oj.uz

Submission #1078649

# Submission time Handle Problem Language Result Execution time Memory
1078649 2024-08-28T02:55:08 Z doducanh Examination (JOI19_examination) C++14
43 / 100
 1663 ms 109204 KB 
///breaker
#pragma GCC optimize("O3")
#include<bits/stdc++.h>
using namespace std;
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;

#define ordered_set tree<pair<int,int>, null_type,less<pair<int,int> >, rb_tree_tag,tree_order_statistics_node_update>

#define ll long long
#define fi first
#define se second
#define ii pair<int,int>
#define mp make_pair
#define in(x) freopen(x,"r",stdin)
#define out(x) freopen(x,"w",stdout)
#define bit(x,i) ((x>>i)&1)
#define lc (id<<1)
#define rc ((id<<1)^1)
const int maxn=1e5+7;
const int sz=350;
struct BIT
{
    int t[maxn];
    void add(int x,int val){for(;x;x-=(x&(-x)))t[x]+=val;}
    int get(int x){int res=0;for(;x<maxn;x+=(x&(-x)))res+=t[x];return res;}
}t[(maxn)/sz+1];
struct Data
{
    int x,y,z,id;
};
int n,q;
Data a[maxn];
Data qu[maxn];
int ans[maxn];
ordered_set s[maxn];
int pos(int x,vector<int>&v)
{
    return lower_bound(v.begin(),v.end(),x)-v.begin()+1;
}
bool cmp(Data a,Data b)
{
    return a.z>b.z;
}
void sol(void){
    cin>>n>>q;
    vector<int>vx;
    vector<int>vy;
    for(int i=1;i<=n;i++){
        cin>>a[i].x>>a[i].y;
        vx.push_back(a[i].x);
        vy.push_back(a[i].y);
        a[i].z=a[i].x+a[i].y;
    }
    for(int i=1;i<=q;i++){
        cin>>qu[i].x>>qu[i].y>>qu[i].z;
        vx.push_back(qu[i].x);
        vy.push_back(qu[i].y);
        qu[i].id=i;
    }
    sort(vx.begin(),vx.end());
    sort(vy.begin(),vy.end());
    vx.erase(unique(vx.begin(),vx.end()),vx.end());
    vy.erase(unique(vy.begin(),vy.end()),vy.end());
    sort(a+1,a+n+1,cmp);
    sort(qu+1,qu+q+1,cmp);
    int l=1;

    for(int i=1;i<=n;i++){
        int pos1=pos(a[i].x,vx);
        int pos2=pos(a[i].y,vy);
        t[(pos1-1)/sz].add(pos2,1);
        s[pos1].insert({pos2,i});
        while(l<=q&&(i==n||qu[l].z>a[i+1].z)){
            if(qu[l].z>a[i].z){
                l++;
                continue;
            }
            pos1=pos(qu[l].x,vx);
            pos2=pos(qu[l].y,vy);
            int tmp=0;
            for(int i=(pos1-1)/sz+1; i<=(vx.size()-1)/sz; i++)tmp+=t[i].get(pos2);
            for(int i=pos1; i<=((pos1-1)/sz+1)*sz; i++)tmp+=s[i].size()-s[i].order_of_key({pos2,0});
            ans[qu[l].id]=tmp;
            l++;
        }
    }
    for(int i=1;i<=q;i++){
        cout<<ans[i]<<"\n";
    }
}
signed main(void)
{
    ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
    int t=1;
    while(t--){
        sol();
    }
    // you should actually read the stuff at the bottom
    return 0;
}
/* stuff you should look for
 * int overflow, array bounds
 * special cases (n=1?)
 * do smth instead of nothing and stay organized
 * WRITE STUFF DOWN
 * DON'T GET STUCK ON ONE APPROACH
 */

Compilation message

examination.cpp: In function 'void sol()':
examination.cpp:83:39: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   83 |             for(int i=(pos1-1)/sz+1; i<=(vx.size()-1)/sz; i++)tmp+=t[i].get(pos2);
      |                                      ~^~~~~~~~~~~~~~~~~~

