Submission #1277386

#	Time	Username	Problem	Language	Result	Execution time	Memory
1277386		dosts	Netrpeljivost (COI23_netrpeljivost)	C++20	100 / 100	388 ms	67420 KiB

Main

#include <bits/stdc++.h>
#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx2")
#define int long long
#define pii pair<int,int>
#define vi vector<int>
#define ff first
#define ss second
#define sp << " " <<
#define all(x) x.begin(),x.end()
#define big(x) ((int)(x.size()))
using namespace std;
const int MOD = 1e9+7, LIM = 1e6+1, inf = 2e18;

const int N = (1LL<<11);

void solve() {
    int n;
    cin >> n;
    int dp[n+1][n+1],f[n][n];
    for (int i = 0;i<=n;i++) {
        for (int j = 0;j<n;j++) {
            dp[i][j] = inf;
            if (i<n) cin >> f[i][j];
            if (i == 1) dp[1][j] = 0;
        }
    }
    vi lgs(n+1,0);
    for (int i=2;i<=n;i++) lgs[i] = lgs[i>>1]+1;
    for (int i = 1;i<=n;i++) {
        for (int j = 0;j<n;j++) {
            if (dp[i][j] == inf) continue;
            if (i == n) continue;
            int len = lgs[(i-1)^i];
            //j ile farklı lenli ama aynı >lenli
            int oth = j^(1<<len);
            oth >>= len;
            oth <<= len;
            for (int t = oth;t<oth+(1<<len);t++) {
                dp[i+1][t] = min(dp[i+1][t],dp[i][j]+f[j][t]);
            }
        }
    }
    int ans = inf;
    for (int i = 0;i<n;i++) ans = min(ans,dp[n][i]);
    cout << ans << '\n';
} 

signed main() {
    ios_base::sync_with_stdio(0); cin.tie(0);
    #ifdef Dodi
    freopen("in.txt", "r", stdin);
    freopen("out.txt", "w", stdout);
    #endif
    int t = 1;
    //cin >> t;
    while (t --> 0) solve();
}

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