Submission #914045

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
914045	2024-01-20T22:57:25 Z	vjudge1	Burza (COCI16_burza)	C++17	160 / 160	501 ms	1780 KB

burza

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

const int MAXN = 405, MAXK = 20, INF = 1e18;
int n, k, cnt, dep[MAXN], mn[MAXN], mx[MAXN], dp[1<<MAXK];
vector<int> adj[MAXN];

void dfs(int x, int p, int d) {
    dep[x] = d;
    if(d==k){
        cnt++;
        mn[x] = mx[x] = cnt;
        return;
    }
    for(int y : adj[x]) {
        if(y==p) continue;
        dfs(y, x, d + 1);
        mn[x] = min(mn[x], mn[y]);
        mx[x] = max(mx[x], mx[y]);
    }
}

signed main() {
    cin.tie(NULL)->sync_with_stdio(0);
    cin>>n>>k;
    if(k>20) {
        cout << "DA\n";
        return 0;
    }
    for(int i = 1; i < n; i++) {
        int x, y;
        cin>>x>>y;
        adj[x].push_back(y);
        adj[y].push_back(x);
    }
    for(int i = 1; i <= n; i++) {
        mn[i] = INF;
    }
    dfs(1, 0, 0);
    for(int i= 1; i < (1<<k);i++) {
        for(int j = 0;j < k; j++) {
            if((i>>j)&1) {
                int pr = dp[i^(1<<j)];
                for(int  l= 1; l <= n; l++) {
                    if(dep[l]!=j+1)continue;
                    int cmn = mn[l], cmx = mx[l];
                    if(cmn <= pr + 1) {
                        dp[i] = max(dp[i], cmx);
                    }
                }
            }
        }
    }
    for(int i = 1; i < (1<<k); i++) {
        if(dp[i] >= cnt) {
            int counter = 0;
            for(int j = 0; j < k; j++) {
                if((i>>j)&1) counter++;
            }
            if(counter<=k) {
                cout << "DA\n";
                return 0;
            }
        }
    }
    cout << "NE\n";
}

Subtask #1
16.0 / 16.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	40 ms	592 KB	Output is correct
2	Correct	478 ms	1364 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	1 ms	348 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct

Subtask #2
16.0 / 16.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	441 ms	1380 KB	Output is correct
2	Correct	445 ms	1780 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	440 ms	1368 KB	Output is correct
6	Correct	1 ms	344 KB	Output is correct

Subtask #3
16.0 / 16.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	456 ms	1548 KB	Output is correct
2	Correct	450 ms	1368 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	1 ms	344 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct

Subtask #4
16.0 / 16.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	96 ms	632 KB	Output is correct
2	Correct	462 ms	1380 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	1 ms	600 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct

Subtask #5
16.0 / 16.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	429 ms	1392 KB	Output is correct
2	Correct	501 ms	1440 KB	Output is correct
3	Correct	0 ms	344 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	1 ms	348 KB	Output is correct
6	Correct	1 ms	348 KB	Output is correct

Subtask #6
16.0 / 16.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	450 ms	1460 KB	Output is correct
2	Correct	455 ms	1528 KB	Output is correct
3	Correct	1 ms	532 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	1 ms	348 KB	Output is correct

Subtask #7
16.0 / 16.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	445 ms	1348 KB	Output is correct
2	Correct	442 ms	1360 KB	Output is correct
3	Correct	1 ms	344 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	443 ms	1312 KB	Output is correct
6	Correct	1 ms	348 KB	Output is correct

Subtask #8
16.0 / 16.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	88 ms	548 KB	Output is correct
2	Correct	459 ms	1488 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	1 ms	348 KB	Output is correct
6	Correct	1 ms	348 KB	Output is correct

Subtask #9
16.0 / 16.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	34 ms	604 KB	Output is correct
2	Correct	486 ms	1368 KB	Output is correct
3	Correct	1 ms	344 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	1 ms	348 KB	Output is correct
6	Correct	1 ms	348 KB	Output is correct

Subtask #10
16.0 / 16.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	187 ms	848 KB	Output is correct
2	Correct	456 ms	1376 KB	Output is correct
3	Correct	1 ms	344 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	194 ms	1048 KB	Output is correct
6	Correct	0 ms	344 KB	Output is correct

Submission #914045

Compilation message