Submission #914737

#	Time	Username	Problem	Language	Result	Execution time	Memory
914737		NValchanov	Trampoline (info1cup20_trampoline)	C++17	43 / 100	36 ms	10620 KiB

trampoline

#include<bits/stdc++.h>

#define endl '\n'

using namespace std;

typedef long long ll;

const ll MAXN=2e5+10;
const ll MAXR=1e9+10;
const ll MAXC=1e9+10;
const ll MAXT=2e5+10;

ll r,c,n,t;
bool a[3000][3000];

bool check(ll x1,ll y1,ll x2,ll y2)
{
    return x1<=x2&&y1<=y2;
}

void query(ll x1,ll y1,ll x2,ll y2)
{
    if(!check(x1,y1,x2,y2))
    {
        cout<<"No"<<endl;
        return;
    }
    ll x=x1,y=y1;
    while(x<=r&&y<=c)
    {
        if(x==x2&&y==y2)
        {
            cout<<"Yes"<<endl;
            return;
        }
        if(a[x][y]&&x<x2)
            x++;
        else
            y++;
    }
    cout<<"No"<<endl;
}

void read()
{
    cin>>r>>c>>n;
    for(ll i=1;i<=n;i++)
    {
        ll x,y;
        cin>>x>>y;
        a[x][y]=true;
    }
    cin>>t;
    for(ll i=1;i<=t;i++)
    {
        ll x1,y1,x2,y2;
        cin>>x1>>y1>>x2>>y2;
        query(x1,y1,x2,y2);
    }
}

int main()
{
    #ifdef ONLINE_JUDGE
    freopen(".in", "r", stdin);
    freopen(".out", "w", stdout);
#endif
	ios_base::sync_with_stdio(false);
	cin.tie(nullptr);
	cout.tie(nullptr);

    read();

	return 0;
}

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