oj.uz

Submission #682688

# Submission time Handle Problem Language Result Execution time Memory
682688 2023-01-16T19:08:04 Z Lobo Political Development (BOI17_politicaldevelopment) C++17
4 / 100
 7 ms 2132 KB 
#include<bits/stdc++.h>
using namespace std;
const long long inf = (long long) 1e18 + 10;
const int inf1 = (int) 1e9 + 10;
#define int long long
#define dbl long double
#define endl '\n'
#define sc second
#define fr first
#define mp make_pair
#define pb push_back
#define all(x) x.begin(), x.end()
const int maxn = 5e4+10;

int n, k, gr[maxn];
vector<int> g[maxn];

void solve() {
    cin >> n >> k;
    for(int i = 0; i < n; i++) {
        int d; cin >> d; 
        gr[i] = d;
        while(d--) {
            int x; cin >> x;
            g[i].pb(x);
        }
    }

    set<pair<int,int>> st;
    for(int i = 0; i < n; i++) {
        st.insert(mp(gr[i],i));
    }

    int ans = 1;
    for(int j = 0; j <= k; j++) {
        while(st.size() && st.begin()->fr < j) {
            int u = st.begin()->sc;
            st.erase(st.begin());
            for(auto v : g[u]) {
                if(st.count(mp(gr[v],v))) {
                    st.erase(mp(gr[v],v));
                    --gr[v];
                    st.insert(mp(gr[v],v));
                }
            }
        }
        if(st.size()) {
            ans = max(ans, j+1);
        }
    }
    cout << ans << endl;
}

int32_t main() {
    ios::sync_with_stdio(false); cin.tie(0);

    // freopen("in.in", "r", stdin);
    // freopen("out.out", "w", stdout);
    int tt = 1;
    // cin >> tt;
    while(tt--) {
        solve();
    }

}

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1492 KB Output is correct
2 Correct 1 ms 1500 KB Output is correct
3 Correct 7 ms 2016 KB Output is correct
4 Correct 4 ms 2004 KB Output is correct
5 Correct 5 ms 2004 KB Output is correct
6 Correct 6 ms 2132 KB Output is correct
7 Correct 5 ms 2028 KB Output is correct
8 Correct 2 ms 1748 KB Output is correct
9 Correct 1 ms 1492 KB Output is correct
10 Correct 2 ms 1748 KB Output is correct

Subtask #2
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1492 KB Output is correct
2 Correct 1 ms 1500 KB Output is correct
3 Correct 7 ms 2016 KB Output is correct
4 Correct 4 ms 2004 KB Output is correct
5 Correct 5 ms 2004 KB Output is correct
6 Correct 6 ms 2132 KB Output is correct
7 Correct 5 ms 2028 KB Output is correct
8 Correct 2 ms 1748 KB Output is correct
9 Correct 1 ms 1492 KB Output is correct
10 Correct 2 ms 1748 KB Output is correct
11 Correct 4 ms 2024 KB Output is correct
12 Correct 4 ms 2116 KB Output is correct
13 Incorrect 1 ms 1492 KB Output isn't correct
14 Halted 0 ms 0 KB -

Subtask #3
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 1748 KB Output is correct
2 Incorrect 1 ms 1492 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #4
0 / 38.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1492 KB Output is correct
2 Correct 1 ms 1500 KB Output is correct
3 Correct 7 ms 2016 KB Output is correct
4 Correct 4 ms 2004 KB Output is correct
5 Correct 5 ms 2004 KB Output is correct
6 Correct 6 ms 2132 KB Output is correct
7 Correct 5 ms 2028 KB Output is correct
8 Correct 2 ms 1748 KB Output is correct
9 Correct 1 ms 1492 KB Output is correct
10 Correct 2 ms 1748 KB Output is correct
11 Correct 4 ms 2024 KB Output is correct
12 Correct 4 ms 2116 KB Output is correct
13 Incorrect 1 ms 1492 KB Output isn't correct
14 Halted 0 ms 0 KB -

Subtask #5
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1492 KB Output is correct
2 Correct 1 ms 1500 KB Output is correct
3 Correct 7 ms 2016 KB Output is correct
4 Correct 4 ms 2004 KB Output is correct
5 Correct 5 ms 2004 KB Output is correct
6 Correct 6 ms 2132 KB Output is correct
7 Correct 5 ms 2028 KB Output is correct
8 Correct 2 ms 1748 KB Output is correct
9 Correct 1 ms 1492 KB Output is correct
10 Correct 2 ms 1748 KB Output is correct
11 Correct 4 ms 2024 KB Output is correct
12 Correct 4 ms 2116 KB Output is correct
13 Incorrect 1 ms 1492 KB Output isn't correct
14 Halted 0 ms 0 KB -