oj.uz

Submission #858281

# Submission time Handle Problem Language Result Execution time Memory
858281 2023-10-07T22:33:55 Z Danilo21 Soccer Stadium (IOI23_soccer) C++17
31 / 100
 466 ms 113556 KB 
#include <bits/stdc++.h>
#include "soccer.h"

#define ll long long
#define ld long double
#define pb push_back
#define fi first
#define se second
#define en '\n'
#define sp ' '
#define tb '\t'
#define ri(n) int n; cin >> n
#define rl(n) ll n; cin >> n
#define rs(s) string s; cin >> s
#define rc(c) char c; cin >> c
#define rv(v) for (auto &x : v) cin >> x
#define pven(v) for (auto x : v) cout << x << en
#define pv(v) for (auto x : v) cout << x << sp; cout << en
#define all(v) v.begin(), v.end()
#define rall(v) v.rbegin(), v.rend()
#define yes cout << "YES" << en
#define no cout << "NO" << en
#define smin(a, b) a = min(a, b)
#define smax(a, b) a = max(a, b)
#define ssort(a, b) if (a < b) swap(a, b)
#define bitcnt(a) (__builtin_popcountll(a))
#define bithigh(a) (63-__builtin_clzll(a))
#define lg bithigh
#define highpow(a) (1LL << (ll)lg(a))

using namespace std;

const ll LINF = 2e18;
const int mxN = 2e3+10, INF = 2e9;
int n, a[mxN][mxN], preX[mxN][mxN], preY[mxN][mxN];

int SumRow(int i, int l, int r){
    if (l>r) swap(l, r);
    return preX[i][r] - preX[i][l-1];
}

int SumCol(int j, int l, int r){
    if (l>r) swap(l, r);
    return preY[r][j] - preY[l-1][j];
}

bool Check(int x1, int y1, int x2, int y2){

    return
    SumRow(x1, y1, y2) + SumCol(y2, x1, x2) == 0 ||
    SumCol(y1, x1, x2) + SumRow(x2, y1, y2) == 0;
}

bool Check(int N, vector<vector<int> > F){

    n = N;
    for (int i = 0; i < n; i++)
        for (int j = 0; j < n; j++)
            a[i+1][j+1] = F[i][j];
    for (int i = 1; i <= n; i++)
        for (int j = 1; j <= n; j++)
            preX[i][j] = preY[i][j] = a[i][j];
    for (int i = 1; i <= n; i++){
        for (int j = 1; j <= n; j++){
            preX[i][j] += preX[i][j-1];
            preY[i][j] += preY[i-1][j];
        }
    }
    for (int i = 0; i <= n+1; i++)
        a[0][i] = a[i][0] = a[n+1][i] = a[i][n+1] = 1;
    vector<array<int, 2> > v;
    for (int i = 1; i <= n; i++)
        for (int j = 1; j <= n; j++)
            if (!a[i][j] && a[i-1][j] + a[i+1][j] + a[i][j-1] + a[i][j+1])
                v.pb({i, j});
    for (auto [x1, y1] : v)
        for (auto [x2, y2] : v)
            if (!Check(x1, y1, x2, y2))
                return 0;
    return 1;
}

int One(int N, vector<vector<int> > F){

    int x, y;
    for (int i = 0; i < N; i++){
        for (int j = 0; j < N; j++){
            if (F[i][j]){
                x = i; y = j;
            }
        }
    }
    return N*N - min(x+1, N-x) * min(y+1, N-y);
}

vector<vector<int> > Gen(int N, int mask){

    vector<vector<int> > F(N, vector<int>(N, 1));
    for (int i = 0; i < N*N; i++)
        if (mask & (1 << i)) F[i/N][i%N] = 0;
    return F;
}

int Brute(int N, vector<vector<int> > F){

    int used = 0;
    for (int i = 0; i < N; i++)
        for (int j = 0; j < N; j++)
            if (F[i][j]) used |= (1 << (i*N+j));
    int ans = 1;
    for (int mask = 1; mask < (1 << (N*N)); mask++)
        if (((mask & used) == 0) && Check(N, Gen(N, mask)))
            smax(ans, bitcnt(mask));
    return ans;
}

int biggest_stadium(int N, vector<vector<int>> F){

    int cnt = 0;
    for (int i = 0; i < N; i++)
        for (int j = 0; j < N; j++)
            cnt += F[i][j];
    if (cnt == 1 && false) return One(N, F);
    if (N <= 3) return Brute(N, F);
    if (!Check(N, F)) return 0;
    return N*N-cnt;
}

