Submission #303417

# Submission time Handle Problem Language Result Execution time Memory
303417 2020-09-20T09:53:05 Z vaaven Furniture (JOI20_furniture) C++14
0 / 100
6 ms 1408 KB
/*                                                                                                    
                                             `-:://:::-                                             
                                           `//:-------:/:`                                          
                                          .+:--.......--:+`                                         
                                         `+:--..`````..--//`                                        
                                         .o:--..`` ``..--:o`                                        
                                         .o:--...```..---+/`                                        
                                       `/y+o/---....---:+o.                                         
                                   `...````-os+/:---:/+o/--.`                                       
              `-/+++++/:.      `...`       :h+d+oooo+/+-`   ...                                     
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                                         .+/--...```..--:+/`                                        
                                         `-o/:---...---:++.                                         
                                          `-+o+/:---:/+o/.                                          
                                            `.:+oooo+/-.`                                           
                                               ``````                                               
*/
// #pragma GCC optimize("Ofast,no-stack-protector")
// #pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,avx2,tune=native")
// #pragma GCC optimize("unroll-loops")
// #pragma GCC optimize("fast-math")
// #pragma GCC optimize("section-anchors")
// #pragma GCC optimize("profile-values,profile-reorder-functions,tracer")
// #pragma GCC optimize("vpt")
// #pragma GCC optimize("rename-registers")
// #pragma GCC optimize("move-loop-invariants")
// #pragma GCC optimize("unswitch-loops")
// #pragma GCC optimize("function-sections")
// #pragma GCC optimize("data-sections")
// #pragma GCC optimize("branch-target-load-optimize")
// #pragma GCC optimize("branch-target-load-optimize2")
// #pragma GCC optimize("btr-bb-exclusive")
// #pragma comment(linker, "/STACK:367077216")
#include <iostream>
#include <iostream>
#include <vector>
#include <algorithm>
#include <iomanip>
#include <tuple>
#include <math.h>
#include <set>
#include <stack>
#include <bitset>
#include <map>
#include <queue>
#include <random>
#include <unordered_set>
#include <unordered_map>
#define DEBUG
#define fi first
#define se second
#define pqueue priority_queue
#define pb(x) push_back(x)
//#define endl '\n'
#define all(x) x.begin(), x.end()
#define int long  long
#define mk(a, b) make_pair(a, b)
 
using namespace std;
      
typedef long long ll;
typedef unsigned long long ull;
typedef long double ld;
typedef vector<int> vi;
typedef vector<vector<int> > vvi;
typedef vector<ull> vull;
typedef vector<ll> vll;
// typedef tuple<ll, ll, ll> tiii;
typedef pair<int, int> pii;
typedef vector<pair<int, int> > vpii;
typedef vector<bool> vb;
typedef vector<string> vs;
typedef vector< vector<ll> > vvll;
typedef vector<char> vc;
      
const int inf = 1e9 + 228;
const ll infll = 1e18;
const ll MOD = 1e9 + 7;
//static const int maxn = 1e6 + 228;
const ld eps = 1e-5;
const int K = 31;
const ld eps2 = 1e-9;
const ll MOD2 = 998244353;
const ll dosz = 5e5;
const ll SZ = (1<<18);
const ld PI = 3.1415926535;
     
void fast_io(){
  ios_base::sync_with_stdio(0);
  cin.tie(0);
  // freopen("a.in", "r", stdin);
  // freopen("digit.out", "w", stdout);
}

int n, m;
const int maxn = 1001;
int kek[maxn][maxn];
bool okk(int a, int b){
 return !(a<0 || a>=n || b<0 || b>=m);
}

void solve(){ 
  cin >> n >> m;
  vpii to_check;
  for(int i=0; i<n; i++){
    for(int j=0; j<m; j++){
      int t;
      cin >> t;
      kek[i][j] = '0';
      if(t==1){
        to_check.pb(make_pair(i, j));
      }
    } 
  }
  vi good(n+m+228, 0);
  for(int i=0; i<n; i++){
    for(int j=0; j<m; j++){
      good[i+j]++;
    }
  }
  for(pii i:to_check){
    queue<pii> q;
    q.push(i);
    if(kek[i.first][i.second] == '0' && good[i.first + i.second] == 1){
      continue;
    }
    while(!q.empty()){
      pii cur = q.front();
      q.pop();
      if(kek[cur.first][cur.second] == '1')
        continue;
      good[cur.first + cur.second]--;
      kek[cur.first][cur.second] = '1';
      if(okk(cur.first+1, cur.second-1) && kek[cur.first+1][cur.second-1]){
        q.push(make_pair(cur.first+1, cur.second));
        q.push(make_pair(cur.first, cur.second+1));
      }
      if(okk(cur.first-1, cur.second+1) && kek[cur.first-1][cur.second+1]){
        q.push(make_pair(cur.first-1, cur.second));
        q.push(make_pair(cur.first, cur.second-1));
      }
    }
  }
  int q;
  cin >> q;
  for(int _=0; _<q; _++){
    pii i;
    cin >> i.first >> i.second;
    i.second--;
    i.first--;
    queue<pii> q;
    q.push(i);
    if(kek[i.first][i.second] == '0' && good[i.first + i.second] == 1){
      cout << 0 << endl;
      continue;
    }
    while(!q.empty()){
      pii cur = q.front();
      q.pop();
      if(kek[cur.first][cur.second] == '1')
        continue;
      good[cur.first + cur.second]--;
      kek[cur.first][cur.second] = '1';
      if(okk(cur.first+1, cur.second-1) && kek[cur.first+1][cur.second-1]){
        q.push(make_pair(cur.first+1, cur.second));
        q.push(make_pair(cur.first, cur.second+1));
      }
      if(okk(cur.first-1, cur.second+1) && kek[cur.first-1][cur.second+1]){
        q.push(make_pair(cur.first-1, cur.second));
        q.push(make_pair(cur.first, cur.second-1));
      }
    }
    cout << 1 << endl;
  }
}

signed main(){
    fast_io();
    srand(time(NULL));
    // cout << fixed << setprecision(3);
    int q = 1;
    // cin >> q;
    while(q--)
        solve();
}
# Verdict Execution time Memory Grader output
1 Runtime error 6 ms 1408 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -
# Verdict Execution time Memory Grader output
1 Runtime error 6 ms 1408 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -