oj.uz

Submission #582696

# Submission time Handle Problem Language Result Execution time Memory
582696 2022-06-24T09:29:56 Z chirathnirodha Autobahn (COI21_autobahn) C++17
100 / 100
 148 ms 21264 KB 
//Coded by Chirath Nirodha
#include<bits/stdc++.h>
//#include <ext/pb_ds/assoc_container.hpp>
//using namespace __gnu_pbds;
using namespace std;
#define F first
#define S second
#define PB push_back
#define MP make_pair
#define P push
#define I insert
typedef long long ll;
typedef long double ld;
typedef unsigned long long ull;
//typedef tree<int,null_type,less<int>,rb_tree_tag,tree_order_statistics_node_update> indexed_set;
const ll mod=1e9+7;
inline void io(){
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	cout.tie(NULL);
}
void solve(){
    io();
	ll n,k,x;cin>>n>>k>>x;
	ll l[n],r[n],t[n];
	vector<pair<ll,int> > v;
	for(int i=0;i<n;i++){
		cin>>l[i]>>t[i]>>r[i];
		l[i]--;
		v.PB(MP(l[i],1));
		v.PB(MP(r[i],2));
		v.PB(MP(l[i]+x,3));
		v.PB(MP(r[i]+x,4));
		if(r[i]-l[i]-t[i]<=0)continue;
		v.PB(MP(l[i]+t[i],5));
		v.PB(MP(r[i],6));
		v.PB(MP(l[i]+t[i]+x,7));
		v.PB(MP(r[i]+x,8));
	}
	sort(v.begin(),v.end());
	ll pos=-x,inc=0,dec=0,cnt=0,val=0,cntp=0;
	ll ans=0;
	for(int i=0;i<v.size();i++){
		ll d=v[i].F-(pos+x);
		if(cnt>=k)val+=inc*d;
		if(cntp>=k)val+=dec*d;
		ans=max(ans,val);
		if(v[i].S==1)cnt++;
		else if(v[i].S==2)cnt--;
		else if(v[i].S==3)cntp++;
		else if(v[i].S==4)cntp--;
		else if(v[i].S==5)inc++;
		else if(v[i].S==6)inc--;
		else if(v[i].S==7)dec--;
		else dec++;
		pos+=d;
	}
	cout<<ans<<endl;
}
int main(){
    io();
	solve();
	//int t;cin>>t;for(int i=0;i<t;i++)solve();
    return 0;
}

Compilation message

autobahn.cpp: In function 'void solve()':
autobahn.cpp:43:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<long long int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   43 |  for(int i=0;i<v.size();i++){
      |              ~^~~~~~~~~

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 320 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 316 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 324 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct

Subtask #2
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 320 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 316 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 324 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 2 ms 596 KB Output is correct
13 Correct 2 ms 596 KB Output is correct
14 Correct 2 ms 600 KB Output is correct
15 Correct 2 ms 460 KB Output is correct
16 Correct 2 ms 588 KB Output is correct
17 Correct 2 ms 580 KB Output is correct
18 Correct 2 ms 596 KB Output is correct
19 Correct 1 ms 596 KB Output is correct
20 Correct 1 ms 596 KB Output is correct

Subtask #3
50.0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 320 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 316 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 324 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 2 ms 596 KB Output is correct
13 Correct 2 ms 596 KB Output is correct
14 Correct 2 ms 600 KB Output is correct
15 Correct 2 ms 460 KB Output is correct
16 Correct 2 ms 588 KB Output is correct
17 Correct 2 ms 580 KB Output is correct
18 Correct 2 ms 596 KB Output is correct
19 Correct 1 ms 596 KB Output is correct
20 Correct 1 ms 596 KB Output is correct
21 Correct 125 ms 21168 KB Output is correct
22 Correct 148 ms 21180 KB Output is correct
23 Correct 123 ms 21164 KB Output is correct
24 Correct 137 ms 21216 KB Output is correct
25 Correct 128 ms 21172 KB Output is correct
26 Correct 135 ms 21164 KB Output is correct
27 Correct 122 ms 21264 KB Output is correct
28 Correct 133 ms 21236 KB Output is correct
29 Correct 125 ms 21172 KB Output is correct