Submission #1102082

#	Time	Username	Problem	Language	Result	Execution time	Memory
1102082		yoav_s	Viruses (BOI20_viruses)	C++17	11 / 100	1 ms	504 KiB

Viruses

#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef vector<ll> v;
typedef vector<v> vv;
typedef vector<vv> vvv;
typedef pair<ll, ll> p;
typedef vector<p> vp;
typedef vector<vp> vvp;
typedef vector<vvp> vvvp;
typedef pair<ll, p> tri;
typedef vector<tri> vtri;
typedef vector<vtri> vvtri;
typedef vector<vvtri> vvvtri;
typedef vector<bool> vb;
typedef vector<vb> vvb;
typedef vector<vvb> vvvb;

#define f first
#define s second
#define pb push_back
#define eb emplace_back
#define all(v) (v).begin(),(v).end()

const ll INF = 1e18;
const ll mod = 1e9 + 7;

int main()
{
    ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);
    ll G, N, M;
    cin >> G >> N >> M;
    vvv mutations(G);
    for (ll i = 0; i < N; i++)
    {
        ll a, k;
        cin >> a >> k;
        v line(k);
        for (ll i = 0; i < k; i++) cin >> line[i];
        mutations[a].pb(line);
    }
    vvb antibodies(M);
    for (ll i = 0; i < M; i++)
    {
        ll l;
        cin >> l;
        antibodies[i].resize(l);
        for (ll j=  0; j < l; j++)
        {
            ll x; cin >> x; antibodies[i][j] = x;
        }
    }
    v minSize(G, INF); minSize[0] = minSize[1] = 1;
    ll iterations = G;
    while (iterations--)
    {
        for (ll i = 0; i < G; i++)
        {
            for (ll j = 0; j < mutations[i].size(); j++)
            {
                ll sum = 0;
                for (ll x : mutations[i][j])
                {
                    if (minSize[x] == INF)
                    {
                        sum = INF; break;
                    }
                    sum += minSize[x];
                }
                minSize[i] = min(minSize[i], sum);
            }
        }
    }
    for (ll i = 2; i < G; i++)
    {
        if (minSize[i] == INF) cout << "YES\n";
        else
        {
            cout << "NO " << minSize[i] << "\n";
        }
    }
    return 0;
}

Compilation message (stderr)

Viruses.cpp: In function 'int main()':
Viruses.cpp:61:30: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<std::vector<long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   61 |             for (ll j = 0; j < mutations[i].size(); j++)
      |                            ~~^~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 11 / 11
• Subtask 2: 0 / 14
• Subtask 3: 0 / 25
• Subtask 4: 0 / 32
• Subtask 5: 0 / 18