/*
#pragma GCC target ("avx2")
#pragma GCC optimization ("O3")
#pragma GCC optimization ("unroll-loops")
*/
#include<bits/stdc++.h>
//#include <ext/pb_ds/assoc_container.hpp>
//#include <ext/pb_ds/tree_policy.hpp>
//using namespace __gnu_pbds;
using namespace std;
typedef long double ld;
typedef long long ll;
typedef unsigned long long ull;
typedef vector<int>vi;
typedef vector<vector<int>>vvi;
typedef vector<ll>vl;
typedef vector<vl> vvl;
typedef pair<int,int>pi;
typedef pair<ll,ll> pl;
typedef vector<pl> vpl;
typedef vector<ld> vld;
typedef pair<ld,ld> pld;
typedef vector<pi> vpi;
//typedef tree<ll, null_type, less_equal<ll>,rb_tree_tag,tree_order_statistics_node_update> ordered_set;
template<typename T> ostream& operator<<(ostream& os, vector<T>& a){os<<"[";for(int i=0; i<ll(a.size()); i++){os << a[i] << ((i!=ll(a.size()-1)?" ":""));}os << "]\n"; return os;}
#define all(x) x.begin(),x.end()
#define YES out("YES")
#define NO out("NO")
#define out(x){cout << x << "\n"; return;}
#define outfl(x){cout << x << endl;return;}
#define GLHF ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL)
#define print(x){for(auto ait:x) cout << ait << " "; cout << "\n";}
#define pb push_back
#define umap unordered_map
template<typename T1, typename T2> istream& operator>>(istream& is, pair<T1, T2>& p){is >> p.first >> p.second;return is;}
template<typename T1, typename T2> ostream& operator<<(ostream& os, pair<T1, T2>& p){os <<"" << p.first << " " << p.second << ""; return os;}
void usaco(string taskname){
string fin = taskname + ".in";
string fout = taskname + ".out";
const char* FIN = fin.c_str();
const char* FOUT = fout.c_str();
freopen(FIN, "r", stdin);
freopen(FOUT, "w", stdout);
}
template<typename T>
void read(vector<T>& v){
int n=v.size();
for(int i=0; i<n; i++)
cin >> v[i];
}
template<typename T>
vector<T>UNQ(vector<T>a){
vector<T>ans;
for(T t:a)
if(ans.empty() || t!=ans.back())
ans.push_back(t);
return ans;
}
void solve();
int main(){
GLHF;
int t=1;
//cin >> t;
while(t--)
solve();
}
struct Seg{
int l,r,m,sum=0;
Seg* lp=0,*rp=0;
Seg(int l,int r):l(l),r(r),m((l+r)/2){}
void expand(){
if(!lp)lp=new Seg(l,m);
if(!rp)rp=new Seg(m,r);
}
void upd(int i,int v=1){
sum+=v;
if(l+1==r)return;
expand();
if(i<m)
lp->upd(i,v);
else
rp->upd(i,v);
sum=lp->sum+rp->sum;
}
int qur(int a,int b){
if(r<=a || b<=l)return 0;
else if(a<=l && r<=b)return sum;
expand();
return lp->qur(a,b)+rp->qur(a,b);
}
};
struct Seg2{
Seg2 *lp=0,*rp=0;
Seg* data=0;
int l,r,m;
Seg2(int l,int r):l(l),r(r),m((l+r)/2){
data=new Seg(0,1e5+1);
}
void expand(){
if(!lp)lp=new Seg2(l,m);
if(!rp)rp=new Seg2(m,r);
}
void upd(int i,int j){
data->upd(j);
if(l+1==r)return;
expand();
if(i<m)lp->upd(i,j);
else rp->upd(i,j);
int s=data->qur(j,j+1);
int ls=lp->data->qur(j,j+1);
int rs=rp->data->qur(j,j+1);
data->upd(j,ls+rs-s);
}
int qur(int a1,int b1,int a2,int b2){
if(r<=a1 || l>=b1)return 0;
else if(a1<=l && r<=b1)
return data->qur(a2,b2);
expand();
return lp->qur(a1,b1,a2,b2)+rp->qur(a1,b1,a2,b2);
}
};
void solve() {
int n,q;
cin >> n >> q;
vpi a(n);
read(a);
sort(all(a),[&](pi p1,pi p2){
return p1.first+p1.second>p2.first+p2.second;
});
vvi queries(q,vi(4));
for(int i=0; i<q; i++){
cin >> queries[i][0] >> queries[i][1] >> queries[i][2];
queries[i][3]=i;
}
sort(all(queries),[&](vi v1,vi v2){
return vi({v1[2],v1[0],v1[1]})>vi({v2[2],v2[0],v2[1]});
});
vi ans(q);
Seg2 ST(0,1e5 +1);
vpi has;
for(int i=0,j=0; i<q; i++){
int x=queries[i][0],y=queries[i][1],z=queries[i][2];
while(j<n && a[j].first+a[j].second>=z) {
ST.upd(a[j].first,a[j].second);
j++;
}
int ix=queries[i][3];
ans[ix]=ST.qur(x,1e5 +1,y,1e5 +1);
}
for(int x:ans)cout << x << "\n";
}
Compilation message
examination.cpp: In function 'void usaco(std::string)':
examination.cpp:47:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
47 | freopen(FIN, "r", stdin);
| ~~~~~~~^~~~~~~~~~~~~~~~~
examination.cpp:48:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
48 | freopen(FOUT, "w", stdout);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
568 KB |
Output is correct |
| 2 |
Correct |
1 ms |
588 KB |
Output is correct |
| 3 |
Correct |
1 ms |
568 KB |
Output is correct |
| 4 |
Incorrect |
1 ms |
332 KB |
Output isn't correct |
| 5 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
1977 ms |
1048580 KB |
Execution killed with signal 9 |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
1977 ms |
1048580 KB |
Execution killed with signal 9 |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
568 KB |
Output is correct |
| 2 |
Correct |
1 ms |
588 KB |
Output is correct |
| 3 |
Correct |
1 ms |
568 KB |
Output is correct |
| 4 |
Incorrect |
1 ms |
332 KB |
Output isn't correct |
| 5 |
Halted |
0 ms |
0 KB |
- |
