Submission #1145165

#	Time	Username	Problem	Language	Result	Execution time	Memory
1145165		dobri_oke	Trampoline (info1cup20_trampoline)	C++20	43 / 100	708 ms	99028 KiB

trampoline

//#pragma GCC target ("avx2")   
//#pragma GCC optimize ("Ofast")   
#include <bits/stdc++.h>   
using namespace std;  
#define int long long  
#define F first 
#define S second 
#define pb push_back 
const int N = 1e6, NN=26;
const int mod=1e9+7;
vector <int > v[N];
//int gcd(int a, int b) { if (b == 0) return a; else return gcd(b, a % b); }
//int lcm(int a, int b) { return a / gcd(a, b) * b; }
//int binpow(int a,int b){if(!b)return 1; if(b&1)return a*binpow(a,b-1)%mod; int x=binpow(a,b/2); return x*x%mod;}
signed main(){   
    ios_base::sync_with_stdio(0);   
    cin.tie(0);   
    cout.tie(0);
    int r, c, n;
    cin >> r >> c >> n;
    map < pair < int, int >, bool > mp;
    set < int > st;
    for(int i=1;i<=n;i++){
        int a, b;
        cin >> a >> b;
        mp[{a, b}]=1;
        v[a].pb(b);
        st.insert(a);
    }
    int t;
    cin >> t;
    if(t<=4000 && r<=2500 && c<=2500){
        while(t--){
            int xs, ys, xe, ye;
            cin >> xs >> ys >> xe >> ye;
            while(xs<xe){
                if(ys>ye) break;
                if(mp[{xs, ys}]==0){
                    ys++;
                }
                else{
                    xs++;
                }
            }
            if(xs==xe && ys<=ye) cout << "Yes\n";
            else cout << "No\n";
        }
    }
    else{
        while(st.size()>0){
            int g=*st.begin();
            st.erase(g);
            sort(v[g].begin(), v[g].end());
        }
        while(t--){
            int xs, ys, xe, ye;
            cin >> xs >> ys >> xe >> ye;
            while(xs<xe){
                int l=0, r=v[xs].size()-1, jump=-1;
                while(l<=r){
                    int m=(l+r)/2;
                    if(v[xs][m]<=ys){
                        l=m+1;
                    }
                    else{
                        r=m-1;
                        jump=m;
                    }
                }
                if(jump==-1) break;
                else{
                    ys=v[xs][jump];
                    xs++;
                }
            }
            if(xs==xe && ys<=ye) cout << "Yes\n";
            else cout << "No\n";
        }
    }
}

• Subtask 1: 23 / 23
• Subtask 2: 20 / 20
• Subtask 3: 0 / 11
• Subtask 4: 0 / 19
• Subtask 5: 0 / 27