oj.uz

Submission #701397

# Submission time Handle Problem Language Result Execution time Memory
701397 2023-02-21T07:32:08 Z PixelCat Sateliti (COCI20_satellti) C++14
50 / 110
 3000 ms 19148 KB 
/* nya */
#include <bits/stdc++.h>
#define For(i, a, b) for (int i = a; i <= b; i++)
#define Forr(i, a, b) for (int i = a; i >= b; i--)
#define Fors(i, a, b, s) for (int i = a; i <= b; i += s)
#define F first
#define S second
#define all(x) x.begin(), x.end()
#define sz(x) ((int)x.size())
#define eb emplace_back
// #define int long long
#define INF (int)(1e18)
#define MOD (int)(1000000007)
// #define MOD (int)(998244353)
using namespace std;
using LL = long long;
using LLL = __int128_t;
using pii = pair<int, int>;

#ifdef NYAOWO
#include "library/debug.hpp"
inline void USACO(const string &s) {
    cerr << "USACO: " << s << "\n";
}
#else
#define debug(...)
inline void timer() {}
inline void USACO(const string &s) {
    freopen((s + ".in").c_str(), "r", stdin);
    freopen((s + ".out").c_str(), "w", stdout);
}
#endif

const int MAXN = 1024;

pii i2p(int id) {
    return pii(id >> 10, id & 1023);
}
int p2i(int a, int b) {
    return (a << 10) | b;
}

int n, m;
char g[MAXN][MAXN];
int val[MAXN][MAXN];

int sa[MAXN * MAXN];
int rk[MAXN * MAXN];
int tmp[MAXN * MAXN];

void getSA(function<int(int, int)> nxt) {
    int nm = n * m;
    int *r = rk;
    int *r2 = tmp;
    For(i, 0, n - 1) For(j, 0, m - 1) {
        sa[i * m + j] = p2i(i, j);
        r[p2i(i, j)] = val[i][j];
    }
    for(int len = 1; len < 1024; len <<= 1) {
        auto cmp = [&](int a, int b) {
            if(r[a] != r[b]) return r[a] < r[b];
            a = nxt(a, len); b = nxt(b, len);
            return r[a] < r[b];
        };
        sort(sa, sa + nm, cmp);
        r2[sa[0]] = 0;
        For(i, 1, nm - 1) r2[sa[i]] = r2[sa[i - 1]] + cmp(sa[i - 1], sa[i]);
        swap(r, r2);
    }
    if(r != rk) {
        For(i, 0, nm - 1) rk[i] = tmp[i];
    }
}

int nxt1(int id, int len) {
    pii p = i2p(id);
    return p2i(p.F, (p.S + len) % m);
}
int nxt2(int id, int len) {
    pii p = i2p(id);
    return p2i((p.F + len) % n, p.S);
}

int32_t main() {
    ios::sync_with_stdio(false);
    cin.tie(0);
    // OAO
    cin >> n >> m;
    For(i, 0, n - 1) For(j, 0, m - 1) {
        char ch; cin >> ch;
        val[i][j] = (ch == '.');
        g[i][j] = ch;
    }
    getSA(nxt1);
    For(i, 0, n - 1) For(j, 0, m - 1) {
        auto id = p2i(i, j);
        val[i][j] = rk[id];
    }
    getSA(nxt2);
    auto p = i2p(sa[0]);
    int x = p.F, y = p.S;
    For(i, 0, n - 1) {
        For(j, 0, m - 1) cout << g[(x + i) % n][(y + j) % m];
        cout << "\n";
    }
    return 0;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 980 KB Output is correct
2 Correct 3 ms 852 KB Output is correct
3 Correct 3 ms 956 KB Output is correct
4 Correct 5 ms 852 KB Output is correct
5 Correct 3 ms 968 KB Output is correct
6 Correct 3 ms 980 KB Output is correct
7 Correct 5 ms 968 KB Output is correct

Subtask #2
40.0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 980 KB Output is correct
2 Correct 3 ms 852 KB Output is correct
3 Correct 3 ms 956 KB Output is correct
4 Correct 5 ms 852 KB Output is correct
5 Correct 3 ms 968 KB Output is correct
6 Correct 3 ms 980 KB Output is correct
7 Correct 5 ms 968 KB Output is correct
8 Correct 137 ms 4540 KB Output is correct
9 Correct 4 ms 468 KB Output is correct
10 Correct 3 ms 4180 KB Output is correct
11 Correct 240 ms 4544 KB Output is correct
12 Correct 216 ms 4672 KB Output is correct
13 Correct 244 ms 4688 KB Output is correct
14 Correct 218 ms 4696 KB Output is correct
15 Correct 184 ms 4704 KB Output is correct
16 Correct 183 ms 4684 KB Output is correct
17 Correct 239 ms 4784 KB Output is correct

Subtask #3
0 / 60.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 980 KB Output is correct
2 Correct 3 ms 852 KB Output is correct
3 Correct 3 ms 956 KB Output is correct
4 Correct 5 ms 852 KB Output is correct
5 Correct 3 ms 968 KB Output is correct
6 Correct 3 ms 980 KB Output is correct
7 Correct 5 ms 968 KB Output is correct
8 Correct 137 ms 4540 KB Output is correct
9 Correct 4 ms 468 KB Output is correct
10 Correct 3 ms 4180 KB Output is correct
11 Correct 240 ms 4544 KB Output is correct
12 Correct 216 ms 4672 KB Output is correct
13 Correct 244 ms 4688 KB Output is correct
14 Correct 218 ms 4696 KB Output is correct
15 Correct 184 ms 4704 KB Output is correct
16 Correct 183 ms 4684 KB Output is correct
17 Correct 239 ms 4784 KB Output is correct
18 Correct 2106 ms 19112 KB Output is correct
19 Correct 29 ms 13400 KB Output is correct
20 Correct 25 ms 692 KB Output is correct
21 Execution timed out 3076 ms 19148 KB Time limit exceeded
22 Halted 0 ms 0 KB -