Submission #1101011

#	Time	Username	Problem	Language	Result	Execution time	Memory
1101011		trie	Kronican (COCI16_kronican)	C++17	100 / 100	579 ms	4604 KiB

kronican

#include<bits/stdc++.h>
#define mp make_pair
#define fi first
#define se second
#define ii pair<int, int>
#define iii pair<ii, int>
#define ll long long
#define pb push_back
#define pli pair<ll, int>
#define all(v) (v).begin(), (v).end()
#define uniquev(v) sort(all(v)), (v).resize(unique(all(v)) - (v).begin())
#define cntbit(mask) __builtin_popcount(mask)
#define getbit(x, i) ((x >> i) & 1)
#define MASK(i) (1 << i)
#define pli pair<ll, int>
using namespace std;

template<class T1, class T2>
bool maximize(T1 &a, T2 b){if(a < b){a = b; return 1;} return 0;}

template<class T1, class T2>
bool minimize(T1 &a, T2 b){if(a > b){a = b; return 1;} return 0;}

const int N = 1e2 + 5;
const int V = 1e4 + 5;
const int MOD = 111539786;

int n, a[N][N], k, dp[MASK(20)];

void add(int &x, int y) {
    x += y;
    if (x >= MOD) x -= MOD;
}

void solve() {
    cin >> n >> k;
    for(int i = 0 ; i < n ; i++) for(int j = 0 ; j < n ; j++) cin >> a[i][j];
    memset(dp, 0x3f, sizeof dp);
    dp[MASK(n) - 1] = 0;
    for(int mask = MASK(n) - 1 ; mask >= 0 ; mask--) {
        for(int i = 0 ; i < n ; i++)
            if (getbit(mask, i))
                for(int j = 0 ; j < n ; j++)
                    if (getbit(mask, j) && i != j)
                        minimize(dp[mask ^ MASK(i)], dp[mask] + a[i][j]);
    }
    int ans = 1e9;
    for(int mask = 1 ; mask < MASK(n) ; mask++)
        if (cntbit(mask) <= k) minimize(ans, dp[mask]);
    cout << ans;
}

int main(void) {
    //freopen("task.inp", "r", stdin);
    //freopen("task.out", "w", stdout);
	ios_base::sync_with_stdio(false);
	cin.tie(0); cout.tie(0);
    int t = 1; while(t--) solve();
    return 0;
}

• Subtask 1: 100 / 100