Compilation message

soccer.cpp: In function 'int One(int, std::vector<std::vector<int> >)':
soccer.cpp:93:39: warning: 'y' may be used uninitialized in this function [-Wmaybe-uninitialized]
   93 |     return N*N - min(x+1, N-x) * min(y+1, N-y);
      |                                      ~^~
soccer.cpp:93:23: warning: 'x' may be used uninitialized in this function [-Wmaybe-uninitialized]
   93 |     return N*N - min(x+1, N-x) * min(y+1, N-y);
      |                      ~^~

Subtask #0
0.0 / 0.0

# Verdict Execution time Memory Grader output
1 Partially correct 1 ms 4440 KB partial

Subtask #1
1.5 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4444 KB ok
2 Correct 1 ms 4444 KB ok
3 Correct 1 ms 4444 KB ok
4 Correct 1 ms 4444 KB ok
5 Correct 1 ms 4444 KB ok
6 Correct 1 ms 4444 KB ok
7 Partially correct 2 ms 8792 KB partial
8 Partially correct 18 ms 19804 KB partial
9 Partially correct 270 ms 95004 KB partial

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4444 KB ok
2 Correct 1 ms 4444 KB ok
3 Correct 1 ms 4440 KB ok
4 Correct 1 ms 4444 KB ok
5 Correct 1 ms 4444 KB ok
6 Correct 1 ms 4444 KB ok
7 Correct 1 ms 4444 KB ok
8 Correct 1 ms 4444 KB ok
9 Correct 1 ms 4444 KB ok
10 Correct 1 ms 4444 KB ok
11 Correct 1 ms 4536 KB ok
12 Correct 1 ms 4444 KB ok
13 Correct 1 ms 4444 KB ok

Subtask #3
5.5 / 22.0

# Verdict Execution time Memory Grader output
1 Partially correct 1 ms 4440 KB partial
2 Correct 1 ms 4444 KB ok
3 Correct 1 ms 4444 KB ok
4 Correct 1 ms 4440 KB ok
5 Correct 1 ms 4444 KB ok
6 Correct 1 ms 4444 KB ok
7 Correct 1 ms 4444 KB ok
8 Correct 1 ms 4444 KB ok
9 Correct 1 ms 4444 KB ok
10 Correct 1 ms 4444 KB ok
11 Correct 1 ms 4444 KB ok
12 Correct 1 ms 4536 KB ok
13 Correct 1 ms 4444 KB ok
14 Correct 1 ms 4444 KB ok
15 Partially correct 1 ms 4440 KB partial
16 Partially correct 1 ms 4440 KB partial
17 Partially correct 1 ms 4444 KB partial
18 Partially correct 1 ms 4444 KB partial
19 Partially correct 1 ms 4696 KB partial
20 Correct 1 ms 4444 KB ok
21 Correct 1 ms 4444 KB ok
22 Partially correct 1 ms 4444 KB partial
23 Partially correct 1 ms 4444 KB partial
24 Partially correct 1 ms 4444 KB partial
25 Partially correct 1 ms 4444 KB partial
26 Partially correct 1 ms 4444 KB partial

Subtask #4
4.5 / 18.0

# Verdict Execution time Memory Grader output
1 Partially correct 1 ms 4440 KB partial
2 Correct 1 ms 4444 KB ok
3 Correct 1 ms 4444 KB ok
4 Correct 1 ms 4444 KB ok
5 Correct 1 ms 4444 KB ok
6 Correct 1 ms 4440 KB ok
7 Correct 1 ms 4444 KB ok
8 Correct 1 ms 4444 KB ok
9 Correct 1 ms 4444 KB ok
10 Correct 1 ms 4444 KB ok
11 Correct 1 ms 4444 KB ok
12 Correct 1 ms 4444 KB ok
13 Correct 1 ms 4444 KB ok
14 Correct 1 ms 4536 KB ok
15 Correct 1 ms 4444 KB ok
16 Correct 1 ms 4444 KB ok
17 Partially correct 1 ms 4440 KB partial
18 Partially correct 1 ms 4440 KB partial
19 Partially correct 1 ms 4444 KB partial
20 Partially correct 1 ms 4444 KB partial
21 Partially correct 1 ms 4696 KB partial
22 Correct 1 ms 4444 KB ok
23 Correct 1 ms 4444 KB ok
24 Partially correct 1 ms 4444 KB partial
25 Partially correct 1 ms 4444 KB partial
26 Partially correct 1 ms 4444 KB partial
27 Partially correct 1 ms 4444 KB partial
28 Partially correct 1 ms 4444 KB partial
29 Partially correct 1 ms 4696 KB partial
30 Partially correct 1 ms 6492 KB partial
31 Partially correct 1 ms 6488 KB partial
32 Partially correct 1 ms 6492 KB partial
33 Partially correct 1 ms 6700 KB partial
34 Correct 1 ms 6492 KB ok
35 Correct 1 ms 6492 KB ok
36 Partially correct 1 ms 6492 KB partial
37 Partially correct 1 ms 6492 KB partial
38 Partially correct 1 ms 6492 KB partial
39 Partially correct 1 ms 6492 KB partial
40 Partially correct 1 ms 6492 KB partial
41 Partially correct 1 ms 6492 KB partial

