oj.uz

Submission #522741

# Submission time Handle Problem Language Result Execution time Memory
522741 2022-02-05T15:09:25 Z alexdumitru Trampoline (info1cup20_trampoline) C++14
100 / 100
 386 ms 41856 KB 
#include <bits/stdc++.h>

using namespace std;
pair<int,int> a[200005];
int n,i,t,j,sx,sy,fx,fy,r,c,lift[200005][35];
int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cin>>r>>c>>n;
    for(i=1;i<=n;i++)
        cin>>a[i].first>>a[i].second;
    sort(a+1,a+n+1);
    for(i=1;i<=n;i++)
    {
        int st=i+1;
        int dr=n;
        int poz=0;
        while(st<=dr)
        {
            int m=(st+dr)/2;
            if(a[m].first<a[i].first+1)
                st=m+1;
            else if(a[m].first>a[i].first+1)
                dr=m-1;
            else {
                if(a[m].second>=a[i].second)
                {
                    poz=m;
                    dr=m-1;
                }
                else st=m+1;
            }
        }
        lift[i][0]=poz;
    }
    for(j=1;j<=20;j++)
        for(i=1;i<=n;i++)
            lift[i][j]=lift[lift[i][j-1]][j-1];
    cin>>t;
    while(t--)
    {
        cin>>sx>>sy>>fx>>fy;
        if(sx>fx)
        {
            cout<<"No\n";
        }
        else if(sx==fx)
        {
            if(sy<=fy)
                cout<<"Yes\n";
            else cout<<"No\n";
        }
        else {
            if(sy>fy)
            {
                cout<<"No\n";
                continue;
            }
            int st=1;
            int dr=n;
            int poz=0;
            while(st<=dr)
            {
                int m=(st+dr)/2;
                if(a[m].first<sx)
                    st=m+1;
                else if(a[m].first>sx)
                    dr=m-1;
                else {
                    if(a[m].second<sy)
                        st=m+1;
                    else {
                        dr=m-1;
                        poz=m;
                    }
                }
            }
            if(!poz)
            {
                cout<<"No\n";
                continue;
            }
            int di=fx-sx-1;
            for(j=0;j<=30;j++)
                if(di&(1<<j))
                    poz=lift[poz][j];
            if(poz&&a[poz].second<=fy)
                cout<<"Yes\n";
            else cout<<"No\n";
        }
    }
    return 0;
}

Subtask #1
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 1484 KB 200 token(s): yes count is 21, no count is 179
2 Correct 5 ms 1860 KB 200 token(s): yes count is 70, no count is 130
3 Correct 3 ms 1284 KB 197 token(s): yes count is 25, no count is 172

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 105 ms 29260 KB 4000 token(s): yes count is 99, no count is 3901
2 Correct 110 ms 31108 KB 4000 token(s): yes count is 91, no count is 3909
3 Correct 103 ms 30796 KB 4000 token(s): yes count is 4000, no count is 0
4 Correct 127 ms 31116 KB 4000 token(s): yes count is 1991, no count is 2009

Subtask #3
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 241 ms 31240 KB 200000 token(s): yes count is 110486, no count is 89514
2 Correct 254 ms 41576 KB 200000 token(s): yes count is 114664, no count is 85336
3 Correct 260 ms 41532 KB 200000 token(s): yes count is 86232, no count is 113768
4 Correct 254 ms 41640 KB 200000 token(s): yes count is 94603, no count is 105397
5 Correct 256 ms 41696 KB 200000 token(s): yes count is 94148, no count is 105852
6 Correct 262 ms 41524 KB 200000 token(s): yes count is 97163, no count is 102837

Subtask #4
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 1132 KB 5000 token(s): yes count is 3238, no count is 1762
2 Correct 7 ms 1356 KB 5000 token(s): yes count is 3837, no count is 1163
3 Correct 5 ms 1372 KB 5000 token(s): yes count is 4104, no count is 896
4 Correct 6 ms 1484 KB 5000 token(s): yes count is 3934, no count is 1066
5 Correct 5 ms 1360 KB 5000 token(s): yes count is 3384, no count is 1616
6 Correct 5 ms 1356 KB 5000 token(s): yes count is 3390, no count is 1610

Subtask #5
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 338 ms 29976 KB 200000 token(s): yes count is 171404, no count is 28596
2 Correct 329 ms 41616 KB 200000 token(s): yes count is 161254, no count is 38746
3 Correct 286 ms 41856 KB 200000 token(s): yes count is 117455, no count is 82545
4 Correct 386 ms 41708 KB 200000 token(s): yes count is 182118, no count is 17882
5 Correct 275 ms 41676 KB 200000 token(s): yes count is 167565, no count is 32435
6 Correct 268 ms 41708 KB 200000 token(s): yes count is 156797, no count is 43203
7 Correct 256 ms 41756 KB 200000 token(s): yes count is 156797, no count is 43203
8 Correct 265 ms 41768 KB 200000 token(s): yes count is 122100, no count is 77900
9 Correct 363 ms 41600 KB 200000 token(s): yes count is 139670, no count is 60330
10 Correct 350 ms 41656 KB 200000 token(s): yes count is 165806, no count is 34194
11 Correct 355 ms 41680 KB 200000 token(s): yes count is 175646, no count is 24354
12 Correct 230 ms 41740 KB 200000 token(s): yes count is 134695, no count is 65305
13 Correct 235 ms 41700 KB 200000 token(s): yes count is 126733, no count is 73267
14 Correct 294 ms 41692 KB 200000 token(s): yes count is 155290, no count is 44710
15 Correct 250 ms 41684 KB 200000 token(s): yes count is 129674, no count is 70326