Submission #743096

#	Time	Username	Problem	Language	Result	Execution time	Memory
743096		maomao90	Viruses (BOI20_viruses)	C++17	0 / 100	1 ms	340 KiB

Viruses

// Hallelujah, praise the one who set me free
// Hallelujah, death has lost its grip on me
// You have broken every chain, There's salvation in your name
// Jesus Christ, my living hope
#include <bits/stdc++.h> 
using namespace std;

#define REP(i, s, e) for (int i = (s); i < (e); i++)
#define RREP(i, s, e) for (int i = (s); i >= (e); i--)
template <class T>
inline bool mnto(T& a, T b) {return a > b ? a = b, 1 : 0;}
template <class T>
inline bool mxto(T& a, T b) {return a < b ? a = b, 1: 0;}
typedef long long ll;
typedef long double ld;
#define FI first
#define SE second
typedef pair<int, int> ii;
typedef pair<ll, ll> pll;
typedef tuple<int, int, int> iii;
#define ALL(_a) _a.begin(), _a.end()
#define SZ(_a) (int) _a.size()
#define pb push_back
typedef vector<int> vi;
typedef vector<ll> vll;
typedef vector<ii> vii;
typedef vector<iii> viii;

#ifndef DEBUG
#define cerr if (0) cerr
#endif

const int INF = 1000000005;
const ll LINF = 1000000000000000005ll;
const int MAXN = 105;
const int MAXM = 55;

int g, n, m;
int a[MAXN], k[MAXN];
int b[MAXN][MAXN];
int l[MAXM];
int c[MAXM][MAXM];

namespace st1 {
    ll d[MAXN];
    void main() {
        d[0] = d[1] = 1;
        REP (i, 2, g) {
            d[i] = LINF;
        }
        REP (z, 0, 2 * n) {
            //bool gd = 0;
            REP (i, 0, n) {
                ll sm = 0;
                REP (j, 0, k[i]) {
                    sm += d[b[i][j]];
                    mnto(sm, LINF);
                }
                if (mnto(d[a[i]], sm)) {
                    //gd = 1;
                }
            }
            //if (!gd) {
                //break;
            //}
        }
        REP (i, 2, g) {
            cout << "NO " << d[i] << '\n';
        }
    }
}

int main() {
#ifndef DEBUG
    ios::sync_with_stdio(0), cin.tie(0);
#endif
    cin >> g >> n >> m;
    REP (i, 0, n) {
        cin >> a[i] >> k[i];
        REP (j, 0, k[i]) {
            cin >> b[i][j];
        }
    }
    REP (i, 0, m) {
        cin >> l[i];
        REP (j, 0, l[i]) {
            cin >> c[i][j];
        }
    }
    if (m == 0) {
        st1::main();
        return 0;
    }
}

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