oj.uz

Submission #1094141

# Submission time Handle Problem Language Result Execution time Memory
1094141 2024-09-28T16:23:26 Z thangdz2k7 Furniture (JOI20_furniture) C++17
100 / 100
 176 ms 12884 KB 
// author : thembululquaUwU
// 3.9.2024

#include <bits/stdc++.h>
#define pb push_back
#define fi first
#define se second
#define endl '\n'

using namespace std;
using ll = long long;
using ii = pair <int, int>;
using vi = vector <int>;

const int N = 1e3 + 5;
const int mod = 1e9 + 7;

void maxl(auto &a, auto b) {a = max(a, b);}
void minl(auto &a, auto b) {a = min(a, b);}

bool blocked[N][N];
int n, m, f[N + N];

void block(int x, int y){
    f[x + y] --;
    blocked[x][y] = true;
    if (blocked[x - 1][y + 1]) {
        if (!blocked[x][y + 1]) block(x, y + 1);
        if (!blocked[x - 1][y]) block(x - 1, y);
    }
    if (blocked[x + 1][y - 1]) {
        if (!blocked[x + 1][y]) block(x + 1, y);
        if (!blocked[x][y - 1]) block(x, y - 1);
    }
}

void solve(){
    cin >> n >> m;
    for (int i = 0; i <= m + 1; ++ i) blocked[0][i] = true, blocked[n + 1][i] = true;
    for (int i = 0; i <= n + 1; ++ i) blocked[i][0] = true, blocked[i][m + 1] = true;
    for (int i = 1; i <= n; ++ i) for (int j = 1; j <= m; ++ j) ++ f[i + j];
    for (int i = 1; i <= n; ++ i) for (int j = 1; j <= m; ++ j){
        int a; cin >> a; if (a && !blocked[i][j]) block(i, j);
    }
    int q; cin >> q; while (q --){
        int x, y; cin >> x >> y;
        if (blocked[x][y]) {
            cout << 1 << endl;
            continue;
        }
        if (f[x + y] == 1){
            cout << 0 << endl;
            continue;
        }
        cout << 1 << endl;
        block(x, y);
    }
}

int main(){
    if (fopen("pqh.inp", "r")){
        freopen("pqh.inp", "r", stdin);
        freopen("pqh.out", "w", stdout);
    }
    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);

    int t = 1; // cin >> t;
    while (t --) solve();
    return 0;
}

Compilation message

furniture.cpp:18:11: warning: use of 'auto' in parameter declaration only available with '-fconcepts-ts'
   18 | void maxl(auto &a, auto b) {a = max(a, b);}
      |           ^~~~
furniture.cpp:18:20: warning: use of 'auto' in parameter declaration only available with '-fconcepts-ts'
   18 | void maxl(auto &a, auto b) {a = max(a, b);}
      |                    ^~~~
furniture.cpp:19:11: warning: use of 'auto' in parameter declaration only available with '-fconcepts-ts'
   19 | void minl(auto &a, auto b) {a = min(a, b);}
      |           ^~~~
furniture.cpp:19:20: warning: use of 'auto' in parameter declaration only available with '-fconcepts-ts'
   19 | void minl(auto &a, auto b) {a = min(a, b);}
      |                    ^~~~
furniture.cpp: In function 'int main()':
furniture.cpp:62:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   62 |         freopen("pqh.inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
furniture.cpp:63:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   63 |         freopen("pqh.out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 604 KB Output is correct
3 Correct 2 ms 484 KB Output is correct
4 Correct 2 ms 604 KB Output is correct
5 Correct 3 ms 604 KB Output is correct
6 Correct 2 ms 456 KB Output is correct
7 Correct 3 ms 604 KB Output is correct
8 Correct 3 ms 600 KB Output is correct
9 Correct 2 ms 604 KB Output is correct

Subtask #2
95.0 / 95.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 604 KB Output is correct
3 Correct 2 ms 484 KB Output is correct
4 Correct 2 ms 604 KB Output is correct
5 Correct 3 ms 604 KB Output is correct
6 Correct 2 ms 456 KB Output is correct
7 Correct 3 ms 604 KB Output is correct
8 Correct 3 ms 600 KB Output is correct
9 Correct 2 ms 604 KB Output is correct
10 Correct 6 ms 860 KB Output is correct
11 Correct 2 ms 604 KB Output is correct
12 Correct 80 ms 6120 KB Output is correct
13 Correct 39 ms 3256 KB Output is correct
14 Correct 147 ms 10924 KB Output is correct
15 Correct 146 ms 11084 KB Output is correct
16 Correct 170 ms 12112 KB Output is correct
17 Correct 162 ms 12560 KB Output is correct
18 Correct 176 ms 12128 KB Output is correct
19 Correct 165 ms 12880 KB Output is correct
20 Correct 153 ms 12824 KB Output is correct
21 Correct 165 ms 12884 KB Output is correct