Subtask #5
4.0 / 16.0

# Verdict Execution time Memory Grader output
1 Partially correct 1 ms 4440 KB partial
2 Correct 1 ms 4444 KB ok
3 Correct 1 ms 4444 KB ok
4 Correct 1 ms 4444 KB ok
5 Correct 1 ms 4444 KB ok
6 Correct 1 ms 4440 KB ok
7 Correct 1 ms 4444 KB ok
8 Correct 1 ms 4444 KB ok
9 Correct 1 ms 4444 KB ok
10 Correct 1 ms 4444 KB ok
11 Correct 1 ms 4444 KB ok
12 Correct 1 ms 4444 KB ok
13 Correct 1 ms 4444 KB ok
14 Correct 1 ms 4536 KB ok
15 Correct 1 ms 4444 KB ok
16 Correct 1 ms 4444 KB ok
17 Partially correct 1 ms 4440 KB partial
18 Partially correct 1 ms 4440 KB partial
19 Partially correct 1 ms 4444 KB partial
20 Partially correct 1 ms 4444 KB partial
21 Partially correct 1 ms 4696 KB partial
22 Correct 1 ms 4444 KB ok
23 Correct 1 ms 4444 KB ok
24 Partially correct 1 ms 4444 KB partial
25 Partially correct 1 ms 4444 KB partial
26 Partially correct 1 ms 4444 KB partial
27 Partially correct 1 ms 4444 KB partial
28 Partially correct 1 ms 4444 KB partial
29 Partially correct 1 ms 4696 KB partial
30 Partially correct 1 ms 6492 KB partial
31 Partially correct 1 ms 6488 KB partial
32 Partially correct 1 ms 6492 KB partial
33 Partially correct 1 ms 6700 KB partial
34 Correct 1 ms 6492 KB ok
35 Correct 1 ms 6492 KB ok
36 Partially correct 1 ms 6492 KB partial
37 Partially correct 1 ms 6492 KB partial
38 Partially correct 1 ms 6492 KB partial
39 Partially correct 1 ms 6492 KB partial
40 Partially correct 1 ms 6492 KB partial
41 Partially correct 1 ms 6492 KB partial
42 Partially correct 19 ms 20952 KB partial
43 Partially correct 19 ms 20956 KB partial
44 Partially correct 17 ms 20060 KB partial
45 Partially correct 19 ms 19872 KB partial
46 Partially correct 18 ms 20448 KB partial
47 Partially correct 17 ms 19800 KB partial
48 Correct 26 ms 19800 KB ok
49 Partially correct 21 ms 19824 KB partial
50 Partially correct 19 ms 21016 KB partial
51 Partially correct 18 ms 20448 KB partial
52 Partially correct 21 ms 19804 KB partial
53 Partially correct 19 ms 19804 KB partial
54 Partially correct 21 ms 20056 KB partial
55 Partially correct 17 ms 19804 KB partial
56 Partially correct 17 ms 19800 KB partial
57 Partially correct 17 ms 19800 KB partial
58 Partially correct 17 ms 19876 KB partial
59 Partially correct 19 ms 19872 KB partial

