Submission #412257

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
412257	2021-05-26T16:10:15 Z	CSQ31	Furniture (JOI20_furniture)	C++14	Compilation error	0 ms	0 KB

furniture

#pragma GCC optimize("Ofast") 
#include<bits/stdc++.h>
using namespace std;
#define pb push_back
#define fi first
#define se second
#define sz(a) (int)(a.size())
#define all(a) a.begin(),a.end()
#define lb lower_bound
#define ub upper_bound
#define owo ios_base::sync_with_stdio(0);cin.tie(0);
#define MOD (ll)(1e8)
#define INF (ll)(1e18)
#define debug(...) fprintf(stderr, __VA_ARGS__),fflush(stderr)
#define time__(d) for(long blockTime = 0; (blockTime == 0 ? (blockTime=clock()) != 0 : false);\
debug("%s time : %.4fs\n", d, (double)(clock() - blockTime) / CLOCKS_PER_SEC))
typedef long long int ll;
typedef long double ld;
typedef pair<ll,ll> PII;
typedef pair<int,int> pii;
typedef vector<vector<int>> vii;
typedef vector<vector<ll>> VII;
ll gcd(ll a,ll b){if(!b)return a;else return gcd(b,a%b);}
vii vis(1111,vector<int>(1111));
int n,m;
int main()
{
	owo
	cin>>n>>m;
	vector<int>cnt(n+m+1);
	for(int i=1;i<=n;i++){
		for(int j=1;j<=m;j++){
			cin>>vis[i][j];	
		}
	}
	vii p1(n+1,vector<int>(m+1)),p2(n+1,vector<int>(m+1)),f(n+1,vector<int>(m+1));
	queue<pii>q;
	q.push({1,1});
	p1[1][1] = 1;
	while(!q.empty()){
		pii v = q.front();
		q.pop();
		if(v.fi+1<=n && !p1[v.fi+1][v.se] && !vis[v.fi+1][v.se]){
			p1[v.fi+1][v.se] = 1;
			q.push({v.f+1,v.se});
		}
		if(v.se+1<=m && !p1[v.fi][v.se+1] && !vis[v.fi][v.se+1]){
			p1[v.fi][v.se+1] = 1;
			q.push({v.fi,v.se+1});
		}
	}
	q.push({n,m});
	p2[n][m] = 1;
	while(!q.empty()){
		pii v = q.front();
		q.pop();
		if(v.fi-1 && !p2[v.fi-1][v.se] && !vis[v.fi-1][v.se]){
			p2[v.fi-1][v.se] = 1;
			q.push({v.fi-1,v.se});
		}
		if(v.se-1 && !p2[v.fi][v.se-1] && !vis[v.fi][v.se-1]){
			p2[v.fi][v.se-1] = 1;
			q.push({v.fi,v.se-1});
		}
	}
	for(int i=1;i<=n;i++){
		for(int j=1;j<=m;j++){
			if(!p1[i][j])continue;
			if(j!=m && p2[i][j+1])f[i][j] = 1;
			if(i!=n && p2[i+1][j])f[i][j] = 1;
			if(i==n && j==m)f[i][j] = 1;
			cnt[i+j]+=f[i][j];
			
		}
	}
	f[n][m] = 1;
	int Q;
	cin>>Q;
	while(Q--){
		int i,j;
		cin>>i>>j;
		if(!f[i][j] || cnt[i+j] > 1){
			cout<<1<<'\n';
			if(!f[i][j])continue;
			f[i][j]=0;
			cnt[i+j]--;
			queue<pii>q;
			q.push({i-1,j});
			q.push({i,j-1});
			while(!q.empty()){
				int x = q.front().fi;
				int y = q.front().se;
				q.pop();
				if(x<0 || x>n || y<0 || y>m || !f[x][y])continue;
				if( (x==n  || !f[x+1][y]) && (y ==m || !f[x][y+1])){
					f[x][y] = 0;
					cnt[x+y]--;
					q.push({x-1,y});
					q.push({x,y-1});
				}
			}	
			q.push({i+1,j});
			q.push({i,j+1});
			while(!q.empty()){
				int x = q.front().fi;
				int y = q.front().se;
				q.pop();
				if(x<0 || x>n || y<0 || y>m || !f[x][y])continue;
				if( (!x || !f[x-1][y]) && (!y || !f[x][y-1])){
					f[x][y] = 0;
					cnt[x+y]--;
					q.push({x+1,y});
					q.push({x,y+1});
				}
			}	
		}else cout<<0<<'\n';
	}
 
}

Compilation message

furniture.cpp: In function 'int main()':
furniture.cpp:45:14: error: 'pii' {aka 'struct std::pair<int, int>'} has no member named 'f'
   45 |    q.push({v.f+1,v.se});
      |              ^
furniture.cpp:45:23: error: no matching function for call to 'std::queue<std::pair<int, int> >::push(<brace-enclosed initializer list>)'
   45 |    q.push({v.f+1,v.se});
      |                       ^
In file included from /usr/include/c++/10/queue:64,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:86,
                 from furniture.cpp:2:
/usr/include/c++/10/bits/stl_queue.h:265:7: note: candidate: 'void std::queue<_Tp, _Sequence>::push(const value_type&) [with _Tp = std::pair<int, int>; _Sequence = std::deque<std::pair<int, int>, std::allocator<std::pair<int, int> > >; std::queue<_Tp, _Sequence>::value_type = std::pair<int, int>]'
  265 |       push(const value_type& __x)
      |       ^~~~
/usr/include/c++/10/bits/stl_queue.h:265:30: note:   no known conversion for argument 1 from '<brace-enclosed initializer list>' to 'const value_type&' {aka 'const std::pair<int, int>&'}
  265 |       push(const value_type& __x)
      |            ~~~~~~~~~~~~~~~~~~^~~
/usr/include/c++/10/bits/stl_queue.h:270:7: note: candidate: 'void std::queue<_Tp, _Sequence>::push(std::queue<_Tp, _Sequence>::value_type&&) [with _Tp = std::pair<int, int>; _Sequence = std::deque<std::pair<int, int>, std::allocator<std::pair<int, int> > >; std::queue<_Tp, _Sequence>::value_type = std::pair<int, int>]'
  270 |       push(value_type&& __x)
      |       ^~~~
/usr/include/c++/10/bits/stl_queue.h:270:25: note:   no known conversion for argument 1 from '<brace-enclosed initializer list>' to 'std::queue<std::pair<int, int> >::value_type&&' {aka 'std::pair<int, int>&&'}
  270 |       push(value_type&& __x)
      |            ~~~~~~~~~~~~~^~~