QOJ.ac

QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#816014#1127. Virus Experiment_8_8_0 636ms56128kbC++235.0kb2024-12-15 20:53:332024-12-15 20:53:39

Judging History

This is the latest submission verdict.

  • [2024-12-15 20:53:39]
  • Judged
  • Verdict: 0
  • Time: 636ms
  • Memory: 56128kb
  • [2024-12-15 20:53:33]
  • Submitted

answer

#include <bits/stdc++.h>
    
using namespace std;
    
typedef long long ll;

const int  N = (int)1e6 + 12, MOD = 998244353, maxn = 805;

const int dx[] = {1, 0, -1, 0}, dy[] = {0, 1, 0, -1};
int n, r, c, u[maxn][maxn], mx = 0, e[N], pr[N], comp[N];
string s;
int o;
int conv(int x, int y) {
    return (x - 1) * c + y;
}
bool bl[N], w[N][16], is[N];
pair<int, int> ob[N];
void prec() {
    cin >> s;
    for(int i = 1; i <= r; i++) {
        for(int j = 1; j <= c; j++) {
            cin >> u[i][j];
            if(!u[i][j]) {
                u[i][j] = (int)1e9;
                bl[conv(i, j)] = 1;
            }
            ob[conv(i, j)] = {i, j};
        }
    }
    for(int i = 0; i < n; i++) {
        if(s[i] == 'N') {
            e[i] = 0;
        } else if(s[i] == 'S') {
            e[i] = 2;
        } else if(s[i] == 'E') {
            e[i] = 3;
        } else {
            e[i] = 1;
        }
    }
    for(int i = 1; i < (1 << 4); i++) {
        vector<int> f;
        for(int j = 0; j < n; j++) {
            if(!((i >> e[j]) & 1)) f.push_back(j);
        }
        int mx = 0;
        if(f.empty()) { 
            mx = (int)1e6;
        } else {
            mx = f[0] + (n - 1 - f.back());
            for(int l = 1; l < (int)f.size(); l++) {
                mx = max(mx, f[l] - f[l - 1] - 1);
            }
        }
        for(int x = 1; x <= r; x++) {
            for(int y = 1; y <= c; y++) {
                if(u[x][y] > mx) continue;
                bool ok = 1;
                if(x == r || x == 1 || y == 1 || y == c) {
                    for(int j = 0; j < 4; j++) {
                        if((i >> j) & 1) {
                            int kx = x - dx[j], ky = y - dy[j];
                            if(kx >= 1 && kx <= r && ky >= 1 && ky <= c) {
                            } else {
                                ok = 0;
                                break;
                            }
                        }
                    }
                }
                if(!ok) continue;
                w[conv(x, y)][i] = 1;
            }
        }
    }
    n = r * c;
    for(int i = 1; i <= n; ++i) {
        pr[i] = comp[i] = i;
    }
}
inline bool in(int x, int y) {
    return (x >= 1 && x <= r && y >= 1 && y <= c);
}
int msk[N], us[N], timer;
pair<int, int> bfs(int j) {
    timer++;
    queue<int> q;
    us[j] = timer;
    q.push(j);
    vector<int> sn;
    while(!q.empty()) {
        int v = q.front();
        q.pop();
        auto [x, y] = ob[v];
        for(int i = 0; i < 4; i++) {
            int kx = x + dx[i], ky = y + dy[i];
            if(in(kx, ky)) {
                int to = conv(kx, ky);
                if(us[to] == timer) continue;
                if(!msk[to]) {
                    sn.push_back(to);
                }
                msk[to] |= (1 << i);
                if(w[to][msk[to]]) {
                    if(pr[to] == comp[j]) {
                        us[to] = timer;
                        comp[to] = comp[v];
                        q.push(to);
                    } else {
                        for(int f : sn) {
                            msk[f] = 0;
                        }
                        return {comp[j], pr[to]};
                    }
                }
            }
        }
    }
    for(int f : sn) {
        msk[f] = 0;
    }
    return {-1, -1};
}
int vis[N], P[N];
pair<int, int> ed[N];
int get(int v) {
    if(P[v] == v) return v;
    return P[v] = get(P[v]);
}
void merge(int v, int u) {
    v = get(v);
    u = get(u);
    P[v] = u;
}
int col[N];
void test() {
    cin >> n >> r >> c;
    prec();
    for(int i = 0; i < 20; i++) {
        for(int j = 1; j <= n; j++) {
            P[j] = j;
        }
        int it = 0;
        for(int j = 1; j <= n; ++j) {
            if(bl[j]) continue;
            if(vis[comp[j]] != i + 1 && pr[j] == comp[j]) {
                auto [x, y] = bfs(j);
                if(x != -1) {
                    ed[it++] = {x, y};
                }
            }
        }
        for(int j = 0; j < it; j++) {
            merge(ed[j].first, ed[j].second);
        }
        for(int j = 1; j <= n; j++) {
            pr[j] = get(pr[j]);
        }
        // cout << "___________________\n";
    }