Subtask #6
7.5 / 30.0

# Verdict Execution time Memory Grader output
1 Partially correct 1 ms 4440 KB partial
2 Correct 1 ms 4444 KB ok
3 Correct 1 ms 4444 KB ok
4 Correct 1 ms 4444 KB ok
5 Correct 1 ms 4444 KB ok
6 Correct 1 ms 4444 KB ok
7 Correct 1 ms 4444 KB ok
8 Partially correct 2 ms 8792 KB partial
9 Partially correct 18 ms 19804 KB partial
10 Partially correct 270 ms 95004 KB partial
11 Correct 1 ms 4440 KB ok
12 Correct 1 ms 4444 KB ok
13 Correct 1 ms 4444 KB ok
14 Correct 1 ms 4444 KB ok
15 Correct 1 ms 4444 KB ok
16 Correct 1 ms 4444 KB ok
17 Correct 1 ms 4444 KB ok
18 Correct 1 ms 4444 KB ok
19 Correct 1 ms 4536 KB ok
20 Correct 1 ms 4444 KB ok
21 Correct 1 ms 4444 KB ok
22 Partially correct 1 ms 4440 KB partial
23 Partially correct 1 ms 4440 KB partial
24 Partially correct 1 ms 4444 KB partial
25 Partially correct 1 ms 4444 KB partial
26 Partially correct 1 ms 4696 KB partial
27 Correct 1 ms 4444 KB ok
28 Correct 1 ms 4444 KB ok
29 Partially correct 1 ms 4444 KB partial
30 Partially correct 1 ms 4444 KB partial
31 Partially correct 1 ms 4444 KB partial
32 Partially correct 1 ms 4444 KB partial
33 Partially correct 1 ms 4444 KB partial
34 Partially correct 1 ms 4696 KB partial
35 Partially correct 1 ms 6492 KB partial
36 Partially correct 1 ms 6488 KB partial
37 Partially correct 1 ms 6492 KB partial
38 Partially correct 1 ms 6700 KB partial
39 Correct 1 ms 6492 KB ok
40 Correct 1 ms 6492 KB ok
41 Partially correct 1 ms 6492 KB partial
42 Partially correct 1 ms 6492 KB partial
43 Partially correct 1 ms 6492 KB partial
44 Partially correct 1 ms 6492 KB partial
45 Partially correct 1 ms 6492 KB partial
46 Partially correct 1 ms 6492 KB partial
47 Partially correct 19 ms 20952 KB partial
48 Partially correct 19 ms 20956 KB partial
49 Partially correct 17 ms 20060 KB partial
50 Partially correct 19 ms 19872 KB partial
51 Partially correct 18 ms 20448 KB partial
52 Partially correct 17 ms 19800 KB partial
53 Correct 26 ms 19800 KB ok
54 Partially correct 21 ms 19824 KB partial
55 Partially correct 19 ms 21016 KB partial
56 Partially correct 18 ms 20448 KB partial
57 Partially correct 21 ms 19804 KB partial
58 Partially correct 19 ms 19804 KB partial
59 Partially correct 21 ms 20056 KB partial
60 Partially correct 17 ms 19804 KB partial
61 Partially correct 17 ms 19800 KB partial
62 Partially correct 17 ms 19800 KB partial
63 Partially correct 17 ms 19876 KB partial
64 Partially correct 19 ms 19872 KB partial
65 Partially correct 267 ms 111488 KB partial
66 Partially correct 274 ms 113340 KB partial
67 Partially correct 249 ms 99216 KB partial
68 Partially correct 269 ms 95264 KB partial
69 Partially correct 246 ms 97220 KB partial
70 Partially correct 248 ms 99776 KB partial
71 Partially correct 270 ms 95004 KB partial
72 Partially correct 263 ms 95008 KB partial
73 Correct 466 ms 95096 KB ok
74 Correct 443 ms 94980 KB ok
75 Partially correct 251 ms 95020 KB partial
76 Partially correct 263 ms 113556 KB partial
77 Partially correct 265 ms 113080 KB partial
78 Partially correct 260 ms 99464 KB partial
79 Partially correct 264 ms 97164 KB partial
80 Partially correct 257 ms 96968 KB partial
81 Partially correct 269 ms 95944 KB partial
82 Partially correct 266 ms 97172 KB partial
83 Partially correct 259 ms 103616 KB partial
84 Partially correct 249 ms 94800 KB partial
85 Partially correct 278 ms 95000 KB partial
86 Partially correct 255 ms 94976 KB partial
87 Partially correct 244 ms 94800 KB partial
88 Partially correct 262 ms 95004 KB partial
89 Partially correct 244 ms 95056 KB partial
90 Partially correct 243 ms 95004 KB partial
91 Partially correct 246 ms 95260 KB partial
92 Partially correct 282 ms 99376 KB partial
93 Partially correct 254 ms 100292 KB partial
94 Partially correct 267 ms 101004 KB partial
95 Partially correct 256 ms 99068 KB partial
96 Partially correct 248 ms 100244 KB partial
97 Partially correct 260 ms 100492 KB partial
98 Partially correct 247 ms 96968 KB partial
99 Partially correct 260 ms 101024 KB partial
100 Partially correct 249 ms 95060 KB partial
101 Partially correct 263 ms 95004 KB partial
102 Partially correct 260 ms 95024 KB partial
103 Partially correct 385 ms 95056 KB partial
104 Partially correct 247 ms 95008 KB partial
105 Partially correct 249 ms 95060 KB partial
106 Partially correct 241 ms 95008 KB partial
107 Partially correct 264 ms 95124 KB partial
108 Partially correct 260 ms 111980 KB partial
109 Partially correct 259 ms 113028 KB partial