oj.uz

답안 #963331

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
963331 2024-04-14T20:57:02 Z biank Maxcomp (info1cup18_maxcomp) C++14
15 / 100
 1 ms 504 KB 
#include <bits/stdc++.h>

using namespace std;

#define sz(x) int(x.size())

const int INF = 2e9;

int solve(vector<vector<int>> &a) {
    int n = sz(a), m = sz(a[0]);
    vector<vector<int>> dp1(n, vector<int>(m));
    vector<vector<int>> dp2(n, vector<int>(m));
    for (int i = 0; i < n; i++) {
        for (int j = 0; j < m; j++) {
            dp1[i][j] = -a[i][j] + i + j - 1;
            dp2[i][j] = a[i][j] + i + j - 1;
            if (i != 0) {
                dp1[i][j] = max(dp1[i][j], dp1[i - 1][j]);
                dp2[i][j] = max(dp2[i][j], dp2[i - 1][j]);
            }
            if (j != 0) {
                dp1[i][j] = max(dp1[i][j], dp1[i][j - 1]);
                dp2[i][j] = max(dp2[i][j], dp2[i][j - 1]);
            }
        }
    }
    int ans = -INF;
    for (int i = 0; i < n; i++) {
        for (int j = 0; j < m; j++) {
            ans = max({ans, a[i][j] - i - j + dp1[i][j], -a[i][j] - i - j + dp2[i][j]});
        }
    }
    return ans;
}

int main() {
    ios::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);
    
    int n, m;
    cin >> n >> m;
    vector<vector<int>> a(n, vector<int>(m));
    for (int i = 0; i < n; i++) {
        for (int j = 0; j < m; j++) {
            cin >> a[i][j];
        }
    }
    cout << solve(a) << '\n';
    
    return 0;
}

Subtask #1
0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Incorrect 1 ms 504 KB Output isn't correct
7 Halted 0 ms 0 KB -

Subtask #2
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 500 KB Output is correct

Subtask #3
0 / 30.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Incorrect 1 ms 504 KB Output isn't correct
7 Halted 0 ms 0 KB -

Subtask #4
0 / 40.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Incorrect 1 ms 504 KB Output isn't correct
7 Halted 0 ms 0 KB -