oj.uz

Submission #1111316

# Submission time Handle Problem Language Result Execution time Memory
1111316 2024-11-12T04:22:54 Z thieunguyenhuy Mosaic (IOI24_mosaic) C++17
37 / 100
 415 ms 305484 KB 
#include <bits/stdc++.h>
using namespace std;

#define popcount(n) (__builtin_popcountll((n)))
#define clz(n) (__builtin_clzll((n)))
#define ctz(n) (__builtin_ctzll((n)))
#define lg(n) (63 - __builtin_clzll((n)))
#define BIT(n, i) (((n) >> (i)) & 1ll)
#define MASK(i) (1ll << (i))
#define FLIP(n, i) ((n) ^ (1ll << (i)))
#define ON(n, i) ((n) | MASK(i))
#define OFF(n, i) ((n) & ~MASK(i))

#define Int __int128
#define fi first
#define se second

typedef long long ll;
typedef unsigned long long ull;
typedef long double ld;
typedef pair<int, int> pii;
typedef pair<long long, long long> pll;
typedef pair<long long, int> pli;
typedef pair<int, long long> pil;
typedef vector<pair<int, int>> vii;
typedef vector<pair<long long, long long>> vll;
typedef vector<pair<long long, int>> vli;
typedef vector<pair<int, long long>> vil;

template <class T1, class T2>
bool maximize(T1 &x, T2 y) {
    if (x < y) {
        x = y;
        return true;
    }
    return false;
}
template <class T1, class T2>
bool minimize(T1 &x, T2 y) {
    if (x > y) {
        x = y;
        return true;
    }
    return false;
}

template <class T>
void remove_duplicate(vector<T> &ve) {
    sort (ve.begin(), ve.end());
    ve.resize(unique(ve.begin(), ve.end()) - ve.begin());
}

mt19937 rng(chrono::high_resolution_clock::now().time_since_epoch().count());
template <class T> T random(T l, T r) {
    return uniform_int_distribution<T>(l, r)(rng);
}
template <class T> T random(T r) {
    return rng() % r;
}

const int N = 1e6 + 5;
const int MOD = 1e9 + 7;
const int inf = 1e9;
const long long INF = 1e18;

int n, q;
vector<int> X, Y, T, B, L, R;

namespace sub124 {
	vector<ll> solve() {
		vector<vector<int>> c(n, vector<int>(n, 0));
		for (int i = 0; i < n; ++i) c[0][i] = X[i];
		for (int i = 0; i < n; ++i) c[i][0] = Y[i];

		for (int i = 1; i < n; ++i) for (int j = 1; j < n; ++j) if (c[i][j] == 0) {
			if (!c[i - 1][j] && !c[i][j - 1]) {
				for (int k = 0; i + k < n && j + k < n; ++k)
					c[i + k][j + k] = 1;
			}
		}

		// for (int i = 0; i < n; ++i) {
		// 	for (int j = 0; j < n; ++j) cerr << c[i][j];
		// 	cerr << '\n';
		// }

		vector<vector<ll>> pref(n, vector<ll>(n, 0));
		for (int i = 0; i < n; ++i) for (int j = 0; j < n; ++j) {
			pref[i][j] = c[i][j];
			if (i > 0) pref[i][j] += pref[i - 1][j];
			if (j > 0) pref[i][j] += pref[i][j - 1];
			if (i > 0 && j > 0) pref[i][j] -= pref[i - 1][j - 1];
		}

		auto get = [&](int x, int y, int u, int v) {
			ll ans = pref[u][v];
			if (x > 0) ans -= pref[x - 1][v];
			if (y > 0) ans -= pref[u][y - 1];
			if (x > 0 && y > 0) ans += pref[x - 1][y - 1];
			return ans;
		};

		vector<ll> ans(q);
		for (int i = 0; i < q; ++i) {
			ans[i] = get(T[i], L[i], B[i], R[i]);
		}

		return ans;
	}
}

namespace sub3 {
	bool check() {
		for (int i = 0; i < q; ++i) if (T[i] != 0 || B[i] != 0) {
			return false;
		}
		return true;
	}

	vector<ll> solve() {
		vector<int> pref(n, 0); vector<ll> ans(q, 0); pref[0] = X[0];
		for (int i = 1; i < n; ++i) pref[i] = pref[i - 1] + X[i];
		for (int i = 0; i < q; ++i) {
			ans[i] = pref[R[i]] - (L[i] == 0 ? 0 : pref[L[i] - 1]);
		}
		return ans;
	}
}

namespace sub5 {
	bool check() {
		for (int i = 0; i < n; ++i) if (X[i] != 0 || Y[i] != 0) {
			return false;
		}
		return true;
	}

	vector<ll> solve() {
		vector<ll> ans(q, 0);

		auto countEven = [&](int l, int r) {
			return (r / 2) - ((l - 1) / 2);
		};

		for (int i = 0; i < q; ++i) {
			maximize(T[i], 1), maximize(L[i], 1);
			int evenX = countEven(T[i], B[i]), oddX = (B[i] - T[i] + 1) - evenX,
				evenY = countEven(L[i], R[i]), oddY = (R[i] - L[i] + 1) - evenY;
			ans[i] = 0ll + 1ll * evenX * evenY + 1ll * oddX * oddY;
		}
		return ans;
	}
}

