Submission #858541

#	Time	Username	Problem	Language	Result	Execution time	Memory
858541		jcelin	Netrpeljivost (COI23_netrpeljivost)	C++14	100 / 100	401 ms	107348 KiB

Main

#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef long double ld;

#define ii pair<int,int>
#define pll pair<ll,ll>
#define vi vector<int>
#define vii vector<ii>
#define vll vector<ll>
#define vpll vector<pll>
#define msi multiset<int>
#define si set<int>
#define PB push_back
#define PF push_front
#define PPB pop_back
#define PPF pop_front
#define X first
#define Y second
#define MP make_pair
#define FOR(i, a, b) for (int i = int(a); i < int(b); i++)
#define REP(i, n) FOR(i, 0, n)
#define all(x) (x).begin(), (x).end()

const int mod = 1e9 + 7;
const int MOD = 998244353;
const int inf = mod;
const ll INF = 1e18;
const int MAXN = 2049;
const int logo = 11;
const int off = 1 << logo;
const int trsz = off << 1;
const int dx[] = {1, -1, 0, 0};
const int dy[] = {0, 0, 1, -1};

ll c[MAXN][MAXN], dp[MAXN][MAXN];

void solve(){
	int n;
	cin >> n;
	for(int i=0; i<n; i++){
		for(int j=0; j<n; j++) cin >> c[i][j];
	}
	
	for(int p=1; p<n; p++){
		int sz = p & (-p);
		int psz = sz * 2;
		for(int tr=0; tr<n; tr++){
			int bl = tr / psz * psz;
			int ls = bl + psz - 1;
			int mi = (bl + ls) / 2;
			
			int pr = bl;
			if(tr <= mi){
				pr = mi + 1;
			}
			
			dp[p][tr] = INF;
			for(int k=0; k<sz; k++){
				dp[p][tr] = min(dp[p][tr], dp[p - 1][pr + k] + c[pr + k][tr]);
			}
		}
	}
	
	ll ans = INF;
	for(int i=0; i<n; i++) ans = min(ans, dp[n - 1][i]);
	cout << ans << "\n";
}

int main(){
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	cout.tie(NULL);
	int t = 1;
	//cin >> t;
	while(t--) solve();
	return 0;
}

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