Submission #1026724

#	Time	Username	Problem	Language	Result	Execution time	Memory
1026724		vjudge1	Netrpeljivost (COI23_netrpeljivost)	C++17	10 / 100	1606 ms	122448 KiB

Main

#include <bits/stdc++.h>

using namespace std;

typedef long long lo; 

#define fi first
#define se second
#define endl "\n"
#define pb push_back
#define int long long
#define fio() ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL)
#define FOR for(int i=1;i<=n;i++)
#define mid ((start+end)/2)
#define ort ((bas+son)/2)
#define _ << " " <<

const lo inf = 1000000000000000000;
const lo li = 2050;
const lo mod = 1000000007;

int n,m,a[li][li],k,flag,t,p[li],l[li],r[li];
int cev;
string s;
vector<int> v;
map<pair<int,int>,int> dp;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());

inline int dfs(int node,int start,int end,int mask){
	if(start+1==end){return a[start][end];}
	int cevv=inf;
	if(dp.find({node,mask})!=dp.end())return dp[{node,mask}];
	for(int i=start;i<=mid;i++){
		if(mask&(1<<i))continue;
		for(int j=mid+1;j<=end;j++){
			if(mask&(1<<j))continue;
			cevv=min(cevv,dfs(node*2,start,mid,mask|(1<<i))+dfs(node*2+1,mid+1,end,mask|(1<<j))+a[i][j]);
		}
	}
	return dp[{node,mask}]=cevv;
}

int32_t main(void){
	fio();
	cin>>n;
	FOR{
		for(int j=1;j<=n;j++)cin>>a[i][j];
	}
	cout<<dfs(1,1,n,0)<<endl;
	//~ cout<<cev<<endl;
	return 0;
}

• Subtask 1: 10 / 10
• Subtask 2: 0 / 17
• Subtask 3: 0 / 32
• Subtask 4: 0 / 41