oj.uz

Submission #915918

# Submission time Handle Problem Language Result Execution time Memory
915918 2024-01-24T22:00:32 Z biank Soccer Stadium (IOI23_soccer) C++17
64 / 100
 1494 ms 74144 KB 
#include <bits/stdc++.h>
using namespace std;
#define ALL(x) x.begin(),x.end()
#define SIZE(x) (int)x.size()
#define forsn(i,s,n) for(int i=int(s);i<int(n);i++)
#define forn(i,n) for(int i=0;i<int(n);i++)
#define dforsn(i,s,n) for(int i=int(n)-1;i>=int(s);i--)
#define dforn(i,n) for(int i=int(n)-1;i>=0;i--)
#define fst first
#define snd second
typedef pair<int,int> ii;
const int MAXN = 500;
int f[MAXN][MAXN];
int dp[MAXN][MAXN];
ii ran[MAXN][MAXN];
int L[MAXN][MAXN], R[MAXN][MAXN];

int n;

pair<int,ii> solve(int l, int r, int p) {
    if(l>r) return {0LL,{-1,n}};
    if(dp[l][r]!=-1) return {dp[l][r],ran[l][r]};
    auto calculate = [&](pair<int,ii> prev, int i) {
        auto [val,range] = prev;
        int mini = max(range.fst, L[i][p]), maxi = min(range.snd, R[i][p]);
        return (pair<int,ii>){val+max(maxi-mini-1,0),{mini,maxi}};
    };
    pair<int,ii> res = max(calculate(solve(l+1,r,p),l),
                           calculate(solve(l,r-1,p),r));
    dp[l][r]=res.fst, ran[l][r]=res.snd;
    return res;
}

int biggest_stadium(int N, vector<vector<int>> F) {
    n=N;
    forn(i,n) forn(j,n) {
        f[i][j]=F[i][j];
    }
    forn(i,n) {
        int k=-1;
        forn(j,n) {
            if(f[i][j]==1) k=j;
            L[i][j]=k;
        }
    }
    forn(i,n) {
        int k=n;
        dforn(j,n) {
            if(f[i][j]==1) k=j;
            R[i][j]=k;
        }
    }
    int ans=0;
    forn(i,n) {
        memset(dp, -1, sizeof dp);
        ans=max(ans,solve(0,n-1,i).fst);
    }
    return ans;
}

Subtask #0
0.0 / 0.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4956 KB ok

Subtask #1
0.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4952 KB ok
2 Correct 1 ms 4956 KB ok
3 Correct 1 ms 4956 KB ok
4 Correct 1 ms 4956 KB ok
5 Correct 1 ms 4956 KB ok
6 Correct 1 ms 5076 KB ok
7 Correct 14 ms 5468 KB ok
8 Correct 1482 ms 8348 KB ok
9 Runtime error 280 ms 74144 KB Execution killed with signal 11
10 Halted 0 ms 0 KB -

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4952 KB ok
2 Correct 1 ms 4956 KB ok
3 Correct 1 ms 4956 KB ok
4 Correct 1 ms 4956 KB ok
5 Correct 1 ms 4952 KB ok
6 Correct 1 ms 4956 KB ok
7 Correct 1 ms 4956 KB ok
8 Correct 1 ms 4956 KB ok
9 Correct 2 ms 4956 KB ok
10 Correct 1 ms 4956 KB ok
11 Correct 1 ms 4956 KB ok
12 Correct 2 ms 4956 KB ok
13 Correct 1 ms 4952 KB ok

Subtask #3
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4956 KB ok
2 Correct 2 ms 4952 KB ok
3 Correct 1 ms 4956 KB ok
4 Correct 1 ms 4956 KB ok
5 Correct 1 ms 4956 KB ok
6 Correct 1 ms 4952 KB ok
7 Correct 1 ms 4956 KB ok
8 Correct 1 ms 4956 KB ok
9 Correct 1 ms 4956 KB ok
10 Correct 2 ms 4956 KB ok
11 Correct 1 ms 4956 KB ok
12 Correct 1 ms 4956 KB ok
13 Correct 2 ms 4956 KB ok
14 Correct 1 ms 4952 KB ok
15 Correct 1 ms 4952 KB ok
16 Correct 1 ms 4952 KB ok
17 Correct 1 ms 4956 KB ok
18 Correct 2 ms 4956 KB ok
19 Correct 1 ms 4956 KB ok
20 Correct 1 ms 4956 KB ok
21 Correct 1 ms 4956 KB ok
22 Correct 2 ms 5120 KB ok
23 Correct 2 ms 4956 KB ok
24 Correct 1 ms 4956 KB ok
25 Correct 1 ms 5208 KB ok
26 Correct 1 ms 5060 KB ok

