oj.uz

Submission #377539

# Submission time Handle Problem Language Result Execution time Memory
377539 2021-03-14T09:50:46 Z ne4eHbKa Sateliti (COCI20_satellti) C++17
50 / 110
 3000 ms 172396 KB 
#include <bits/stdc++.h>
using namespace std;
#ifndef _LOCAL
//#pragma GCC optimize("O3,Ofast")
#else
#pragma GCC optimize("O0")
#endif
template<typename t> inline void umin(t &a, const t b) {a = min(a, b);}
template<typename t> inline void umax(t &a, const t b) {a = max(a, b);}
typedef pair<int, int> pii;
typedef long long ll;
typedef long double ld;
typedef int8_t byte;
ll time() {return chrono::system_clock().now().time_since_epoch().count();}
mt19937 rnd(time());
#define ft first
#define sd second
#define len(f) int((f).size())
#define bnd(f) (f).begin(), (f).end()
#define _ <<' '<<
const int inf = 1e9 + 5;
const ll inf64 = 4e18 + 5;
const int md = 998244353;
namespace MD {
    void add(int &a, const int b) {if((a += b) >= md) a -= md;}
    void sub(int &a, const int b) {if((a -= b) < 0) a += md;}
    int prod(const int a, const int b) {return ll(a) * b % md;}
};

const int N = 1e3 + 5;
const int NN = 2e3 + 5;
const int K = 4e6 + 5;

int n, m, nn, mm, d;
int a[NN][NN], b[NN][NN], A[NN][NN], z[NN][NN];
int fst[K], lst[K], nxt[K], vl[K], t, e[K], ne;

inline void add(const int &i, const int &j) {
    umax(d, i + 1);
    if(fst[i] < 0) {
        fst[i] = lst[i] = t;
    } else {
        nxt[lst[i]] = t;
        lst[i] = t;
    }
    vl[t++] = j;
}

inline void iterate(const int &i) {
    if(fst[i] < 0) return;
    for(int j = fst[i]; ; j = nxt[j]) {
        e[ne++] = vl[j];
        if(j == lst[i]) {
            fst[i] = -1;
            return;
        }
    }
}

typedef pair<pii, pii> ppp;
ppp f[K]; int nf;

void combine(int a[NN][NN], int b[NN][NN], int c[NN][NN], int dx, int dy) {
    nf = 0;
    for(int i = 0; i + dx < nn; ++i)
        for(int j = 0; j + dy < mm; ++j)
            f[nf++] = {{a[i][j], b[i + dx][j + dy]}, {i, j}};

    d = t = 0;
    for(int i = 0; i < nf; ++i)
        add(f[i].ft.sd, i);
    ne = 0;
    for(int i = 0; i < d; ++i)
        iterate(i);

    d = t = 0;
    for(int i = 0; i < ne; ++i)
        add(f[e[i]].ft.ft, e[i]);
    ne = 0;
    for(int i = 0; i < d; ++i)
        iterate(i);

    int s = 0;

    for(int i = 0; i < nf; ++i) {
        auto &g = f[e[i]];
        if(i && g.ft != f[e[i - 1]].ft)
            ++s;
        c[g.sd.ft][g.sd.sd] = s;
    }

    for(int i = nn - dx; i < nn; ++i)
        for(int j = mm - dy; j < mm; ++j)
            c[i][j] = s + 1;
}

