oj.uz

Submission #669573

# Submission time Handle Problem Language Result Execution time Memory
669573 2022-12-06T18:58:54 Z Dec0Dedd The Kingdom of JOIOI (JOI17_joioi) C++14
60 / 100
 488 ms 46544 KB 
#include <bits/stdc++.h>

using namespace std;

#define sh short

const int N = 2e3+110;
const int INF = 1e9;

int a[N][N], cnt[N], h, w;
vector<int> v;

void fs(int &number) {
    register int c;
    number = 0;
    c = getchar();
    for (; (c>47 && c<58); c=getchar()) number = number *10 + c - 48;
}

bool cmp(sh x, sh y) {
    return a[cnt[x]+1][x] > a[cnt[y]+1][y];
}

int solve() {
    memset(cnt, 0, sizeof(cnt));

    int res=INF, lis=INF, uis=-1;
    multiset<int> js;

    for (int i=1; i<=h; ++i) {
        for (int j=1; j<=w; ++j) js.insert(a[i][j]); 
    }

    priority_queue<sh, vector<sh>, function<bool(sh, sh)>> pq(cmp);
    pq.push(w);

    for (int k=0; k<(int)v.size(); ++k) {
        while (!pq.empty()) {
            if (a[cnt[pq.top()]+1][pq.top()] <= v[k]) {
                sh x=pq.top(); pq.pop();
                int val=a[cnt[x]+1][x];
                js.erase(js.find(val));
                lis=min(lis, val), uis=max(uis, val);

                ++cnt[x];
                if (cnt[x] == h) continue;
                if (x == w || cnt[x+1] >= cnt[x]+1) pq.push(x);

                if (x == 1) continue;
                if (cnt[x] == cnt[x-1]+1) pq.push(x-1);
            } else break;
        }

        int lf;
        if (js.empty()) lf=INF;
        else lf=(*js.rbegin())-(*js.begin());

        res=min(res, max(lf, uis-lis));
    }

    return res;
}

void hor() {
    for (int i=1; i<h/2+1; ++i) {
        for (int j=1; j<=w; ++j) swap(a[i][j], a[h-i+1][j]);
    }
}

void ver() {
    for (int i=1; i<=h; ++i) {
        for (int j=1; j<w/2+1; ++j) swap(a[i][j], a[i][w-j+1]);
    }
}

int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(NULL);
    cout.tie(NULL);
    fs(h), fs(w);

    priority_queue<sh, vector<sh>, function<bool(sh, sh)>> pq(cmp);
    for (int i=1; i<=h; ++i) {
        for (int j=1; j<=w; ++j) {
            fs(a[i][j]);
            v.push_back(a[i][j]);
            pq.push(i);
        }
    } sort(v.begin(), v.end());
    v.erase(unique(v.begin(), v.end()), v.end());

    if (h >= 1e3) {
        cout<<-1<<"\n";
        return 0;
    }

    int ans=solve();
    hor(); ans=min(ans, solve()); hor();

    ver();
    ans=min(ans, solve());
    hor(); ans=min(ans, solve()); hor();
    printf("%d\n", ans);
}

Subtask #1
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct

Subtask #2
45.0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 3 ms 468 KB Output is correct
16 Correct 55 ms 3284 KB Output is correct
17 Correct 76 ms 3464 KB Output is correct
18 Correct 71 ms 3412 KB Output is correct
19 Correct 77 ms 3412 KB Output is correct
20 Correct 69 ms 3028 KB Output is correct
21 Correct 76 ms 3412 KB Output is correct
22 Correct 74 ms 3412 KB Output is correct
23 Correct 75 ms 3452 KB Output is correct
24 Correct 65 ms 3128 KB Output is correct
25 Correct 76 ms 3456 KB Output is correct
26 Correct 81 ms 3412 KB Output is correct
27 Correct 76 ms 3412 KB Output is correct
28 Correct 77 ms 3412 KB Output is correct

Subtask #3
0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 3 ms 468 KB Output is correct
16 Correct 55 ms 3284 KB Output is correct
17 Correct 76 ms 3464 KB Output is correct
18 Correct 71 ms 3412 KB Output is correct
19 Correct 77 ms 3412 KB Output is correct
20 Correct 69 ms 3028 KB Output is correct
21 Correct 76 ms 3412 KB Output is correct
22 Correct 74 ms 3412 KB Output is correct
23 Correct 75 ms 3452 KB Output is correct
24 Correct 65 ms 3128 KB Output is correct
25 Correct 76 ms 3456 KB Output is correct
26 Correct 81 ms 3412 KB Output is correct
27 Correct 76 ms 3412 KB Output is correct
28 Correct 77 ms 3412 KB Output is correct
29 Incorrect 488 ms 46544 KB Output isn't correct
30 Halted 0 ms 0 KB -