#include<iostream>
#include<vector>
#include<algorithm>
#define ep emplace
#define eb emplace_back
#define fi first
#define se second
#define all(x) (x).begin(),(x).end()
using namespace std;
typedef long long ll;
typedef pair<int,int>pi;
typedef pair<ll,ll>pl;
const int inf=1e9+7;
const ll INF=1e18;
struct query
{
int t,l,r,c;
bool operator<(const query&x)const
{
return t<x.t;
}
};
int main()
{
ios_base::sync_with_stdio(false);
cin.tie(nullptr);
int n,m;
cin>>n>>m;
vector<query>qv(m);
for(auto&t:qv)
cin>>t.t>>t.l>>t.r>>t.c;
sort(all(qv));
ll ans=INF;
for(int i=1;i<(1<<m);i++)
{
vector<pi>itv;
int pt=0;
ll val=0;
for(int j=0;j<m;j++)
{
if((i>>j&1)==0)
continue;
val+=qv[j].c;
for(pi&t:itv)
{
if(t.fi>1)
t.fi+=qv[j].t-pt;
if(t.se<n)
t.se-=qv[j].t-pt;
}
pt=qv[j].t;
vector<pi>nitv;
itv.eb(qv[j].l,qv[j].r);
sort(all(itv));
pi cur=itv[0];
for(pi&t:itv)
{
if(t.fi>t.se)
continue;
if(cur.se+1>=t.fi)
cur.se=max(cur.se,t.se);
else
nitv.eb(cur),cur=t;
}
nitv.eb(cur);
itv=nitv;
}
if((int)itv.size()==1&&itv[0]==pi(1,n))
ans=min(ans,val);
}
if(ans==INF)
ans=-1;
cout<<ans<<endl;
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
47 ms |
5112 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
512 KB |
Output is correct |
2 |
Correct |
71 ms |
384 KB |
Output is correct |
3 |
Correct |
70 ms |
384 KB |
Output is correct |
4 |
Correct |
75 ms |
504 KB |
Output is correct |
5 |
Correct |
76 ms |
384 KB |
Output is correct |
6 |
Correct |
60 ms |
384 KB |
Output is correct |
7 |
Correct |
81 ms |
384 KB |
Output is correct |
8 |
Correct |
100 ms |
384 KB |
Output is correct |
9 |
Correct |
81 ms |
384 KB |
Output is correct |
10 |
Correct |
92 ms |
384 KB |
Output is correct |
11 |
Correct |
138 ms |
384 KB |
Output is correct |
12 |
Correct |
70 ms |
384 KB |
Output is correct |
13 |
Correct |
71 ms |
384 KB |
Output is correct |
14 |
Correct |
57 ms |
384 KB |
Output is correct |
15 |
Correct |
67 ms |
384 KB |
Output is correct |
16 |
Correct |
85 ms |
384 KB |
Output is correct |
17 |
Correct |
109 ms |
384 KB |
Output is correct |
18 |
Correct |
58 ms |
384 KB |
Output is correct |
19 |
Correct |
86 ms |
384 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
512 KB |
Output is correct |
2 |
Correct |
71 ms |
384 KB |
Output is correct |
3 |
Correct |
70 ms |
384 KB |
Output is correct |
4 |
Correct |
75 ms |
504 KB |
Output is correct |
5 |
Correct |
76 ms |
384 KB |
Output is correct |
6 |
Correct |
60 ms |
384 KB |
Output is correct |
7 |
Correct |
81 ms |
384 KB |
Output is correct |
8 |
Correct |
100 ms |
384 KB |
Output is correct |
9 |
Correct |
81 ms |
384 KB |
Output is correct |
10 |
Correct |
92 ms |
384 KB |
Output is correct |
11 |
Correct |
138 ms |
384 KB |
Output is correct |
12 |
Correct |
70 ms |
384 KB |
Output is correct |
13 |
Correct |
71 ms |
384 KB |
Output is correct |
14 |
Correct |
57 ms |
384 KB |
Output is correct |
15 |
Correct |
67 ms |
384 KB |
Output is correct |
16 |
Correct |
85 ms |
384 KB |
Output is correct |
17 |
Correct |
109 ms |
384 KB |
Output is correct |
18 |
Correct |
58 ms |
384 KB |
Output is correct |
19 |
Correct |
86 ms |
384 KB |
Output is correct |
20 |
Incorrect |
26 ms |
512 KB |
Output isn't correct |
21 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
47 ms |
5112 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |