oj.uz

Submission #377522

# Submission time Handle Problem Language Result Execution time Memory
377522 2021-03-14T09:35:34 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;
const int W = 1 << 10;

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 & W - 1, 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.sd >> 10, e[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 & W - 1, e[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 >> 10, e[i]);
    ne = 0;
    for(int i = 0; i < d; ++i)
        iterate(i);

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

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 combine(int (*)[2005], int (*)[2005], int (*)[2005], int, int)':
Main.cpp:72:28: warning: suggest parentheses around '-' in operand of '&' [-Wparentheses]
   72 |         add(f[i].ft.sd & W - 1, i);
      |                          ~~^~~
Main.cpp:86:31: warning: suggest parentheses around '-' in operand of '&' [-Wparentheses]
   86 |         add(f[e[i]].ft.ft & W - 1, e[i]);
      |                             ~~^~~
Main.cpp: In function 'void solve()':
Main.cpp:123:42: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
  123 |         if(i) combine(a, a, a, 0, 1 << i - 1);
      |                                        ~~^~~
Main.cpp:133:39: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
  133 |         if(i) combine(a, a, a, 1 << i - 1, 0);
      |                                     ~~^~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 53 ms 63468 KB Output is correct
2 Correct 52 ms 63468 KB Output is correct
3 Correct 52 ms 63468 KB Output is correct
4 Correct 50 ms 63468 KB Output is correct
5 Correct 52 ms 63468 KB Output is correct
6 Correct 51 ms 63596 KB Output is correct
7 Correct 49 ms 63468 KB Output is correct

Subtask #2
40.0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 53 ms 63468 KB Output is correct
2 Correct 52 ms 63468 KB Output is correct
3 Correct 52 ms 63468 KB Output is correct
4 Correct 50 ms 63468 KB Output is correct
5 Correct 52 ms 63468 KB Output is correct
6 Correct 51 ms 63596 KB Output is correct
7 Correct 49 ms 63468 KB Output is correct
8 Correct 1989 ms 73068 KB Output is correct
9 Correct 57 ms 63596 KB Output is correct
10 Correct 43 ms 63212 KB Output is correct
11 Correct 604 ms 72940 KB Output is correct
12 Correct 508 ms 73068 KB Output is correct
13 Correct 734 ms 73196 KB Output is correct
14 Correct 699 ms 73336 KB Output is correct
15 Correct 1118 ms 73196 KB Output is correct
16 Correct 1014 ms 73452 KB Output is correct
17 Correct 539 ms 73196 KB Output is correct

Subtask #3
0 / 60.0

# Verdict Execution time Memory Grader output
1 Correct 53 ms 63468 KB Output is correct
2 Correct 52 ms 63468 KB Output is correct
3 Correct 52 ms 63468 KB Output is correct
4 Correct 50 ms 63468 KB Output is correct
5 Correct 52 ms 63468 KB Output is correct
6 Correct 51 ms 63596 KB Output is correct
7 Correct 49 ms 63468 KB Output is correct
8 Correct 1989 ms 73068 KB Output is correct
9 Correct 57 ms 63596 KB Output is correct
10 Correct 43 ms 63212 KB Output is correct
11 Correct 604 ms 72940 KB Output is correct
12 Correct 508 ms 73068 KB Output is correct
13 Correct 734 ms 73196 KB Output is correct
14 Correct 699 ms 73336 KB Output is correct
15 Correct 1118 ms 73196 KB Output is correct
16 Correct 1014 ms 73452 KB Output is correct
17 Correct 539 ms 73196 KB Output is correct
18 Execution timed out 3075 ms 172396 KB Time limit exceeded
19 Halted 0 ms 0 KB -