oj.uz

Submission #260073

# Submission time Handle Problem Language Result Execution time Memory
260073 2020-08-09T08:43:58 Z dandrozavr Rectangles (IOI19_rect) C++14
37 / 100
 5000 ms 28408 KB 
/*
Uruchamiamy samolot zwiadowczy ( + 500% do wzlamaniej )

/▄/  /█/  /◐/  /▐/   /▌/ /▀/ /░/ /  / choose your own style!

***IT'S OUR LONG WAY TO THE OIILLLL***


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*/


//#pragma GCC target("avx2")
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4")

#include <bits/stdc++.h>
using namespace std ;
#include <ext/pb_ds/detail/standard_policies.hpp>
//#include <boost/multiprecision/cpp_int.hpp>
//using namespace boost::multiprecision;
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;template <typename T> using ordered_set = tree <T, null_type, less< T >, rb_tree_tag,tree_order_statistics_node_update>;
namespace fastio {template <class T> ostream &operator<<(ostream &os, const vector<T> &container) {for (auto &u : container)os << u << " ";return os;} template<class T1, class T2> ostream& operator << (ostream& os, const pair<T1, T2>& p) {return os << p.first << " " << p.second;}template <class T> ostream &operator<<(ostream &os, set<T> const& con) {    for (auto &u : con)        os << u << " ";return os;} void pr() {} template <typename T, typename... args> void pr(T x, args... tail) {cout << x << " ";pr(tail...);}} using namespace fastio;

#define pb push_back
#define ll long long
#define ld long double
#define fi first
#define se second
#define F first
#define S second
#define pii pair < int , int >
#define _ <<" "<<
#define TIME 1.0 * clock() / CLOCKS_PER_SEC
mt19937_64 gen(chrono::high_resolution_clock::now().time_since_epoch().count());

const int N = 2e5 + 5;
int cnt[N];
int t[N];

ll count_rectangles(vector < vector < int > > a){
    int n = a.size();
    int m = a[0].size();
    if (n <= 3){
        if (n <= 2) return 0;
        int start = 0;
        ll ans = 0;
        int i = 1;
        for (int i = 1; i + 1 < m; ++i){
            int mx = -1;
            for (int j = i; j + 1 < m; ++j){
                mx = max(mx, a[1][j]);
                if (a[1][j] >= a[0][j] || a[1][j] >= a[2][j]) break;
                if (mx >= a[1][i - 1] || mx >= a[1][j + 1]) continue;;
                ++ans;
            }
        }
        return ans;
    }
    bool group01 = 1;
    for (int i = 0; i < n; ++i)
    for (int j = 0; j < m; ++j)
        if (a[i][j] > 1) group01 = 0;
    if (group01){
        int ans = 0;
        int d[m] = {};
        for (int i = 1; i + 1 < n; ++i){
            for (int j = 1; j + 1 < m; ++j)
                if (a[i][j] == 1) d[j] = i;
            for (int j = 1; j + 1 < m; ++j){
                if (!a[i][j]){
                    int J = j;
                    while(J + 1 < m && !a[i][J]) ++J;
                    if (!a[i][J]) break;
                    bool good = 1;
                    for (int j1 = j; j1 < J; ++j1)
                        if (!a[d[j]][j1] || !a[i + 1][j1]){
                            good = 0;
                            break;
                        }
                    for (int i1 = d[j] + 1; i1 <= i && good; ++i1)
                        if (!a[i1][j - 1] || !a[i1][J]){
                            good = 0;
                            break;
                        }
                    if (good)
                    for (int i1 = i; i1 <= i; ++i1)
                    for (int j1 = j; j1 <= J; ++j1)
                    if (a[i1][j]){
                        good = 0;
                        break;
                    }
                    if (good) ans++;
                    j = J;
                }
            }

        }
        return ans;
    }
    int ans = 0;
    for (int i = 1; i + 1 < n; ++i)
    for (int j = 1; j + 1 < m; ++j){
        if (a[i][j] >= a[i - 1][j] || a[i][j] >= a[i][j - 1]) continue;
        for (int i1 = i; i1 + 1 < n; ++i1)
        for (int j1 = j; j1 + 1 < m; ++j1){
            bool bad = 0;
            for (int k = i; k <= i1; ++k)
                if (a[k][j1] >= min(a[i - 1][j1], a[i1 + 1][j1]) ||
                    a[k][j1] >= a[k][j - 1]){
                        bad = 1;
                        break;
                    }
            if (bad) break;
            for (int I = i; I <= i1 && !bad; ++I)
            for (int J = j; J <= j1; ++J)
            if (a[I][J] >= min(a[I][j - 1], a[I][j1 + 1])){
                bad = 1;
                break;
            }
//            if (!bad)
//                cout<<i __ j __ i1 __ j1 << endl;
            ans += !bad;
        }
    }
    return ans;