    for(int j = 1; j <= n; j++) {
        if(bl[j]) continue;
        // cout << j << ' ' << pr[j] << ' ' << comp[j] << '\n';
        if(pr[j] == comp[j]) {
            col[pr[j]]++;
        }
    }
    vector<int> x;
    for(int i = 1; i <= n; i++) {
        if(col[i]) {
            x.push_back(col[i]);
        }
    }
    sort(x.begin(), x.end());
    int res = 0;
    for(int i = 0; i < (int)x.size() && x[i] == x[0]; i++) {
        res += x[i];
    }
    cout << x[0] << '\n' << res << '\n';
}

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    o = clock();
    int t = 1;
    // cin >> t;

    while(t--) {
        test();
    }
    // cout << (clock() - o) * 1.0 / CLOCKS_PER_SEC;
}   

Details

Tip: Click on the bar to expand more detailed information

Subtask #1:

score: 0
Time Limit Exceeded

Test #1:

score: 14
Accepted
time: 0ms
memory: 22348kb

input:

53768 10 50
EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE...

output:

1
10

result:

ok 2 lines

Test #2:

score: 14
Accepted
time: 636ms
memory: 54900kb

input:

10 800 800
WWWWEWWEWW
7 3 7 5 10 6 9 6 5 8 1 10 1 6 6 1 8 9 3 7 1 3 1 4 9 3 4 2 5 4 5 7 8 10 4 6 2 8 7 2 1 5 3 10 9 10 1 7 6 2 1 8 3 4 10 5 3 3 3 9 2 2 6 1 6 5 6 3 7 9 7 5 8 5 4 3 7 6 9 3 4 9 1 2 7 1 3 4 6 10 8 4 4 9 1 2 6 1 4 4 10 6 10 4 1 5 1 8 5 2 1 9 4 10 9 2 7 9 4 1 6 5 1 6 6 10 10 1 3 10 6 4 8...

output:

1
230450

result:

ok 2 lines

Test #3:

score: 14
Accepted
time: 97ms
memory: 54920kb

input:

10 800 800
WWWWWWWWWW
15314 11896 14475 25269 31478 32227 37443 24837 1353 32232 8163 3206 34713 17755 6870 20331 29572 19341 12557 36054 14768 990 30502 32464 15439 17070 15514 32216 37546 25514 27706 3028 26652 17247 13171 40866 36133 9550 22005 24048 33764 25331 12936 27462 27217 33096 19096 3919...

output:

1
800

result:

ok 2 lines

Test #4:

score: 14
Accepted
time: 103ms
memory: 56128kb

input:

31 800 800
EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1...

output:

1
800

result:

ok 2 lines

Test #5:

score: 0
Time Limit Exceeded

input:

