oj.uz

Submission #588591

# Submission time Handle Problem Language Result Execution time Memory
588591 2022-07-03T16:03:26 Z guagua0407 Palembang Bridges (APIO15_bridge) C++17
100 / 100
 279 ms 14384 KB 
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define f first
#define s second
#define _ ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);

multiset<ll> st,en;
ll lsum=0,rsum=0;

bool compare(pair<ll,ll> a,pair<ll,ll> b){
	return a.f+a.s<b.f+b.s;
}

void insert(ll v){
	ll mid=(st.size()?*st.rbegin():1e9+1);
	if(v<=mid){
		st.insert(v);
		lsum+=v;
	}
	else{
		en.insert(v);
		rsum+=v;
	}
	while(st.size()>en.size()+1){
		lsum-=*st.rbegin();
		rsum+=*st.rbegin();
		en.insert(*st.rbegin());
		st.erase(st.find(*st.rbegin()));
	}
	while(en.size()>st.size()){
		lsum+=*en.begin();
		rsum-=*en.begin();
		st.insert(*en.begin());
		en.erase(en.find(*en.begin()));
	}
}

int main() {_
	ll k,n;
	cin>>k>>n;
	ll ans=0;
	vector<pair<ll,ll>> num;
	for(ll i=0;i<n;i++){
		char a,b;
		ll s,t;
		cin>>a>>s>>b>>t;
		if(a==b) ans+=abs(s-t);
		else num.push_back({s,t});
	}
	sort(num.begin(),num.end(),compare);
	vector<ll> pre(num.size()+1,0);
	for(ll i=0;i<num.size();i++){
		insert(num[i].f);
		insert(num[i].s);
		pre[i+1]=rsum-lsum;
	}
	ll ans2=pre[num.size()];
	if(k==2){
		st.clear();
		en.clear();
		lsum=0;
		rsum=0;
		for(ll i=num.size();i>=1;i--){
			insert(num[i-1].f);
			insert(num[i-1].s);
			ans2=min(ans2,rsum-lsum+pre[i-1]);
			/*or(auto v=st.begin();v!=st.end();v++){
				cout<<*v<<' ';
			}
			cout<<'\n';
			for(auto v=en.begin();v!=en.end();v++){
				cout<<*v<<' ';
			}
			cout<<'\n';*/
		}
	}
	cout<<ans+ans2+num.size();
	return 0;
}
//maybe its multiset not set

Compilation message

bridge.cpp: In function 'int main()':
bridge.cpp:53:14: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   53 |  for(ll i=0;i<num.size();i++){
      |             ~^~~~~~~~~~~

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 340 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 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 340 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 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 2 ms 340 KB Output is correct
12 Correct 80 ms 11940 KB Output is correct
13 Correct 123 ms 11960 KB Output is correct
14 Correct 100 ms 10812 KB Output is correct
15 Correct 65 ms 7208 KB Output is correct
16 Correct 84 ms 12040 KB Output is correct
17 Correct 84 ms 11988 KB Output is correct
18 Correct 67 ms 12036 KB Output is correct
19 Correct 92 ms 11996 KB Output is correct
20 Correct 90 ms 12020 KB Output is correct
21 Correct 96 ms 12068 KB Output is correct

Subtask #3
9.0 / 9.0

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

Subtask #4
32.0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 2 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 2 ms 340 KB Output is correct
20 Correct 1 ms 468 KB Output is correct
21 Correct 2 ms 340 KB Output is correct
22 Correct 1 ms 468 KB Output is correct
23 Correct 1 ms 356 KB Output is correct
24 Correct 1 ms 340 KB Output is correct

Subtask #5
37.0 / 37.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 316 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 324 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 316 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 2 ms 448 KB Output is correct
14 Correct 2 ms 412 KB Output is correct
15 Correct 2 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 2 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 2 ms 340 KB Output is correct
23 Correct 1 ms 360 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 135 ms 12728 KB Output is correct
26 Correct 233 ms 12960 KB Output is correct
27 Correct 227 ms 13688 KB Output is correct
28 Correct 279 ms 14324 KB Output is correct
29 Correct 234 ms 14312 KB Output is correct
30 Correct 88 ms 7744 KB Output is correct
31 Correct 126 ms 13696 KB Output is correct
32 Correct 143 ms 14384 KB Output is correct
33 Correct 122 ms 14104 KB Output is correct
34 Correct 174 ms 14268 KB Output is correct
35 Correct 142 ms 13888 KB Output is correct
36 Correct 144 ms 14020 KB Output is correct
37 Correct 157 ms 12752 KB Output is correct