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Submission #824643

# Submission time Handle Problem Language Result Execution time Memory
824643 2023-08-14T08:29:53 Z exodus_ Orchard (NOI14_orchard) C++14
25 / 25
 327 ms 14004 KB 
#include<bits/stdc++.h>
#define FAST ios_base::sync_with_stdio(false); cin.tie(0);
using namespace std;
int main() {
    FAST
    int r,c;
    int hitone=0;
    cin >> r >> c;
    int orch[r+1][c+1];
    for(int i=1; i<=r; i++) {
        for(int j=1; j<=c; j++) {
            cin >> orch[i][j];
            if(orch[i][j]==1) hitone++;
        }
    }
    int answer = hitone;
    int ter, sum;
    vector<int>co(c+1);
    for(int i=1; i<=r; i++) {
        for(int k=1; k<=c; k++) {
            co[k]=0;
        }
        for(int j=i; j<=r; j++) {
            sum = 0;
            ter = 0;
            for(int kol=1; kol<=c; kol++) {
                if(orch[j][kol]) {
                    sum-=1;
                } else {
                    sum+=1;
                }
                co[kol]+=sum;
                answer = min(answer, hitone+co[kol]-ter);
                ter = max(ter, co[kol]);
            }
        }
    }
    cout << answer << endl;
    return 0;
}

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 276 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 212 KB Output is correct

Subtask #2
4.0 / 4.0

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

Subtask #3
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 54 ms 12360 KB Output is correct
2 Correct 58 ms 14004 KB Output is correct
3 Correct 62 ms 13920 KB Output is correct

Subtask #4
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 1896 KB Output is correct
2 Correct 11 ms 2240 KB Output is correct
3 Correct 11 ms 2256 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 9 ms 340 KB Output is correct
3 Correct 9 ms 400 KB Output is correct

Subtask #6
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 322 ms 3268 KB Output is correct
2 Correct 327 ms 3280 KB Output is correct
3 Correct 323 ms 3264 KB Output is correct