}

#ifdef Estb_probitie
main() {
    ios::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);

        freopen("input.txt", "r", stdin);
        freopen("output.txt", "w", stdout);

    int n, m;
    cin >> n >> m;
    vector < vector < int > > v;
    vector < int > a;
    for (int i = 0; i < n; ++i){
        for (int j = 0; j < m; ++j){\
            int x;
            cin >> x;
            a.pb(x);
        }
        v.pb(a);
        a.clear();
    }
    cout << count_rectangles(v);

}
#endif // Estb_probitie

Compilation message

rect.cpp: In function 'long long int count_rectangles(std::vector<std::vector<int> >)':
rect.cpp:62:13: warning: unused variable 'start' [-Wunused-variable]
         int start = 0;
             ^~~~~
rect.cpp:64:13: warning: unused variable 'i' [-Wunused-variable]
         int i = 1;
             ^

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 256 KB Output is correct
2 Correct 1 ms 256 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 256 KB Output is correct
5 Correct 0 ms 256 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 1 ms 256 KB Output is correct
9 Correct 0 ms 256 KB Output is correct
10 Correct 1 ms 288 KB Output is correct
11 Correct 1 ms 256 KB Output is correct
12 Correct 1 ms 256 KB Output is correct
13 Correct 0 ms 256 KB Output is correct
14 Correct 0 ms 256 KB Output is correct
15 Correct 0 ms 256 KB Output is correct
16 Correct 0 ms 288 KB Output is correct
17 Correct 1 ms 256 KB Output is correct
18 Correct 0 ms 256 KB Output is correct
19 Correct 0 ms 384 KB Output is correct
20 Correct 1 ms 384 KB Output is correct
21 Correct 0 ms 384 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 256 KB Output is correct
2 Correct 1 ms 256 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 256 KB Output is correct
5 Correct 0 ms 256 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 1 ms 256 KB Output is correct
9 Correct 0 ms 256 KB Output is correct
10 Correct 1 ms 288 KB Output is correct
11 Correct 1 ms 256 KB Output is correct
12 Correct 1 ms 256 KB Output is correct
13 Correct 0 ms 256 KB Output is correct
14 Correct 0 ms 256 KB Output is correct
15 Correct 0 ms 256 KB Output is correct
16 Correct 0 ms 288 KB Output is correct
17 Correct 26 ms 384 KB Output is correct
18 Correct 22 ms 384 KB Output is correct
19 Correct 24 ms 512 KB Output is correct
20 Correct 1 ms 384 KB Output is correct
21 Correct 2 ms 384 KB Output is correct
22 Correct 2 ms 384 KB Output is correct
23 Correct 2 ms 384 KB Output is correct
24 Correct 1 ms 384 KB Output is correct
25 Correct 1 ms 256 KB Output is correct
26 Correct 0 ms 256 KB Output is correct
27 Correct 0 ms 384 KB Output is correct
28 Correct 1 ms 384 KB Output is correct
29 Correct 0 ms 384 KB Output is correct

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 256 KB Output is correct
2 Correct 1 ms 256 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 256 KB Output is correct
5 Correct 0 ms 256 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 1 ms 256 KB Output is correct
9 Correct 0 ms 256 KB Output is correct
10 Correct 1 ms 288 KB Output is correct
11 Correct 1 ms 256 KB Output is correct
12 Correct 1 ms 256 KB Output is correct
13 Correct 0 ms 256 KB Output is correct
14 Correct 0 ms 256 KB Output is correct
15 Correct 0 ms 256 KB Output is correct
16 Correct 0 ms 288 KB Output is correct
17 Correct 26 ms 384 KB Output is correct
18 Correct 22 ms 384 KB Output is correct
19 Correct 24 ms 512 KB Output is correct
20 Correct 1 ms 384 KB Output is correct
21 Correct 2 ms 384 KB Output is correct
22 Correct 2 ms 384 KB Output is correct
23 Correct 2 ms 384 KB Output is correct
24 Correct 1 ms 384 KB Output is correct
25 Correct 877 ms 760 KB Output is correct
26 Correct 836 ms 640 KB Output is correct
27 Correct 873 ms 760 KB Output is correct
28 Correct 8 ms 640 KB Output is correct
29 Correct 13 ms 640 KB Output is correct
30 Correct 15 ms 640 KB Output is correct
31 Correct 16 ms 640 KB Output is correct
32 Correct 14 ms 640 KB Output is correct
33 Correct 1 ms 256 KB Output is correct
34 Correct 0 ms 256 KB Output is correct
35 Correct 0 ms 384 KB Output is correct
36 Correct 1 ms 384 KB Output is correct
37 Correct 0 ms 384 KB Output is correct

Subtask #4
0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 256 KB Output is correct
2 Correct 1 ms 256 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 256 KB Output is correct
5 Correct 0 ms 256 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 1 ms 256 KB Output is correct
9 Correct 0 ms 256 KB Output is correct
10 Correct 1 ms 288 KB Output is correct
11 Correct 1 ms 256 KB Output is correct
12 Correct 1 ms 256 KB Output is correct
13 Correct 0 ms 256 KB Output is correct
14 Correct 0 ms 256 KB Output is correct
15 Correct 0 ms 256 KB Output is correct
16 Correct 0 ms 288 KB Output is correct
17 Correct 26 ms 384 KB Output is correct
18 Correct 22 ms 384 KB Output is correct
19 Correct 24 ms 512 KB Output is correct
20 Correct 1 ms 384 KB Output is correct
21 Correct 2 ms 384 KB Output is correct
22 Correct 2 ms 384 KB Output is correct
23 Correct 2 ms 384 KB Output is correct
24 Correct 1 ms 384 KB Output is correct
25 Correct 877 ms 760 KB Output is correct
26 Correct 836 ms 640 KB Output is correct
27 Correct 873 ms 760 KB Output is correct
28 Correct 8 ms 640 KB Output is correct
29 Correct 13 ms 640 KB Output is correct
30 Correct 15 ms 640 KB Output is correct
31 Correct 16 ms 640 KB Output is correct
32 Correct 14 ms 640 KB Output is correct
33 Correct 18 ms 4224 KB Output is correct
34 Execution timed out 5040 ms 4256 KB Time limit exceeded
35 Halted 0 ms 0 KB -

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 384 KB Output is correct
2 Correct 4 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 0 ms 256 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 1 ms 512 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 0 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct

Subtask #6
0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 256 KB Output is correct
2 Incorrect 86 ms 28408 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #7
0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 256 KB Output is correct
2 Correct 1 ms 256 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 256 KB Output is correct
5 Correct 0 ms 256 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 1 ms 256 KB Output is correct
9 Correct 0 ms 256 KB Output is correct
10 Correct 1 ms 288 KB Output is correct
11 Correct 1 ms 256 KB Output is correct
12 Correct 1 ms 256 KB Output is correct
13 Correct 0 ms 256 KB Output is correct
14 Correct 0 ms 256 KB Output is correct
15 Correct 0 ms 256 KB Output is correct
16 Correct 0 ms 288 KB Output is correct
17 Correct 26 ms 384 KB Output is correct
18 Correct 22 ms 384 KB Output is correct
19 Correct 24 ms 512 KB Output is correct
20 Correct 1 ms 384 KB Output is correct
21 Correct 2 ms 384 KB Output is correct
22 Correct 2 ms 384 KB Output is correct
23 Correct 2 ms 384 KB Output is correct
24 Correct 1 ms 384 KB Output is correct
25 Correct 877 ms 760 KB Output is correct
26 Correct 836 ms 640 KB Output is correct
27 Correct 873 ms 760 KB Output is correct
28 Correct 8 ms 640 KB Output is correct
29 Correct 13 ms 640 KB Output is correct
30 Correct 15 ms 640 KB Output is correct
31 Correct 16 ms 640 KB Output is correct
32 Correct 14 ms 640 KB Output is correct
33 Correct 18 ms 4224 KB Output is correct
34 Execution timed out 5040 ms 4256 KB Time limit exceeded
35 Halted 0 ms 0 KB -