct |
0 ms |
344 KB |
Output is correct |
7 |
Correct |
1 ms |
344 KB |
Output is correct |
8 |
Correct |
1 ms |
344 KB |
Output is correct |
9 |
Correct |
1 ms |
344 KB |
Output is correct |
10 |
Correct |
1 ms |
344 KB |
Output is correct |
11 |
Correct |
1 ms |
348 KB |
Output is correct |
12 |
Correct |
0 ms |
344 KB |
Output is correct |
13 |
Correct |
1 ms |
344 KB |
Output is correct |
14 |
Correct |
0 ms |
344 KB |
Output is correct |
15 |
Correct |
1 ms |
344 KB |
Output is correct |
16 |
Correct |
5 ms |
344 KB |
Output is correct |
17 |
Correct |
6 ms |
500 KB |
Output is correct |
18 |
Correct |
5 ms |
348 KB |
Output is correct |
19 |
Correct |
5 ms |
344 KB |
Output is correct |
20 |
Correct |
5 ms |
344 KB |
Output is correct |
21 |
Correct |
5 ms |
344 KB |
Output is correct |
22 |
Correct |
5 ms |
348 KB |
Output is correct |
23 |
Correct |
5 ms |
348 KB |
Output is correct |
24 |
Correct |
5 ms |
600 KB |
Output is correct |
25 |
Correct |
5 ms |
344 KB |
Output is correct |
26 |
Correct |
5 ms |
600 KB |
Output is correct |
27 |
Correct |
5 ms |
600 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
344 KB |
Output is correct |
3 |
Correct |
1 ms |
344 KB |
Output is correct |
4 |
Correct |
1 ms |
344 KB |
Output is correct |
5 |
Correct |
0 ms |
344 KB |
Output is correct |
6 |
Correct |
0 ms |
344 KB |
Output is correct |
7 |
Correct |
1 ms |
344 KB |
Output is correct |
8 |
Correct |
1 ms |
344 KB |
Output is correct |
9 |
Correct |
1 ms |
344 KB |
Output is correct |
10 |
Correct |
1 ms |
344 KB |
Output is correct |
11 |
Correct |
1 ms |
348 KB |
Output is correct |
12 |
Correct |
0 ms |
344 KB |
Output is correct |
13 |
Correct |
1 ms |
344 KB |
Output is correct |
14 |
Correct |
0 ms |
344 KB |
Output is correct |
15 |
Correct |
1 ms |
344 KB |
Output is correct |
16 |
Correct |
5 ms |
344 KB |
Output is correct |
17 |
Correct |
6 ms |
500 KB |
Output is correct |
18 |
Correct |
5 ms |
348 KB |
Output is correct |
19 |
Correct |
5 ms |
344 KB |
Output is correct |
20 |
Correct |
5 ms |
344 KB |
Output is correct |
21 |
Correct |
5 ms |
344 KB |
Output is correct |
22 |
Correct |
5 ms |
348 KB |
Output is correct |
23 |
Correct |
5 ms |
348 KB |
Output is correct |
24 |
Correct |
5 ms |
600 KB |
Output is correct |
25 |
Correct |
5 ms |
344 KB |
Output is correct |
26 |
Correct |
5 ms |
600 KB |
Output is correct |
27 |
Correct |
5 ms |
600 KB |
Output is correct |
28 |
Correct |
552 ms |
860 KB |
Output is correct |
29 |
Correct |
550 ms |
856 KB |
Output is correct |
30 |
Correct |
547 ms |
852 KB |
Output is correct |
31 |
Correct |
553 ms |
848 KB |
Output is correct |
32 |
Correct |
546 ms |
1192 KB |
Output is correct |
33 |
Correct |
550 ms |
6736 KB |
Output is correct |
34 |
Correct |
537 ms |
6844 KB |
Output is correct |
35 |
Correct |
545 ms |
12440 KB |
Output is correct |
36 |
Correct |
547 ms |
6616 KB |
Output is correct |
37 |
Correct |
417 ms |
600 KB |
Output is correct |
38 |
Correct |
238 ms |
600 KB |
Output is correct |
39 |
Correct |
292 ms |
760 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
344 KB |
Output is correct |
3 |
Correct |
1 ms |
344 KB |
Output is correct |
4 |
Correct |
1 ms |
344 KB |
Output is correct |
5 |
Correct |
0 ms |
344 KB |
Output is correct |
6 |
Correct |
0 ms |
344 KB |
Output is correct |
7 |
Correct |
1 ms |
344 KB |
Output is correct |
8 |
Correct |
1 ms |
344 KB |
Output is correct |
9 |
Correct |
1 ms |
344 KB |
Output is correct |
10 |
Correct |
1 ms |
344 KB |
Output is correct |
11 |
Correct |
1 ms |
348 KB |
Output is correct |
12 |
Correct |
0 ms |
