#include<bits/stdc++.h>
#define int long long
//#define ll long long
#define down cout<<'\n';
#define NHP ios_base::sync_with_stdio(0);cout.tie(0);cin.tie(0);
#define modwwe int t;cin>>t; while(t--)
#define bit(i,j) (i>>j&1)
#define sobit(a) __builtin_popcountll(a)
#define task "test"
#define fin(x) freopen(x".inp","r",stdin)
#define fou(x) freopen(x".out","w",stdout)
#define pb push_back
#define checktime cerr << (double)clock() / CLOCKS_PER_SEC * 1000 << " ms";
using namespace std;
const int inf=1e18;
void phongbeo();
const int mod2=1e9+7;
const int mod1=998244353;
struct icd
{
int a,b;
};
struct ib
{
int a;
int b;
};
struct ic
{
int a,b,c;
};
struct id
{
int a,b,c,d;
};
struct ie
{
int a,b,c, d,e,f;
};
int n,m,s1,s2,s4,s3,sf,k,r,mid,s5,s6,mx,s7,s8,s9,mx2,res,dem2=0,dem=0,l;
int i,s10,s12;
int el=29;
main()
{
#ifndef ONLINE_JUDGE
//fin(task),fou(task);
#endif
NHP
/// cin>>s1;
// modwwe
phongbeo(),down
checktime
}
id a[100001];
vector<int> v;
struct cmp
{
bool operator()(ib a,ib b)
{
return a.a>b.a;
}
};
bool color[100001];
int b[100001];
bool cmp3(ib a,ib b)
{
return a.a<b.a;
}
struct IT
{
vector<ib> v2[100001];
int c[100001];
ib t[400001];
ib mer(ib a,ib b)
{
if(a.a<=b.a) return a;
else return b;
}
void setup(int node,int l,int r)
{
if(l==r)
{
sort(v2[l].begin(),v2[l].end(),cmp3);
if(v2[l].size()!=0)
t[node]=v2[l][0];
else t[node].a=1e18,t[node].b=0;
return;
}
int mid=l+r>>1;
setup(node<<1,l,mid);
setup(node<<1|1,mid+1,r);
t[node]=mer(t[node<<1],t[node<<1|1]);
}
void upd2(int node,int l,int r,int l1,int r1)
{
if(l>r1||r<l1) return;
if(l>=l1&&r<=r1)
{
c[l]++;
if(c[l]<v2[l].size())
{
t[node]=v2[l][c[l]];
}
else t[node].a=1e18,t[node].b=0;
return;
}
int mid=l+r>>1;
upd2(node<<1,l,mid,l1,r1);
upd2(node<<1|1,mid+1,r,l1,r1);
t[node]=mer(t[node<<1],t[node<<1|1]);
}
void upd(int node,int l,int r,int l1,int r1,ib x)
{
if(l>r1||r<l1) return;
if(l>=l1&&r<=r1)
{
v2[l].pb(x);
return;
}
int mid=l+r>>1;
upd(node<<1,l,mid,l1,r1,x);
upd(node<<1|1,mid+1,r,l1,r1,x);
}
ib get(int node,int l,int r,int l1,int r1)
{
if(l>r1||r<l1) return{inf,0};
if(l>=l1&&r<=r1) return t[node];
int mid=l+r>>1;
return mer(get(node<<1,l,mid,l1,r1),get(node<<1|1,mid+1,r,l1,r1)) ;
}
} st1,st2;
void phongbeo()
{
cin>>n>>m;
for(int i=1; i<=m; i++)
cin>>a[i].a>>a[i].b>>a[i].c>>a[i].d,a[i].b--,v.pb(a[i].a),b[i]=a[i].a;
/// cost i->j =a[j]
/// find min(cost(i))
sort(v.begin(),v.end());
for(int i=1; i<=m; i++)
{
a[i].a=lower_bound(v.begin(),v.end(),a[i].a)-v.begin()+1;
if(a[i].b!=0)st1.upd(1,1,m,a[i].a,a[i].a, {a[i].b+b[i],i}),
st2.upd(1,1,m,a[i].a,a[i].a, {a[i].b-b[i],i});
}
st1.setup(1,1,m);
st2.setup(1,1,m);
priority_queue<ib,vector<ib>,cmp>p;
for(int i=1;i<=m;i++)
if(a[i].b==0)
p.push({a[i].d,i});
while(!p.empty())
{
ib x=p.top();
p.pop();
if(a[x.b].c==n){
cout<<x.a;
exit(0);}
if(color[x.b]) continue;
color[x.b]=1;
s3=a[x.b].c+b[x.b];
while(true)/// task 1
{
ib ss2=st1.get(1,1,m,a[x.b].a,m);
if(ss2.a<=s3)
{
p.push({a[ss2.b].d+x.a,ss2.b});
st1.upd2(1,1,m,a[ss2.b].a,a[ss2.b].a);
st2.upd2(1,1,m,a[ss2.b].a,a[ss2.b].a);
}
else break;
}
s3=a[x.b].c-b[x.b];
while(true)/// task 1
{
ib ss2=st2.get(1,1,m,1,a[x.b].a);
if(ss2.a<=s3)
{
p.push({a[ss2.b].d+x.a,ss2.b});
st1.upd2(1,1,m,a[ss2.b].a,a[ss2.b].a);
st2.upd2(1,1,m,a[ss2.b].a,a[ss2.b].a);
}
else break;
}
}
}
Compilation message
treatment.cpp:44:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
44 | main()
| ^~~~
treatment.cpp: In member function 'void IT::setup(long long int, long long int, long long int)':
treatment.cpp:91:18: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
91 | int mid=l+r>>1;
| ~^~
treatment.cpp: In member function 'void IT::upd2(long long int, long long int, long long int, long long int, long long int)':
treatment.cpp:102:20: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<ib>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
102 | if(c[l]<v2[l].size())
| ~~~~^~~~~~~~~~~~~
treatment.cpp:109:18: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
109 | int mid=l+r>>1;
| ~^~
treatment.cpp: In member function 'void IT::upd(long long int, long long int, long long int, long long int, long long int, ib)':
treatment.cpp:122:18: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
122 | int mid=l+r>>1;
| ~^~
treatment.cpp: In member function 'ib IT::get(long long int, long long int, long long int, long long int, long long int)':
treatment.cpp:130:18: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
130 | int mid=l+r>>1;
| ~^~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
85 ms |
29076 KB |
Output is correct |
| 2 |
Incorrect |
83 ms |
30316 KB |
Output isn't correct |
| 3 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
3 ms |
12892 KB |
Output is correct |
| 2 |
Correct |
2 ms |
12892 KB |
Output is correct |
| 3 |
Correct |
2 ms |
12892 KB |
Output is correct |
| 4 |
Correct |
3 ms |
12892 KB |
Output is correct |
| 5 |
Incorrect |
2 ms |
12892 KB |
Output isn't correct |
| 6 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
3 ms |
12892 KB |
Output is correct |
| 2 |
Correct |
2 ms |
12892 KB |
Output is correct |
| 3 |
Correct |
2 ms |
12892 KB |
Output is correct |
| 4 |
Correct |
3 ms |
12892 KB |
Output is correct |
| 5 |
Incorrect |
2 ms |
12892 KB |
Output isn't correct |
| 6 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
85 ms |
29076 KB |
Output is correct |
| 2 |
Incorrect |
83 ms |
30316 KB |
Output isn't correct |
| 3 |
Halted |
0 ms |
0 KB |
- |