Subtask #4
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4956 KB ok
2 Correct 2 ms 4952 KB ok
3 Correct 1 ms 4956 KB ok
4 Correct 1 ms 4956 KB ok
5 Correct 1 ms 4956 KB ok
6 Correct 1 ms 4956 KB ok
7 Correct 1 ms 4956 KB ok
8 Correct 1 ms 4952 KB ok
9 Correct 1 ms 4956 KB ok
10 Correct 1 ms 4956 KB ok
11 Correct 1 ms 4956 KB ok
12 Correct 2 ms 4956 KB ok
13 Correct 1 ms 4956 KB ok
14 Correct 1 ms 4956 KB ok
15 Correct 2 ms 4956 KB ok
16 Correct 1 ms 4952 KB ok
17 Correct 1 ms 4952 KB ok
18 Correct 1 ms 4952 KB ok
19 Correct 1 ms 4956 KB ok
20 Correct 2 ms 4956 KB ok
21 Correct 1 ms 4956 KB ok
22 Correct 1 ms 4956 KB ok
23 Correct 1 ms 4956 KB ok
24 Correct 2 ms 5120 KB ok
25 Correct 2 ms 4956 KB ok
26 Correct 1 ms 4956 KB ok
27 Correct 1 ms 5208 KB ok
28 Correct 1 ms 5060 KB ok
29 Correct 2 ms 4952 KB ok
30 Correct 3 ms 5212 KB ok
31 Correct 2 ms 5212 KB ok
32 Correct 2 ms 5212 KB ok
33 Correct 2 ms 5212 KB ok
34 Correct 3 ms 5212 KB ok
35 Correct 3 ms 5212 KB ok
36 Correct 2 ms 5212 KB ok
37 Correct 2 ms 5212 KB ok
38 Correct 2 ms 5212 KB ok
39 Correct 2 ms 5260 KB ok
40 Correct 2 ms 5208 KB ok
41 Correct 2 ms 5212 KB ok

Subtask #5
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4956 KB ok
2 Correct 2 ms 4952 KB ok
3 Correct 1 ms 4956 KB ok
4 Correct 1 ms 4956 KB ok
5 Correct 1 ms 4956 KB ok
6 Correct 1 ms 4956 KB ok
7 Correct 1 ms 4956 KB ok
8 Correct 1 ms 4952 KB ok
9 Correct 1 ms 4956 KB ok
10 Correct 1 ms 4956 KB ok
11 Correct 1 ms 4956 KB ok
12 Correct 2 ms 4956 KB ok
13 Correct 1 ms 4956 KB ok
14 Correct 1 ms 4956 KB ok
15 Correct 2 ms 4956 KB ok
16 Correct 1 ms 4952 KB ok
17 Correct 1 ms 4952 KB ok
18 Correct 1 ms 4952 KB ok
19 Correct 1 ms 4956 KB ok
20 Correct 2 ms 4956 KB ok
21 Correct 1 ms 4956 KB ok
22 Correct 1 ms 4956 KB ok
23 Correct 1 ms 4956 KB ok
24 Correct 2 ms 5120 KB ok
25 Correct 2 ms 4956 KB ok
26 Correct 1 ms 4956 KB ok
27 Correct 1 ms 5208 KB ok
28 Correct 1 ms 5060 KB ok
29 Correct 2 ms 4952 KB ok
30 Correct 3 ms 5212 KB ok
31 Correct 2 ms 5212 KB ok
32 Correct 2 ms 5212 KB ok
33 Correct 2 ms 5212 KB ok
34 Correct 3 ms 5212 KB ok
35 Correct 3 ms 5212 KB ok
36 Correct 2 ms 5212 KB ok
37 Correct 2 ms 5212 KB ok
38 Correct 2 ms 5212 KB ok
39 Correct 2 ms 5260 KB ok
40 Correct 2 ms 5208 KB ok
41 Correct 2 ms 5212 KB ok
42 Correct 1137 ms 8348 KB ok
43 Correct 1491 ms 8840 KB ok
44 Correct 1121 ms 9044 KB ok
45 Correct 1099 ms 8860 KB ok
46 Correct 1481 ms 9048 KB ok
47 Correct 1086 ms 9044 KB ok
48 Correct 1075 ms 8972 KB ok
49 Correct 1458 ms 8848 KB ok
50 Correct 1494 ms 9052 KB ok
51 Correct 1474 ms 8840 KB ok
52 Correct 1481 ms 8840 KB ok
53 Correct 1483 ms 9044 KB ok
54 Correct 1489 ms 9044 KB ok
55 Correct 1484 ms 8836 KB ok
56 Correct 1460 ms 8840 KB ok
57 Correct 1458 ms 8836 KB ok
58 Correct 1474 ms 8836 KB ok
59 Correct 1103 ms 9044 KB ok

Subtask #6
0.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4956 KB ok
2 Correct 2 ms 4952 KB ok
3 Correct 1 ms 4956 KB ok
4 Correct 1 ms 4956 KB ok
5 Correct 1 ms 4956 KB ok
6 Correct 1 ms 4956 KB ok
7 Correct 1 ms 5076 KB ok
8 Correct 14 ms 5468 KB ok
9 Correct 1482 ms 8348 KB ok
10 Runtime error 280 ms 74144 KB Execution killed with signal 11
11 Halted 0 ms 0 KB -