void solve() {
    memset(fst, -1, sizeof fst);
    cin >> n >> m;
    for(int i = 0; i < n + n; ++i) {
        for(int j = 0; j < m + m; ++j) {
            if(i < n && j < m) {
                char c; cin >> c;
                a[i][j] = c == '.';
            } else
                a[i][j] = a[i % n][j % m];
        }
    }
    memset(A, 0, sizeof A);
    memcpy(z, a, sizeof z);
    nn = n << 1;
    mm = m << 1;
    for(int i = 0, u = m; ; ++i) {
        if(i) combine(a, a, a, 0, 1 << i - 1);
        if(u & 1 << i) {
            combine(a, A, A, 0, 1 << i);
            u ^= 1 << i;
            if(!u) break;
        }
    }
    memcpy(a, A, sizeof A);
    memset(A, 0, sizeof A);
    for(int i = 0, u = n; ; ++i) {
        if(i) combine(a, a, a, 1 << i - 1, 0);
        if(u & 1 << i) {
            combine(a, A, A, 1 << i, 0);
            u ^= 1 << i;
            if(!u) break;
        }
    }
    int x = 0, y = 0;
    for(int i = 0; i < n; ++i)
        for(int j = 0; j < m; ++j)
            if(A[i][j] < A[x][y])
                x = i, y = j;
    for(int i = 0; i < n; ++i, cout << '\n')
        for(int j = 0; j < m; ++j) cout << (z[x + i][y + j] ? '.' : '*');
}

signed main() {
    ios::sync_with_stdio(false); cin.tie(0); cout.tie(0);
#ifndef _LOCAL
//    freopen("file.in", "r", stdin);
//    freopen("file.out", "w", stdout);
#else
    system("color a");
    freopen("in.txt", "r", stdin);
    int t; cin >> t;
    while(t--)
#endif
    solve();
}

Compilation message

Main.cpp: In function 'void solve()':
Main.cpp:114:42: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
  114 |         if(i) combine(a, a, a, 0, 1 << i - 1);
      |                                        ~~^~~
Main.cpp:124:39: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
  124 |         if(i) combine(a, a, a, 1 << i - 1, 0);
      |                                     ~~^~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 48 ms 63596 KB Output is correct
2 Correct 48 ms 63468 KB Output is correct
3 Correct 48 ms 63488 KB Output is correct
4 Correct 49 ms 63596 KB Output is correct
5 Correct 49 ms 63468 KB Output is correct
6 Correct 48 ms 63468 KB Output is correct
7 Correct 46 ms 63468 KB Output is correct

Subtask #2
40.0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 48 ms 63596 KB Output is correct
2 Correct 48 ms 63468 KB Output is correct
3 Correct 48 ms 63488 KB Output is correct
4 Correct 49 ms 63596 KB Output is correct
5 Correct 49 ms 63468 KB Output is correct
6 Correct 48 ms 63468 KB Output is correct
7 Correct 46 ms 63468 KB Output is correct
8 Correct 1199 ms 73964 KB Output is correct
9 Correct 51 ms 63596 KB Output is correct
10 Correct 42 ms 63212 KB Output is correct
11 Correct 345 ms 73724 KB Output is correct
12 Correct 306 ms 73452 KB Output is correct
13 Correct 397 ms 74092 KB Output is correct
14 Correct 388 ms 74044 KB Output is correct
15 Correct 549 ms 74220 KB Output is correct
16 Correct 498 ms 74348 KB Output is correct
17 Correct 319 ms 73836 KB Output is correct

Subtask #3
0 / 60.0

# Verdict Execution time Memory Grader output
1 Correct 48 ms 63596 KB Output is correct
2 Correct 48 ms 63468 KB Output is correct
3 Correct 48 ms 63488 KB Output is correct
4 Correct 49 ms 63596 KB Output is correct
5 Correct 49 ms 63468 KB Output is correct
6 Correct 48 ms 63468 KB Output is correct
7 Correct 46 ms 63468 KB Output is correct
8 Correct 1199 ms 73964 KB Output is correct
9 Correct 51 ms 63596 KB Output is correct
10 Correct 42 ms 63212 KB Output is correct
11 Correct 345 ms 73724 KB Output is correct
12 Correct 306 ms 73452 KB Output is correct
13 Correct 397 ms 74092 KB Output is correct
14 Correct 388 ms 74044 KB Output is correct
15 Correct 549 ms 74220 KB Output is correct
16 Correct 498 ms 74348 KB Output is correct
17 Correct 319 ms 73836 KB Output is correct
18 Execution timed out 3076 ms 172396 KB Time limit exceeded
19 Halted 0 ms 0 KB -