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Submission #675479

# Submission time Handle Problem Language Result Execution time Memory
675479 2022-12-27T10:30:08 Z QwertyPi Orchard (NOI14_orchard) C++14
25 / 25
 183 ms 10064 KB 
#include <bits/stdc++.h>

using namespace std;

const int MAX = 1e6 + 11;
int a[MAX];
int s[MAX << 1];
int main(){
	int n, m; cin >> n >> m;
	for(int i = 0; i < n; i++){
		for(int j = 0; j < m; j++){
			cin >> a[i * m + j];
		}
	}
	int c1 = accumulate(a, a + n * m, 0LL);
	for(int i = 0; i < n; i++){
		for(int j = 0; j < m; j++){
			if(a[i * m + j] == 0) a[i * m + j] = -1;
			s[(i + 1) * m + j] = s[i * m + j] + a[i * m + j];
		}
	}
	
	int ans = 0;
	for(int l = 0; l < n; l++){
		for(int r = l; r < n; r++){
			int cur = 0;
			for(int j = 0; j < m; j++){
				int v = s[(r + 1) * m + j] - s[l * m + j];
				cur = max(0, cur + v); ans = max(ans, cur);
			}
		}
	}
	cout << c1 - ans << endl;
}

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 308 KB Output is correct

Subtask #2
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 340 KB Output is correct
2 Correct 2 ms 452 KB Output is correct
3 Correct 3 ms 340 KB Output is correct

Subtask #3
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 142 ms 10048 KB Output is correct
2 Correct 140 ms 10064 KB Output is correct
3 Correct 136 ms 10028 KB Output is correct

Subtask #4
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 28 ms 2228 KB Output is correct
2 Correct 30 ms 2144 KB Output is correct
3 Correct 28 ms 2220 KB Output is correct

Subtask #5
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 340 KB Output is correct
2 Correct 6 ms 532 KB Output is correct
3 Correct 6 ms 468 KB Output is correct

Subtask #6
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 174 ms 7632 KB Output is correct
2 Correct 183 ms 7628 KB Output is correct
3 Correct 176 ms 7688 KB Output is correct