vector<ll> mosaic(vector<int> _X, vector<int> _Y, vector<int> _T, vector<int> _B, vector<int> _L, vector<int> _R) {
	X = _X, Y = _Y, T = _T, B = _B, L = _L, R = _R;
	n = X.size(), q = T.size();
	if (n <= 5000) return sub124::solve();
	if (sub3::check()) return sub3::solve();
	if (sub5::check()) return sub5::solve();
}

void get(vector<int> &container) {
	for (auto &x : container) cin >> x;
}

#ifdef hwe
signed main() {
    ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);

    int n, q; cin >> n >> q;

    vector<int> X(n, 0), Y(n, 0), T(q, 0), B(q, 0), L(q), R(q);
    
    get(X), get(Y);
    get(T), get(B);
    get(L), get(R);

   	vector<ll> ans = mosaic(X, Y, T, B, L, R);
   	for (auto &x : ans) cerr << x << ' ';
   	cerr << '\n';

    cerr << '\n'; return 0;
}
#endif

Compilation message

mosaic.cpp: In function 'std::vector<long long int> mosaic(std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>)':
mosaic.cpp:161:1: warning: control reaches end of non-void function [-Wreturn-type]
  161 | }
      | ^

Subtask #0
0.0 / 0.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 428 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 336 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 428 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 1 ms 848 KB Output is correct
12 Correct 1 ms 848 KB Output is correct
13 Correct 1 ms 848 KB Output is correct
14 Correct 1 ms 848 KB Output is correct
15 Correct 1 ms 336 KB Output is correct
16 Correct 1 ms 336 KB Output is correct
17 Correct 1 ms 336 KB Output is correct

Subtask #3
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 85 ms 16712 KB Output is correct
2 Correct 87 ms 16868 KB Output is correct
3 Correct 79 ms 16716 KB Output is correct
4 Correct 89 ms 16852 KB Output is correct
5 Correct 69 ms 14088 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 428 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 1 ms 848 KB Output is correct
12 Correct 1 ms 848 KB Output is correct
13 Correct 1 ms 848 KB Output is correct
14 Correct 1 ms 848 KB Output is correct
15 Correct 1 ms 336 KB Output is correct
16 Correct 1 ms 336 KB Output is correct
17 Correct 1 ms 336 KB Output is correct
18 Correct 413 ms 305364 KB Output is correct
19 Correct 379 ms 305320 KB Output is correct
20 Correct 415 ms 305484 KB Output is correct
21 Correct 384 ms 305480 KB Output is correct
22 Correct 398 ms 305272 KB Output is correct
23 Correct 114 ms 56904 KB Output is correct
24 Correct 107 ms 56904 KB Output is correct
25 Correct 125 ms 56904 KB Output is correct

Subtask #5
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 52 ms 11256 KB Output is correct
2 Correct 99 ms 16084 KB Output is correct
3 Correct 89 ms 15912 KB Output is correct
4 Correct 97 ms 15944 KB Output is correct
5 Correct 90 ms 15944 KB Output is correct
6 Correct 90 ms 15944 KB Output is correct
7 Correct 90 ms 15948 KB Output is correct
8 Correct 94 ms 15952 KB Output is correct
9 Correct 76 ms 13568 KB Output is correct
10 Correct 77 ms 13640 KB Output is correct
11 Correct 77 ms 13648 KB Output is correct

Subtask #6
0.0 / 22.0

# Verdict Execution time Memory Grader output
1 Incorrect 95 ms 15904 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #7
0.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 85 ms 16712 KB Output is correct
2 Correct 87 ms 16868 KB Output is correct
3 Correct 79 ms 16716 KB Output is correct
4 Correct 89 ms 16852 KB Output is correct
5 Correct 69 ms 14088 KB Output is correct
6 Incorrect 95 ms 15904 KB Output isn't correct
7 Halted 0 ms 0 KB -

Subtask #8
0.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 428 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 1 ms 848 KB Output is correct
13 Correct 1 ms 848 KB Output is correct
14 Correct 1 ms 848 KB Output is correct
15 Correct 1 ms 848 KB Output is correct
16 Correct 1 ms 336 KB Output is correct
17 Correct 1 ms 336 KB Output is correct
18 Correct 1 ms 336 KB Output is correct
19 Correct 85 ms 16712 KB Output is correct
20 Correct 87 ms 16868 KB Output is correct
21 Correct 79 ms 16716 KB Output is correct
22 Correct 89 ms 16852 KB Output is correct
23 Correct 69 ms 14088 KB Output is correct
24 Correct 413 ms 305364 KB Output is correct
25 Correct 379 ms 305320 KB Output is correct
26 Correct 415 ms 305484 KB Output is correct
27 Correct 384 ms 305480 KB Output is correct
28 Correct 398 ms 305272 KB Output is correct
29 Correct 114 ms 56904 KB Output is correct
30 Correct 107 ms 56904 KB Output is correct
31 Correct 125 ms 56904 KB Output is correct
32 Correct 52 ms 11256 KB Output is correct
33 Correct 99 ms 16084 KB Output is correct
34 Correct 89 ms 15912 KB Output is correct
35 Correct 97 ms 15944 KB Output is correct
36 Correct 90 ms 15944 KB Output is correct
37 Correct 90 ms 15944 KB Output is correct
38 Correct 90 ms 15948 KB Output is correct
39 Correct 94 ms 15952 KB Output is correct
40 Correct 76 ms 13568 KB Output is correct
41 Correct 77 ms 13640 KB Output is correct
42 Correct 77 ms 13648 KB Output is correct
43 Incorrect 95 ms 15904 KB Output isn't correct
44 Halted 0 ms 0 KB -