#include <bits/stdc++.h>
#define mp make_pair
#define pb push_back
#define pii pair<int,int>
#define LL long long
#define st first
#define nd second
#define endl '\n'
using namespace std;
const int MAXNODE=100000*33;
int n,m,cl[MAXNODE],cr[MAXNODE],tme=1,a,b,c,d,one;
LL f[2][MAXNODE],ans=1e16;
void upd(int &x,int l,int r,int ll,LL val,int d) {
if(x==0) {
x=++tme;
f[0][x]=f[1][x]=1e16;
}
if(l==ll&&r==ll) {
f[d][x]=min(f[d][x],val);
return;
}
int md=(l+r)/2;
if(ll<=md)
upd(cl[x],l,md,ll,val,d);
else upd(cr[x],md+1,r,ll,val,d);
f[d][x]=min(cl[x]==0?1e17:f[d][cl[x]],cr[x]==0?1e17:f[d][cr[x]]);
}
LL que(int x,int l,int r,int ll,int rr,int d) {
if(x==0)
return 1e16;
if(l>rr||r<ll)
return 1e16;
if(l>=ll&&r<=rr)
return f[d][x];
int md=(l+r)/2;
return min(que(cl[x],l,md,ll,rr,d),que(cr[x],md+1,r,ll,rr,d));
}
int main() {
ios_base::sync_with_stdio(0);
cin.tie(0);
cin>>n>>m;
f[0][1]=f[1][1]=1e16;
for(int i=0;i<n;++i) {
cin>>a>>b>>c>>d;
LL left=que(1,1,m,a,b,0);
if(a==1) left=0;
LL right=que(1,1,m,a,b,1);
if(b==m) right=0;
ans=min(ans,left+right+d);
one=1;
upd(one,1,m,c,left+d,0);
one=1;
upd(one,1,m,c,right+d,1);
}
if(ans==1e16)
cout<<-1<<endl;
else cout<<ans<<endl;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
79524 KB |
Output is correct |
2 |
Correct |
0 ms |
79524 KB |
Output is correct |
3 |
Correct |
0 ms |
79524 KB |
Output is correct |
4 |
Correct |
0 ms |
79524 KB |
Output is correct |
5 |
Correct |
0 ms |
79524 KB |
Output is correct |
6 |
Correct |
0 ms |
79524 KB |
Output is correct |
7 |
Correct |
0 ms |
79524 KB |
Output is correct |
8 |
Correct |
0 ms |
79524 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
79524 KB |
Output is correct |
2 |
Correct |
0 ms |
79524 KB |
Output is correct |
3 |
Correct |
0 ms |
79524 KB |
Output is correct |
4 |
Correct |
0 ms |
79524 KB |
Output is correct |
5 |
Correct |
0 ms |
79524 KB |
Output is correct |
6 |
Correct |
0 ms |
79524 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
79524 KB |
Output is correct |
2 |
Correct |
0 ms |
79524 KB |
Output is correct |
3 |
Correct |
0 ms |
79524 KB |
Output is correct |
4 |
Correct |
0 ms |
79524 KB |
Output is correct |
5 |
Correct |
3 ms |
79524 KB |
Output is correct |
6 |
Correct |
3 ms |
79524 KB |
Output is correct |
7 |
Correct |
0 ms |
79524 KB |
Output is correct |
8 |
Correct |
3 ms |
79524 KB |
Output is correct |
9 |
Correct |
0 ms |
79524 KB |
Output is correct |
10 |
Correct |
3 ms |
79524 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
29 ms |
79524 KB |
Output is correct |
2 |
Correct |
93 ms |
79524 KB |
Output is correct |
3 |
Correct |
323 ms |
79524 KB |
Output is correct |
4 |
Correct |
366 ms |
79524 KB |
Output is correct |
5 |
Correct |
229 ms |
79524 KB |
Output is correct |
6 |
Correct |
463 ms |
79524 KB |
Output is correct |
7 |
Correct |
606 ms |
79524 KB |
Output is correct |
8 |
Correct |
583 ms |
79524 KB |
Output is correct |
9 |
Correct |
39 ms |
79524 KB |
Output is correct |
10 |
Correct |
233 ms |
79524 KB |
Output is correct |
11 |
Correct |
259 ms |
79524 KB |
Output is correct |
12 |
Correct |
503 ms |
79524 KB |
Output is correct |
13 |
Correct |
419 ms |
79524 KB |
Output is correct |
14 |
Correct |
353 ms |
79524 KB |
Output is correct |