Submission #826322

#	Time	Username	Problem	Language	Result	Execution time	Memory
826322		tomruk	Cell Automaton (JOI23_cell)	C++17	16 / 100	282 ms	127764 KiB

cell

#include <bits/stdc++.h>
#define N 4005
using namespace std;
int d[N][N];
const int add = 2000;
int x[100005],y[100005];
int cnt[N];
void solve(){
    int n,q;
    cin >> n >> q;
    memset(d,-1,sizeof d);
    queue<pair<int,int>> qq;
    for(int i =1;i<=n;i++){
        cin >> x[i] >> y[i];
        x[i] += add;
        y[i] += add;
        d[x[i]][y[i]] = 0;
        qq.push({x[i],y[i]});
    }
    while(qq.size()){
        auto tp = qq.front();
        qq.pop();
        auto [x,y] = tp;
        if(d[x][y] >= 1005)
            break;
        cnt[d[x][y]]++;
        for(int dx = -1;dx <=1;dx++){
            for(int dy = -1;dy<=1;dy++){
                if(abs(dx) + abs(dy) != 1)
                    continue;
                if(d[x + dx][y + dy] == -1){
                    d[x + dx][y + dy] = d[x][y] + 1;
                    qq.push({x+dx,y+dy});
                }
            }
        }
    }
    while(q--){
        int t;
        cin >> t;
        cout << cnt[t] << '\n';
    }


}

int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    #ifdef Local
    freopen("in.txt","r",stdin);
    freopen("out.txt","w",stdout);
    #endif
    int t=1;
    //cin>>t;
    while(t--){
        solve();
    }
    #ifdef Local
    cout<<endl<<fixed<<setprecision(2)<<1000.0 * clock() / CLOCKS_PER_SEC<< " milliseconds ";
    #endif
}

• Subtask 1: 4 / 4
• Subtask 2: 12 / 12
• Subtask 3: 0 / 8
• Subtask 4: 0 / 8
• Subtask 5: 0 / 17
• Subtask 6: 0 / 25
• Subtask 7: 0 / 26