oj.uz

Submission #849181

# Submission time Handle Problem Language Result Execution time Memory
849181 2023-09-14T08:39:31 Z fanwen Zemljište (COCI22_zemljiste) C++17
70 / 70
 426 ms 4944 KB 
#include <bits/stdc++.h>

using namespace std;

#define MASK(x) (1LL << (x))
#define BIT(x, i) (((x) >> (i)) & 1)
#define ALL(x) (x).begin(), (x).end()
#define REP(i, n) for (int i = 0, _n = n; i < _n; ++i)
#define FOR(i, a, b) for (int i = (a), _b = (b); i <= _b; ++i)
#define FORD(i, a, b) for (int i = (a), _b = (b); i >= _b; --i)
#define FORE(i, a, b) for (int i = (a), _b = (b); i < _b; ++i)
#define debug(...) "[" << #__VA_ARGS__ ": " << (__VA_ARGS__) << "] "
#define file(name) if (fopen(name".inp", "r")) { freopen(name".inp", "r", stdin); freopen(name".out", "w", stdout); }

template <class A, class B> bool minimize(A &a, B b)  { if (a > b) { a = b; return true; } return false; }
template <class A, class B> bool maximize(A &a, B b)  { if (a < b) { a = b; return true; } return false; }

const int MAXN = 505;

int N, M, A, B;
long long a[MAXN][MAXN], F[MAXN];

long long get(int x, int y, int u, int v) {
    return a[u][v] - a[x - 1][v] - a[u][y - 1] + a[x - 1][y - 1];
}

void you_make_it(void) {
    cin >> N >> M >> A >> B; if(A > B) swap(A, B);
    FOR(i, 1, N) FOR(j, 1, M) {
        cin >> a[i][j]; 
        a[i][j] += a[i - 1][j] + a[i][j - 1] - a[i - 1][j - 1];
    }
    long long ans = 1e18;
    FOR(l, 1, N) FOR(r, l, N) {
        FOR(i, 1, M) F[i] = get(l, i, r, i);
        int j = 0;
        long long sum = 0;
        FOR(i, 1, M) {
            while(j < M && abs(sum - A) + abs(sum - B) > abs(sum - A + F[j + 1]) + abs(sum - B + F[j + 1])) {
                sum += F[++j];
            }
            minimize(ans, abs(sum - A) + abs(sum - B));
            sum -= F[i];
        }
    }
    cout << ans;
}

signed main() {

#ifdef LOCAL
    freopen("TASK.inp", "r", stdin);
    freopen("TASK.out", "w", stdout);
#endif
    auto start_time = chrono::steady_clock::now();

    cin.tie(0), cout.tie(0) -> sync_with_stdio(0);

    you_make_it();

    auto end_time = chrono::steady_clock::now();

    cerr << "\nExecution time : " << chrono::duration_cast <chrono::milliseconds> (end_time - start_time).count() << "[ms]" << endl;

    return (0 ^ 0);
}

// Dream it. Wish it. Do it.

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 344 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 0 ms 344 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 344 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 0 ms 344 KB Output is correct
10 Correct 2 ms 600 KB Output is correct
11 Correct 4 ms 856 KB Output is correct
12 Correct 5 ms 860 KB Output is correct
13 Correct 4 ms 860 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 4 ms 856 KB Output is correct
16 Correct 4 ms 856 KB Output is correct
17 Correct 4 ms 856 KB Output is correct
18 Correct 3 ms 856 KB Output is correct
19 Correct 3 ms 856 KB Output is correct
20 Correct 4 ms 856 KB Output is correct
21 Correct 3 ms 1112 KB Output is correct
22 Correct 3 ms 856 KB Output is correct

Subtask #3
40.0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 344 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 0 ms 344 KB Output is correct
10 Correct 2 ms 600 KB Output is correct
11 Correct 4 ms 856 KB Output is correct
12 Correct 5 ms 860 KB Output is correct
13 Correct 4 ms 860 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 4 ms 856 KB Output is correct
16 Correct 4 ms 856 KB Output is correct
17 Correct 4 ms 856 KB Output is correct
18 Correct 3 ms 856 KB Output is correct
19 Correct 3 ms 856 KB Output is correct
20 Correct 4 ms 856 KB Output is correct
21 Correct 3 ms 1112 KB Output is correct
22 Correct 3 ms 856 KB Output is correct
23 Correct 398 ms 4944 KB Output is correct
24 Correct 389 ms 4840 KB Output is correct
25 Correct 388 ms 4688 KB Output is correct
26 Correct 400 ms 4944 KB Output is correct
27 Correct 259 ms 3920 KB Output is correct
28 Correct 388 ms 4688 KB Output is correct
29 Correct 395 ms 4840 KB Output is correct
30 Correct 389 ms 4688 KB Output is correct
31 Correct 52 ms 2392 KB Output is correct
32 Correct 387 ms 4844 KB Output is correct
33 Correct 386 ms 4688 KB Output is correct
34 Correct 393 ms 4944 KB Output is correct
35 Correct 395 ms 4944 KB Output is correct
36 Correct 426 ms 4844 KB Output is correct
37 Correct 388 ms 4848 KB Output is correct
38 Correct 390 ms 4688 KB Output is correct
39 Correct 405 ms 4944 KB Output is correct
40 Correct 395 ms 4944 KB Output is correct
41 Correct 283 ms 3576 KB Output is correct
42 Correct 289 ms 3576 KB Output is correct
43 Correct 284 ms 3416 KB Output is correct
44 Correct 294 ms 3576 KB Output is correct