#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;
int n, m;
vector<vector<int>> matrix;
vector<vector<bool>> visited;
int dx[] = {1, -1, 0, 0};
int dy[] = {0, 0, 1, -1};
bool isValid(int x, int y) {
return x >= 0 && x < n && y >= 0 && y < m;
}
void dfs(int x, int y, int& sum, int& count) {
visited[x][y] = true;
sum += matrix[x][y];
count++;
for (int dir = 0; dir < 4; ++dir) {
int nx = x + dx[dir];
int ny = y + dy[dir];
if (isValid(nx, ny) && !visited[nx][ny]) {
dfs(nx, ny, sum, count);
}
}
}
int main() {
cin >> n >> m;
matrix.resize(n, vector<int>(m));
visited.resize(n, vector<bool>(m, false));
for (int i = 0; i < n; ++i) {
for (int j = 0; j < m; ++j) {
cin >> matrix[i][j];
}
}
int maxValue = -1e9;
for (int i = 0; i < n; ++i) {
for (int j = 0; j < m; ++j) {
if (!visited[i][j]) {
int sum = 0, count = 0;
dfs(i, j, sum, count);
if (count > 0) {
maxValue = max(maxValue, sum - count);
}
}
}
}
cout << maxValue << endl;
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
1 ms |
336 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
1 ms |
508 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
1 ms |
336 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
1 ms |
336 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |