///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(a[i].x);
vy.push_back(a[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);
| ~^~~~~~~~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
7 ms |
9820 KB |
Output is correct |
| 2 |
Correct |
6 ms |
9820 KB |
Output is correct |
| 3 |
Correct |
6 ms |
9832 KB |
Output is correct |
| 4 |
Correct |
8 ms |
9820 KB |
Output is correct |
| 5 |
Correct |
6 ms |
9816 KB |
Output is correct |
| 6 |
Correct |
6 ms |
9820 KB |
Output is correct |
| 7 |
Incorrect |
14 ms |
10344 KB |
Output isn't correct |
| 8 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
1131 ms |
69188 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
1131 ms |
69188 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
7 ms |
9820 KB |
Output is correct |
| 2 |
Correct |
6 ms |
9820 KB |
Output is correct |
| 3 |
Correct |
6 ms |
9832 KB |
Output is correct |
| 4 |
Correct |
8 ms |
9820 KB |
Output is correct |
| 5 |
Correct |
6 ms |
9816 KB |
Output is correct |
| 6 |
Correct |
6 ms |
9820 KB |
Output is correct |
| 7 |
Incorrect |
14 ms |
10344 KB |
Output isn't correct |
| 8 |
Halted |
0 ms |
0 KB |
- |
