oj.uz

답안 #969535

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
969535 2024-04-25T09:40:26 Z batsukh2006 Palembang Bridges (APIO15_bridge) C++17
22 / 100
 256 ms 18564 KB 
#include<iostream>
#include<stdio.h>
#include<math.h>
#include<map>
#include<string>
#include<algorithm>
#include<vector>
#include<string.h>
#include<utility>
#include<set>
#include<cmath>
#include<queue>
#include<deque>
#include<functional>
#include<stack>
#include<limits.h>
#include<iomanip>
#include<unordered_map> 
#include<numeric>
#include<tuple>
#include<bitset>
#include<ext/pb_ds/assoc_container.hpp>
#include<ext/pb_ds/tree_policy.hpp>
using namespace std;
using namespace __gnu_pbds;
#define MOD 1000000007
#define int long long
#define ss second
#define ff first
#define endl '\n'
#define ordered_set tree<pair<int, int>, null_type, less<pair<int, int> >, rb_tree_tag, tree_order_statistics_node_update>
signed main(){
    // freopen("file.in", "r", stdin);
    // freopen("file.out", "w", stdout);
    ios::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    
    int k,n; cin>>k>>n;
    int sum=0;
    vector<pair<int,int> > v,d;
    for(int i=0; i<n; i++){
    	int s,t;
    	char p,q;
    	cin>>p>>s>>q>>t;
    	if(p==q){
    		sum+=abs(s-t);
    	}else{
    		sum++;
    		v.push_back({s,i});
    		v.push_back({t,i});
    		d.push_back({s,t});
    	}
    }
    if(v.empty()){
    	cout<<sum;
    	return 0;
    }
    int sl=0,sr=0;
    ordered_set f,s;
    vector<bool> vis(n);
    sort(v.begin(),v.end());
    int ml=0,mr=v[v.size()/2].ff;
    for(int i=0; i<v.size(); i++){
    	sr+=abs(mr-v[i].ff);
    	s.insert({v[i].ff,v[i].ss});
    }
    int res=sl+sr;
    if(k==1){
	    cout<<res+sum;
	}else{
		for(int i=0; i<v.size(); i++){
			if(!vis[v[i].ss]){
				vis[v[i].ss]=1;
				s.erase({d[v[i].ss].ff,v[i].ss});
				s.erase({d[v[i].ss].ss,v[i].ss});
				f.insert({d[v[i].ss].ff,v[i].ss});
				f.insert({d[v[i].ss].ss,v[i].ss});
				int fh=f.size()/2,sh=s.size()/2;
				int pl=0,pr=0;
				if(f.size()>0) pl=(*f.find_by_order(fh)).ff;
				if(s.size()>0) pr=(*s.find_by_order(sh)).ff;
				sl+=abs(d[v[i].ss].ff-ml);
				sl+=abs(d[v[i].ss].ss-ml);
				sl+=fh*(pl-ml);
				sl-=(f.size()-fh)*(pl-ml);
				sr-=abs(d[v[i].ss].ff-mr);
				sr-=abs(d[v[i].ss].ss-mr);
				sr+=sh*(pr-mr);
				sr-=(s.size()-sh)*(pr-mr);
				ml=pl;
				mr=pr;
				res=min(res,sl+sr);
			}
		}
		cout<<res+sum;
	}
    return 0;
}

Compilation message

bridge.cpp: In function 'int main()':
bridge.cpp:64:19: 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]
   64 |     for(int i=0; i<v.size(); i++){
      |                  ~^~~~~~~~~
bridge.cpp:72:17: 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]
   72 |   for(int i=0; i<v.size(); i++){
      |                ~^~~~~~~~~

Subtask #1
8.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 604 KB Output is correct
4 Correct 1 ms 604 KB Output is correct
5 Correct 1 ms 604 KB Output is correct
6 Correct 1 ms 604 KB Output is correct
7 Correct 1 ms 604 KB Output is correct
8 Correct 1 ms 604 KB Output is correct
9 Correct 1 ms 600 KB Output is correct
10 Correct 2 ms 348 KB Output is correct
11 Correct 1 ms 604 KB Output is correct

Subtask #2
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 604 KB Output is correct
4 Correct 1 ms 604 KB Output is correct
5 Correct 1 ms 600 KB Output is correct
6 Correct 1 ms 604 KB Output is correct
7 Correct 1 ms 604 KB Output is correct
8 Correct 1 ms 604 KB Output is correct
9 Correct 1 ms 604 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 516 KB Output is correct
12 Correct 176 ms 14648 KB Output is correct
13 Correct 221 ms 18496 KB Output is correct
14 Correct 183 ms 15700 KB Output is correct
15 Correct 82 ms 10564 KB Output is correct
16 Correct 235 ms 18528 KB Output is correct
17 Correct 256 ms 17568 KB Output is correct
18 Correct 210 ms 18564 KB Output is correct
19 Correct 210 ms 17404 KB Output is correct
20 Correct 119 ms 12096 KB Output is correct
21 Correct 229 ms 18312 KB Output is correct

Subtask #3
0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Incorrect 1 ms 348 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #4
0 / 32.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 600 KB Output is correct
3 Incorrect 0 ms 348 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #5
0 / 37.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Incorrect 1 ms 344 KB Output isn't correct
4 Halted 0 ms 0 KB -