344 KB |
Output is correct |
13 |
Correct |
1 ms |
344 KB |
Output is correct |
14 |
Correct |
0 ms |
344 KB |
Output is correct |
15 |
Correct |
1 ms |
344 KB |
Output is correct |
16 |
Correct |
5 ms |
344 KB |
Output is correct |
17 |
Correct |
6 ms |
500 KB |
Output is correct |
18 |
Correct |
5 ms |
348 KB |
Output is correct |
19 |
Correct |
5 ms |
344 KB |
Output is correct |
20 |
Correct |
5 ms |
344 KB |
Output is correct |
21 |
Correct |
5 ms |
344 KB |
Output is correct |
22 |
Correct |
5 ms |
348 KB |
Output is correct |
23 |
Correct |
5 ms |
348 KB |
Output is correct |
24 |
Correct |
5 ms |
600 KB |
Output is correct |
25 |
Correct |
5 ms |
344 KB |
Output is correct |
26 |
Correct |
5 ms |
600 KB |
Output is correct |
27 |
Correct |
5 ms |
600 KB |
Output is correct |
28 |
Correct |
552 ms |
860 KB |
Output is correct |
29 |
Correct |
550 ms |
856 KB |
Output is correct |
30 |
Correct |
547 ms |
852 KB |
Output is correct |
31 |
Correct |
553 ms |
848 KB |
Output is correct |
32 |
Correct |
546 ms |
1192 KB |
Output is correct |
33 |
Correct |
550 ms |
6736 KB |
Output is correct |
34 |
Correct |
537 ms |
6844 KB |
Output is correct |
35 |
Correct |
545 ms |
12440 KB |
Output is correct |
36 |
Correct |
547 ms |
6616 KB |
Output is correct |
37 |
Correct |
417 ms |
600 KB |
Output is correct |
38 |
Correct |
238 ms |
600 KB |
Output is correct |
39 |
Correct |
292 ms |
760 KB |
Output is correct |
40 |
Runtime error |
55 ms |
5592 KB |
Execution killed with signal 11 |
41 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
344 KB |
Output is correct |
3 |
Correct |
1 ms |
344 KB |
Output is correct |
4 |
Correct |
1 ms |
344 KB |
Output is correct |
5 |
Correct |
0 ms |
344 KB |
Output is correct |
6 |
Correct |
0 ms |
344 KB |
Output is correct |
7 |
Correct |
1 ms |
344 KB |
Output is correct |
8 |
Correct |
1 ms |
344 KB |
Output is correct |
9 |
Correct |
1 ms |
344 KB |
Output is correct |
10 |
Correct |
1 ms |
344 KB |
Output is correct |
11 |
Correct |
1 ms |
348 KB |
Output is correct |
12 |
Correct |
0 ms |
344 KB |
Output is correct |
13 |
Correct |
1 ms |
344 KB |
Output is correct |
14 |
Correct |
0 ms |
344 KB |
Output is correct |
15 |
Correct |
1 ms |
344 KB |
Output is correct |
16 |
Correct |
5 ms |
344 KB |
Output is correct |
17 |
Correct |
6 ms |
500 KB |
Output is correct |
18 |
Correct |
5 ms |
348 KB |
Output is correct |
19 |
Correct |
5 ms |
344 KB |
Output is correct |
20 |
Correct |
5 ms |
344 KB |
Output is correct |
21 |
Correct |
5 ms |
344 KB |
Output is correct |
22 |
Correct |
5 ms |
348 KB |
Output is correct |
23 |
Correct |
5 ms |
348 KB |
Output is correct |
24 |
Correct |
5 ms |
600 KB |
Output is correct |
25 |
Correct |
5 ms |
344 KB |
Output is correct |
26 |
Correct |
5 ms |
600 KB |
Output is correct |
27 |
Correct |
5 ms |
600 KB |
Output is correct |
28 |
Correct |
552 ms |
860 KB |
Output is correct |
29 |
Correct |
550 ms |
856 KB |
Output is correct |
30 |
Correct |
547 ms |
852 KB |
Output is correct |
31 |
Correct |
553 ms |
848 KB |
Output is correct |
32 |
Correct |
546 ms |
1192 KB |
Output is correct |
33 |
Correct |
550 ms |
6736 KB |
Output is correct |
34 |
Correct |
537 ms |
6844 KB |
Output is correct |
35 |
Correct |
545 ms |
12440 KB |
Output is correct |
36 |
Correct |
547 ms |
6616 KB |
Output is correct |
37 |
Correct |
417 ms |
600 KB |
Output is correct |
38 |
Correct |
238 ms |
600 KB |
Output is correct |
39 |
Correct |
292 ms |
760 KB |
Output is correct |
40 |
Runtime error |
55 ms |
5592 KB |
Execution killed with signal 11 |
41 |
Halted |
0 ms |
0 KB |
- |