oj.uz

Submission #669569

# Submission time Handle Problem Language Result Execution time Memory
669569 2022-12-06T18:46:08 Z Dec0Dedd The Kingdom of JOIOI (JOI17_joioi) C++14
60 / 100
 4000 ms 180632 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);

    for (int i=1; i<=h; ++i) {
        for (int j=1; j<=w; ++j) {
            fs(a[i][j]);
            v.push_back(a[i][j]);
        }
    } sort(v.begin(), v.end());
    v.erase(unique(v.begin(), v.end()), v.end());

    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 1 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 0 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 0 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 0 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 1 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 0 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 0 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 0 ms 340 KB Output is correct
15 Correct 3 ms 468 KB Output is correct
16 Correct 53 ms 3152 KB Output is correct
17 Correct 79 ms 3268 KB Output is correct
18 Correct 69 ms 3288 KB Output is correct
19 Correct 78 ms 3288 KB Output is correct
20 Correct 64 ms 2904 KB Output is correct
21 Correct 81 ms 3288 KB Output is correct
22 Correct 71 ms 3200 KB Output is correct
23 Correct 79 ms 3252 KB Output is correct
24 Correct 62 ms 2904 KB Output is correct
25 Correct 73 ms 3288 KB Output is correct
26 Correct 81 ms 3288 KB Output is correct
27 Correct 81 ms 3288 KB Output is correct
28 Correct 76 ms 3296 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 1 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 0 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 0 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 0 ms 340 KB Output is correct
15 Correct 3 ms 468 KB Output is correct
16 Correct 53 ms 3152 KB Output is correct
17 Correct 79 ms 3268 KB Output is correct
18 Correct 69 ms 3288 KB Output is correct
19 Correct 78 ms 3288 KB Output is correct
20 Correct 64 ms 2904 KB Output is correct
21 Correct 81 ms 3288 KB Output is correct
22 Correct 71 ms 3200 KB Output is correct
23 Correct 79 ms 3252 KB Output is correct
24 Correct 62 ms 2904 KB Output is correct
25 Correct 73 ms 3288 KB Output is correct
26 Correct 81 ms 3288 KB Output is correct
27 Correct 81 ms 3288 KB Output is correct
28 Correct 76 ms 3296 KB Output is correct
29 Execution timed out 4042 ms 180632 KB Time limit exceeded
30 Halted 0 ms 0 KB -