oj.uz

Submission #369946

# Submission time Handle Problem Language Result Execution time Memory
369946 2021-02-22T19:28:27 Z A_D Trampoline (info1cup20_trampoline) C++14
66 / 100
 485 ms 35924 KB 
#include <bits/stdc++.h>
#define int long long
#define ii pair<int,int>
#define F first
#define S second
#define du long double
using namespace std;
const int N=4e5+1000;
const int l=20;
int nxt[N][l];
vector<ii> vec;
main()
{
    int r,c,n;
    cin>>r>>c>>n;
    for(int i=1;i<=n;i++){
        int a,b;
        scanf("%lld",&a);
        scanf("%lld",&b);
        vec.push_back({a,b});
    }
    sort(vec.begin(),vec.end());
    int sz=vec.size();
    for(int i=0;i<l;i++)nxt[sz][i]=sz;
    for(int i=0;i<sz;i++){
        int nx=lower_bound(vec.begin(),vec.end(),make_pair(vec[i].F+1,vec[i].S))-vec.begin();
        if(nx!=sz&&vec[nx].F!=vec[i].F+1){
            nx=sz;
        }
        nxt[i][0]=nx;
    }
    for(int j=1;j<l;j++){
        for(int i=0;i<sz;i++){
            nxt[i][j]=nxt[nxt[i][j-1]][j-1];
        }
    }
    vec.push_back({1e10,1e10});
//    for(int i=0;i<vec.size();i++)cout<<i<<" "<<vec[i].F<<" "<<vec[i].S<<endl;
  //  cout<<endl;
    /*for(int i=0;i<sz;i++){
        for(int j=0;j<l;j++){
            cout<<nxt[i][j]<<" ";
        }
        cout<<endl;
    }*/
    int t;
    cin>>t;
    while(t--){
        int x1,x2,y1,y2;
        scanf("%lld",&x1);
        scanf("%lld",&y1);
        scanf("%lld",&x2);
        scanf("%lld",&y2);
        if(y2<y1||x2<x1){
//            cout<<1;
            printf("No\n");
            continue;
        }
        if(x1==x2){
            printf("Yes\n");
            continue;
        }
        int i=lower_bound(vec.begin(),vec.end(),make_pair(x1,y1))-vec.begin();
        for(int j=l-1;j>=0;j--){
            if(((x2-x1-1)&(1<<j))){
               if(i != sz) i = nxt[i][j];
            }
        }
  //      cout<<i<<endl;
        int l=vec[i].S;
        if(vec[i].S<=y2){
            printf("Yes\n");
            continue;
        }
        int r=nxt[i][0];
        r=vec[r].S;
    //    cout<<i<<endl;
        if(l<=y2&&y2<=r){
            printf("Yes\n");
            continue;
        }
        printf("No\n");
    }
}

Compilation message

trampoline.cpp:12:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   12 | main()
      |      ^
trampoline.cpp: In function 'int main()':
trampoline.cpp:18:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   18 |         scanf("%lld",&a);
      |         ~~~~~^~~~~~~~~~~
trampoline.cpp:19:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   19 |         scanf("%lld",&b);
      |         ~~~~~^~~~~~~~~~~
trampoline.cpp:50:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   50 |         scanf("%lld",&x1);
      |         ~~~~~^~~~~~~~~~~~
trampoline.cpp:51:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   51 |         scanf("%lld",&y1);
      |         ~~~~~^~~~~~~~~~~~
trampoline.cpp:52:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   52 |         scanf("%lld",&x2);
      |         ~~~~~^~~~~~~~~~~~
trampoline.cpp:53:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   53 |         scanf("%lld",&y2);
      |         ~~~~~^~~~~~~~~~~~

Subtask #1
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 2044 KB 200 token(s): yes count is 21, no count is 179
2 Correct 6 ms 2152 KB 200 token(s): yes count is 70, no count is 130
3 Incorrect 4 ms 1644 KB expected NO, found YES [52nd token]

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 152 ms 35084 KB 4000 token(s): yes count is 99, no count is 3901
2 Correct 150 ms 34900 KB 4000 token(s): yes count is 91, no count is 3909
3 Correct 148 ms 35028 KB 4000 token(s): yes count is 4000, no count is 0
4 Correct 149 ms 34980 KB 4000 token(s): yes count is 1991, no count is 2009

Subtask #3
0 / 11.0

# Verdict Execution time Memory Grader output
1 Incorrect 331 ms 35668 KB expected NO, found YES [5147th token]
2 Halted 0 ms 0 KB -

Subtask #4
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 1308 KB 5000 token(s): yes count is 3238, no count is 1762
2 Correct 7 ms 1308 KB 5000 token(s): yes count is 3837, no count is 1163
3 Correct 7 ms 1308 KB 5000 token(s): yes count is 4104, no count is 896
4 Correct 9 ms 1308 KB 5000 token(s): yes count is 3934, no count is 1066
5 Correct 10 ms 1308 KB 5000 token(s): yes count is 3384, no count is 1616
6 Correct 7 ms 1308 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 466 ms 35800 KB 200000 token(s): yes count is 171404, no count is 28596
2 Correct 424 ms 35668 KB 200000 token(s): yes count is 161254, no count is 38746
3 Correct 342 ms 35668 KB 200000 token(s): yes count is 117455, no count is 82545
4 Correct 485 ms 35924 KB 200000 token(s): yes count is 182118, no count is 17882
5 Correct 382 ms 35688 KB 200000 token(s): yes count is 167565, no count is 32435
6 Correct 366 ms 35832 KB 200000 token(s): yes count is 156797, no count is 43203
7 Correct 356 ms 35668 KB 200000 token(s): yes count is 156797, no count is 43203
8 Correct 350 ms 35668 KB 200000 token(s): yes count is 122100, no count is 77900
9 Correct 456 ms 35668 KB 200000 token(s): yes count is 139670, no count is 60330
10 Correct 469 ms 35844 KB 200000 token(s): yes count is 165806, no count is 34194
11 Correct 484 ms 35668 KB 200000 token(s): yes count is 175646, no count is 24354
12 Correct 323 ms 35796 KB 200000 token(s): yes count is 134695, no count is 65305
13 Correct 327 ms 35840 KB 200000 token(s): yes count is 126733, no count is 73267
14 Correct 386 ms 35624 KB 200000 token(s): yes count is 155290, no count is 44710
15 Correct 335 ms 35636 KB 200000 token(s): yes count is 129674, no count is 70326