9999 800 800
WWWEEWEEWEWEEEWEEEWWWEWWEEEEEWEEEWWEWWWEWEWEWEEEWWWWWEWEEEEEEWEEWWEWWEEEEWEWWEWWWEEEWWEEWEWWWEWWEWWEEEWWWEWEEWWEWEWWWEWWWEEEWWEEEWWEEEWWWWEWWEWEWWWWEEWEEEWEWWEWEEWEWEEEWEWEEEWWWWEEEEWWWWWWEWWWEWEWWWEWEWWWEWWEEEEWWEEEEEWEWEWWWEWEEEEWEEEEWEEWEEEEEWEWWEEEWWEEEWEEEEWWEWWEEWEEWEWWEWWWEWEEEWE...

output:


result:


Subtask #2:

score: 0
Time Limit Exceeded

Test #9:

score: 6
Accepted
time: 0ms
memory: 24156kb

input:

10 10 10
NNNNSENESS
3 2 0 0 1 3 2 3 1 2
3 3 2 0 5 2 4 0 5 1
5 1 2 3 0 4 4 0 1 0
5 0 1 0 2 4 2 2 0 3
0 1 0 1 4 0 1 4 1 0
3 5 5 0 2 5 3 0 3 4
5 3 1 0 5 4 4 0 4 4
1 0 2 0 5 4 0 2 3 0
4 2 0 2 3 0 2 5 5 4
3 0 2 0 5 4 5 4 0 5

output:

1
33

result:

ok 2 lines

Test #10:

score: 6
Accepted
time: 0ms
memory: 22452kb

input:

100000 10 10
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN...

output:

1
10

result:

ok 2 lines

Test #11:

score: 6
Accepted
time: 3ms
memory: 24780kb

input:

100000 11 11
SWNESSSWNSEWNSNESSNWEWEWNSNNSWSSWSEEWNENWSWNNEWWSWNSESSEWENNESSENEEEESEESEWENEWSNSNNSSNNSWSNNSNESWEWSENNSESEEWWNESSNNWWSNWNNWNWNWWSEENNNWESSWNWNSEWWNWNNWSWSEWSENSNWNWNNEESSSENWWESSWEESWWENSSENWNNEESWENWSSSWEEWNWEWNNENNWSWEWSNNEESESNWNSEEENWWESSWEEWWSWESSNNEEWWNSSWSNEWSENSNNSENNSSNSSEEEE...

output:

27
27

result:

ok 2 lines

Test #12:

score: 6
Accepted
time: 0ms
memory: 26480kb

input:

100000 10 10
EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE...

output:

1
16

result:

ok 2 lines

Test #13:

score: 6
Accepted
time: 3ms
memory: 18616kb

input:

100000 1 1
WWSSSWEEEEESSNSSSSENWSESSNSWWSWESWSEEWSNSSEESSWESNNNENENWEENSSSSSNENESEESEWWSNNWSEWSWNWESSWNWSEESNSWSWENWEWNWESEWSSNSWENEWNNSWEEWWSSSWNSNWWWNSSWSSNSENESENNNENWESSENNEWENWEENWNWSSSWWWSNWESWEESNNNESNNEESNEWSSNNSSWSSESNSNNWENENEWWWSEESNWEWWNWNNSSNEEWSWNSWEESNSNSNEWNNWWWWSSWSWWESWWENSENWNWNWN...

output:

1
1

result:

ok 2 lines

Test #14:

score: 0
Time Limit Exceeded

input:

100000 50 50
ENWNNWEESNSNSSESSWNEWWESNWEENNEEWWEWNNESSSEWSWNWEWSSNEEWNSEWSSWNESWSWESEWWSENEWESEWSWSNNWWESSSWSSSESESNSSNESSSWSNWSSSENSWWNWNWNNNSNSNSEENWESENEENNESENSENNWEEESENWSESWSNWNNNSNSNWWENWEEEWSNWWEWSWNSEEEWEWWNSWNNNWWENSNSWWSNNWESNSSSWWNSEWSNWNEEESSEWEESENEESWSNNWSNESEESWEESNWSEEWWSSWESENESSSE...

output:


result:


Subtask #3:

score: 0
Skipped

Dependency #1:

0%