Submission #1134895

#	Time	Username	Problem	Language	Result	Execution time	Memory
1134895		8pete8	Toy (CEOI24_toy)	C++20	100 / 100	109 ms	44616 KiB

Main

#include<iostream>
#include<stack>
#include<map>
#include<vector>
#include<string>
#include<cassert>
#include<unordered_map>
#include <queue>
#include <cstdint>
#include<cstring>
#include<limits.h>
#include<cmath>
#include<set>
#include<algorithm>
#include <iomanip>
#include<numeric>
#include<bitset>
using namespace std;
#define ll long long
#define f first
#define s second
#define pii pair<int,int>
#define ppii pair<int,pii>
#define vi vector<int>
#define pb push_back
#define all(x) x.begin(),x.end()
#define rall(x) x.rbegin(),x.rend()
#define F(n) for(int i=0;i<n;i++)
#define lb lower_bound
#define ub upper_bound
#define fastio ios::sync_with_stdio(false);cin.tie(NULL);
#pragma GCC optimize ("03,unroll-lopps")
#define int long long
using namespace std;
const int mod=1e9+7,mxn=2e5+5,inf=1e18,minf=-1e18,lg=30;
//#undef int
int n,k,m,w,h,l;
void setIO(string name){		
	ios_base::sync_with_stdio(0); cin.tie(0);		
	freopen((name+".in").c_str(),"r",stdin);		
	freopen((name+".out").c_str(),"w",stdout);	
}
int vis[2002][2002];
char grid[2002][2002];
vector<int>X[2002],Y[2002];
int32_t main(){
    fastio
    cin>>w>>h>>k>>l;
    int x1,y1,x2,y2;cin>>x1>>y1>>x2>>y2;
    for(int j=0;j<h;j++)for(int i=0;i<w;i++){
        cin>>grid[i][j];
        if(grid[i][j]=='X'){
            X[i].pb(j);
            Y[j].pb(i);
        }
    }
    for(int i=0;i<w;i++){
        X[i].pb(-1),X[i].pb(h);
        sort(all(X[i]));
        X[i].erase(unique(all(X[i])),X[i].end());
    }
    for(int i=0;i<h;i++){
        Y[i].pb(-1),Y[i].pb(w);
        sort(all(Y[i]));
        Y[i].erase(unique(all(Y[i])),Y[i].end());
    }
    //x , y 
    queue<pii>q;
    q.push({x2,y1});
    while(!q.empty()){
        int cx=q.front().f,cy=q.front().s;
        q.pop();
        if(vis[cx][cy])continue;
        vis[cx][cy]=1;
        //x+1 right
        //x-1 left
        //y+1 down
        //y-1 up
        for(int add=-1;add<=1;add+=2){
            pii bound;
            if(cx+add<w&&cx+add>=0&&grid[cx+add][cy]!='X'&&!vis[cx+add][cy]){
                auto it=lb(all(X[cx]),cy);
                bound={(*prev(it)),(*it)};
                it=lb(all(X[cx+add]),cy);
                bound={max(bound.f,(*prev(it))),min(bound.s,(*it))};
                if(bound.s-bound.f-1>=l)q.push({cx+add,cy});
            }
            if(cy+add<h&&cy+add>=0&&grid[cx][cy+add]!='X'&&!vis[cx][cy+add]){
                auto it=lb(all(Y[cy]),cx);
                bound={(*prev(it)),(*it)};
                it=lb(all(Y[cy+add]),cx);
                bound={max(bound.f,(*prev(it))),min(bound.s,(*it))};
                if(bound.s-bound.f-1>=k)q.push({cx,cy+add});
            }
        }
    }
    for(int i=0;i<w;i++)for(int j=0;j<h;j++)if(grid[i][j]=='*'){
        if(vis[i][j])cout<<"YES\n";
        else cout<<"NO\n";
        return 0;
    }
}
/*
*/

Compilation message (stderr)

Main.cpp:32:40: warning: bad option '-funroll-lopps' to pragma 'optimize' [-Wpragmas]
   32 | #pragma GCC optimize ("03,unroll-lopps")
      |                                        ^
Main.cpp:38:23: warning: bad option '-funroll-lopps' to attribute 'optimize' [-Wattributes]
   38 | void setIO(string name){
      |                       ^
Main.cpp:46:14: warning: bad option '-funroll-lopps' to attribute 'optimize' [-Wattributes]
   46 | int32_t main(){
      |              ^
Main.cpp: In function 'void setIO(std::string)':
Main.cpp:40:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   40 |         freopen((name+".in").c_str(),"r",stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Main.cpp:41:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   41 |         freopen((name+".out").c_str(),"w",stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 0: 0 / 0
• Subtask 1: 14 / 14
• Subtask 2: 21 / 21
• Subtask 3: 9 / 9
• Subtask 4: 29 / 29
• Subtask 5: 27 / 27