oj.uz

Submission #527553

# Submission time Handle Problem Language Result Execution time Memory
527553 2022-02-17T15:39:53 Z Koosha_mv Palembang Bridges (APIO15_bridge) C++14
100 / 100
 246 ms 15788 KB 
#include <bits/stdc++.h>
using namespace std;
#define dbgv(v) cout<<#v<<" = "; f(i,0,v.size()) cout<<v[i]<<" "; cout<<endl
#define dbga(a,x,y) cout<<#a<<" = "; f(i,x,y) cout<<a[i]<<" "; cout<<endl
#define erorp(x) cout<<#x<<"={"<<(x.F)<<" , "<<x.S<<"}"<<endl
#define eror(x) cout<<#x<<'='<<(x)<<endl
#define f_(i,a,b) for(int i=a;i>=b;i--)
#define f(i,a,b) for(int i=a;i<b;i++)
#define nb(x) __builtin_popcount(x)
#define all(v) v.begin(),v.end()
#define bit(n,k) (((n)>>(k))&1)
#define Add(x,y) x=(x+y)%mod
#define maxm(a,b) a=max(a,b)
#define minm(a,b) a=min(a,b)
#define lst(x) x[x.size()-1]
#define sz(x) int(x.size())
#define mp make_pair
#define ll long long
#define pb push_back
#define S second
#define F first
#define int ll
 
const int N=2e5+99,inf=1e9;
 
int k,n,sum,ans,Sum[2][N],Cnt[2][N];
vector<pair<int,int>> a,b;
 
void addsum(int x,int val,int s){
	for(x++;x<N;x+=x&-x) Sum[s][x]+=val;
}
void addcnt(int x,int val,int s){
	for(x++;x<N;x+=x&-x) Cnt[s][x]+=val;
}
int getsum(int x,int s){
	int res=0;
	for(x++;x;x-=x&-x) res+=Sum[s][x];
	return res;
}
int getcnt(int x,int s){
	int res=0;
	for(x++;x;x-=x&-x) res+=Cnt[s][x];
	return res;
}
bool cmp(pair<int,int> i,pair<int,int> j){
	return i.F+i.S<j.F+j.S;
}
vector<int> solve(vector<pair<int,int>> a){
	f(s,0,2) f(i,0,N) Sum[s][i]=Cnt[s][i]=0;
	vector<int> res,vec;
	f(i,0,a.size()) vec.pb(a[i].F),vec.pb(a[i].S);
	sort(all(vec));
	
	f(i,0,a.size()){
		int posl=lower_bound(all(vec),a[i].F)-vec.begin(),posr=lower_bound(all(vec),a[i].S)-vec.begin();
		addcnt(posl,1,1);
		addcnt(posr,1,0);
		addsum(posl,a[i].F,1);
		addsum(posr,a[i].S,0);
		int l=-1,r=vec.size();
		while(l+1<r){
			int mid=(l+r)>>1;
			if(getcnt(mid,0)<getcnt(vec.size()-1,1)-getcnt(mid,1)){
				l=mid;
			}
			else{
				r=mid;
			}
		}
		l=r;
		int pos=vec[l];
		res.pb(pos*getcnt(l,0)-getsum(l,0)+(getsum(vec.size()-1,1)-getsum(l,1))-pos*(getcnt(vec.size()-1,1)-getcnt(l,1)));
	}
	return res;
}
main(){
	ios::sync_with_stdio(false);cin.tie(nullptr);cout.tie(nullptr);
	cin>>k>>n;
	f(i,0,n){
		char c1,c2;
		int l,r;
		cin>>c1>>l>>c2>>r;
		if(l>r) swap(l,r);
		sum+=r-l;
		if(c1==c2) continue ;
		sum++;
		a.pb({l,r});	
	}
	
	if(a.size()==0) cout<<sum,exit(0);
	
	sort(all(a),cmp); b=a;
	reverse(all(b));
	f(i,0,b.size()) b[i].F=inf-b[i].F,b[i].S=inf-b[i].S,swap(b[i].F,b[i].S);
	
	vector<int> A=solve(a),B=solve(b);
	ans=A.back();
	f(i,0,A.size()-1){
		minm(ans,A[i]+B[B.size()-i-2]);
	}
	if(k==1) cout<<A.back()+A.back()+sum;
	else cout<<ans+ans+sum;

}

Compilation message

bridge.cpp: In function 'std::vector<long long int> solve(std::vector<std::pair<long long int, long long int> >)':
bridge.cpp:8:31: 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]
    8 | #define f(i,a,b) for(int i=a;i<b;i++)
......
   51 |  f(i,0,a.size()) vec.pb(a[i].F),vec.pb(a[i].S);
      |    ~~~~~~~~~~~~                
bridge.cpp:51:2: note: in expansion of macro 'f'
   51 |  f(i,0,a.size()) vec.pb(a[i].F),vec.pb(a[i].S);
      |  ^
bridge.cpp:8:31: 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]
    8 | #define f(i,a,b) for(int i=a;i<b;i++)
......
   54 |  f(i,0,a.size()){
      |    ~~~~~~~~~~~~                
bridge.cpp:54:2: note: in expansion of macro 'f'
   54 |  f(i,0,a.size()){
      |  ^
bridge.cpp: At global scope:
bridge.cpp:76:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   76 | main(){
      | ^~~~
bridge.cpp: In function 'int main()':
bridge.cpp:8:31: 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]
    8 | #define f(i,a,b) for(int i=a;i<b;i++)
......
   94 |  f(i,0,b.size()) b[i].F=inf-b[i].F,b[i].S=inf-b[i].S,swap(b[i].F,b[i].S);
      |    ~~~~~~~~~~~~                
bridge.cpp:94:2: note: in expansion of macro 'f'
   94 |  f(i,0,b.size()) b[i].F=inf-b[i].F,b[i].S=inf-b[i].S,swap(b[i].F,b[i].S);
      |  ^
bridge.cpp:8:31: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    8 | #define f(i,a,b) for(int i=a;i<b;i++)
......
   98 |  f(i,0,A.size()-1){
      |    ~~~~~~~~~~~~~~              
bridge.cpp:98:2: note: in expansion of macro 'f'
   98 |  f(i,0,A.size()-1){
      |  ^

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 4 ms 6604 KB Output is correct
4 Correct 5 ms 6604 KB Output is correct
5 Correct 4 ms 6604 KB Output is correct
6 Correct 4 ms 6604 KB Output is correct
7 Correct 4 ms 6604 KB Output is correct
8 Correct 4 ms 6604 KB Output is correct
9 Correct 4 ms 6660 KB Output is correct
10 Correct 4 ms 6604 KB Output is correct
11 Correct 4 ms 6604 KB Output is correct

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 4 ms 6604 KB Output is correct
4 Correct 5 ms 6604 KB Output is correct
5 Correct 5 ms 6604 KB Output is correct
6 Correct 4 ms 6604 KB Output is correct
7 Correct 4 ms 6604 KB Output is correct
8 Correct 4 ms 6604 KB Output is correct
9 Correct 5 ms 6604 KB Output is correct
10 Correct 4 ms 6604 KB Output is correct
11 Correct 4 ms 6604 KB Output is correct
12 Correct 110 ms 15620 KB Output is correct
13 Correct 229 ms 15716 KB Output is correct
14 Correct 222 ms 14920 KB Output is correct
15 Correct 129 ms 11692 KB Output is correct
16 Correct 97 ms 15764 KB Output is correct
17 Correct 159 ms 15672 KB Output is correct
18 Correct 164 ms 15784 KB Output is correct
19 Correct 167 ms 15600 KB Output is correct
20 Correct 113 ms 15684 KB Output is correct
21 Correct 170 ms 15788 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 3 ms 6476 KB Output is correct
4 Correct 4 ms 6476 KB Output is correct
5 Correct 3 ms 6476 KB Output is correct
6 Correct 4 ms 6476 KB Output is correct
7 Correct 4 ms 6576 KB Output is correct
8 Correct 3 ms 6476 KB Output is correct
9 Correct 4 ms 6476 KB Output is correct
10 Correct 4 ms 6476 KB Output is correct
11 Correct 4 ms 6476 KB Output is correct
12 Correct 3 ms 6476 KB Output is correct

Subtask #4
32.0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 3 ms 6476 KB Output is correct
4 Correct 3 ms 6476 KB Output is correct
5 Correct 3 ms 6476 KB Output is correct
6 Correct 4 ms 6476 KB Output is correct
7 Correct 3 ms 6476 KB Output is correct
8 Correct 3 ms 6476 KB Output is correct
9 Correct 3 ms 6476 KB Output is correct
10 Correct 4 ms 6476 KB Output is correct
11 Correct 3 ms 6476 KB Output is correct
12 Correct 3 ms 6476 KB Output is correct
13 Correct 4 ms 6604 KB Output is correct
14 Correct 4 ms 6604 KB Output is correct
15 Correct 5 ms 6604 KB Output is correct
16 Correct 5 ms 6604 KB Output is correct
17 Correct 5 ms 6604 KB Output is correct
18 Correct 4 ms 6604 KB Output is correct
19 Correct 5 ms 6604 KB Output is correct
20 Correct 5 ms 6604 KB Output is correct
21 Correct 4 ms 6604 KB Output is correct
22 Correct 5 ms 6604 KB Output is correct
23 Correct 4 ms 6604 KB Output is correct
24 Correct 4 ms 6604 KB Output is correct

Subtask #5
37.0 / 37.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 4 ms 6476 KB Output is correct
4 Correct 3 ms 6476 KB Output is correct
5 Correct 3 ms 6476 KB Output is correct
6 Correct 3 ms 6476 KB Output is correct
7 Correct 4 ms 6476 KB Output is correct
8 Correct 4 ms 6476 KB Output is correct
9 Correct 4 ms 6476 KB Output is correct
10 Correct 3 ms 6476 KB Output is correct
11 Correct 3 ms 6476 KB Output is correct
12 Correct 3 ms 6476 KB Output is correct
13 Correct 4 ms 6604 KB Output is correct
14 Correct 5 ms 6604 KB Output is correct
15 Correct 4 ms 6604 KB Output is correct
16 Correct 4 ms 6604 KB Output is correct
17 Correct 4 ms 6620 KB Output is correct
18 Correct 4 ms 6604 KB Output is correct
19 Correct 5 ms 6604 KB Output is correct
20 Correct 4 ms 6604 KB Output is correct
21 Correct 5 ms 6604 KB Output is correct
22 Correct 5 ms 6604 KB Output is correct
23 Correct 4 ms 6664 KB Output is correct
24 Correct 5 ms 6604 KB Output is correct
25 Correct 103 ms 15664 KB Output is correct
26 Correct 175 ms 15616 KB Output is correct
27 Correct 246 ms 15768 KB Output is correct
28 Correct 240 ms 15664 KB Output is correct
29 Correct 231 ms 15668 KB Output is correct
30 Correct 122 ms 11356 KB Output is correct
31 Correct 100 ms 15588 KB Output is correct
32 Correct 159 ms 15616 KB Output is correct
33 Correct 158 ms 15616 KB Output is correct
34 Correct 173 ms 15776 KB Output is correct
35 Correct 103 ms 15616 KB Output is correct
36 Correct 163 ms 15648 KB Output is correct
37 Correct 95 ms 15592 KB Output is correct