Subtask #1
2.0 / 2.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 9816 KB Output is correct
2 Correct 6 ms 9816 KB Output is correct
3 Correct 6 ms 9820 KB Output is correct
4 Correct 6 ms 9820 KB Output is correct
5 Correct 6 ms 9816 KB Output is correct
6 Correct 6 ms 9864 KB Output is correct
7 Correct 15 ms 10840 KB Output is correct
8 Correct 12 ms 10844 KB Output is correct
9 Correct 13 ms 10816 KB Output is correct
10 Correct 12 ms 10328 KB Output is correct
11 Correct 12 ms 10348 KB Output is correct
12 Correct 9 ms 10076 KB Output is correct
13 Correct 13 ms 10844 KB Output is correct
14 Correct 13 ms 10840 KB Output is correct
15 Correct 13 ms 10844 KB Output is correct
16 Correct 10 ms 10348 KB Output is correct
17 Correct 11 ms 10328 KB Output is correct
18 Correct 8 ms 10064 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1492 ms 108380 KB Output is correct
2 Correct 1447 ms 108344 KB Output is correct
3 Correct 1538 ms 108396 KB Output is correct
4 Correct 754 ms 24564 KB Output is correct
5 Correct 292 ms 23796 KB Output is correct
6 Correct 257 ms 22636 KB Output is correct
7 Correct 1663 ms 89136 KB Output is correct
8 Correct 934 ms 89544 KB Output is correct
9 Correct 853 ms 74624 KB Output is correct
10 Correct 180 ms 23660 KB Output is correct
11 Correct 696 ms 24424 KB Output is correct
12 Correct 197 ms 22328 KB Output is correct

Subtask #3
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1492 ms 108380 KB Output is correct
2 Correct 1447 ms 108344 KB Output is correct
3 Correct 1538 ms 108396 KB Output is correct
4 Correct 754 ms 24564 KB Output is correct
5 Correct 292 ms 23796 KB Output is correct
6 Correct 257 ms 22636 KB Output is correct
7 Correct 1663 ms 89136 KB Output is correct
8 Correct 934 ms 89544 KB Output is correct
9 Correct 853 ms 74624 KB Output is correct
10 Correct 180 ms 23660 KB Output is correct
11 Correct 696 ms 24424 KB Output is correct
12 Correct 197 ms 22328 KB Output is correct
13 Correct 1025 ms 109020 KB Output is correct
14 Correct 1451 ms 108908 KB Output is correct
15 Correct 1454 ms 108392 KB Output is correct
16 Correct 593 ms 25060 KB Output is correct
17 Correct 252 ms 24016 KB Output is correct
18 Correct 196 ms 22888 KB Output is correct
19 Correct 1059 ms 108992 KB Output is correct
20 Correct 1229 ms 109204 KB Output is correct
21 Correct 943 ms 95344 KB Output is correct
22 Correct 175 ms 23664 KB Output is correct
23 Correct 695 ms 24424 KB Output is correct
24 Correct 163 ms 22380 KB Output is correct

Subtask #4
0 / 57.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 9816 KB Output is correct
2 Correct 6 ms 9816 KB Output is correct
3 Correct 6 ms 9820 KB Output is correct
4 Correct 6 ms 9820 KB Output is correct
5 Correct 6 ms 9816 KB Output is correct
6 Correct 6 ms 9864 KB Output is correct
7 Correct 15 ms 10840 KB Output is correct
8 Correct 12 ms 10844 KB Output is correct
9 Correct 13 ms 10816 KB Output is correct
10 Correct 12 ms 10328 KB Output is correct
11 Correct 12 ms 10348 KB Output is correct
12 Correct 9 ms 10076 KB Output is correct
13 Correct 13 ms 10844 KB Output is correct
14 Correct 13 ms 10840 KB Output is correct
15 Correct 13 ms 10844 KB Output is correct
16 Correct 10 ms 10348 KB Output is correct
17 Correct 11 ms 10328 KB Output is correct
18 Correct 8 ms 10064 KB Output is correct
19 Correct 1492 ms 108380 KB Output is correct
20 Correct 1447 ms 108344 KB Output is correct
21 Correct 1538 ms 108396 KB Output is correct
22 Correct 754 ms 24564 KB Output is correct
23 Correct 292 ms 23796 KB Output is correct
24 Correct 257 ms 22636 KB Output is correct
25 Correct 1663 ms 89136 KB Output is correct
26 Correct 934 ms 89544 KB Output is correct
27 Correct 853 ms 74624 KB Output is correct
28 Correct 180 ms 23660 KB Output is correct
29 Correct 696 ms 24424 KB Output is correct
30 Correct 197 ms 22328 KB Output is correct
31 Correct 1025 ms 109020 KB Output is correct
32 Correct 1451 ms 108908 KB Output is correct
33 Correct 1454 ms 108392 KB Output is correct
34 Correct 593 ms 25060 KB Output is correct
35 Correct 252 ms 24016 KB Output is correct
36 Correct 196 ms 22888 KB Output is correct
37 Correct 1059 ms 108992 KB Output is correct
38 Correct 1229 ms 109204 KB Output is correct
39 Correct 943 ms 95344 KB Output is correct
40 Correct 175 ms 23664 KB Output is correct
41 Correct 695 ms 24424 KB Output is correct
42 Correct 163 ms 22380 KB Output is correct
43 Runtime error 92 ms 34176 KB Execution killed with signal 11
44 Halted 0 ms 0 KB -