이 제출은 이전 버전의 oj.uz에서 채점하였습니다. 현재는 제출 당시와는 다른 서버에서 채점을 하기 때문에, 다시 제출하면 결과가 달라질 수도 있습니다.
#include<bits/stdc++.h>
#include<ext/pb_ds/assoc_container.hpp>
#include<ext/pb_ds/tree_policy.hpp>
using namespace std;
using namespace __gnu_pbds;
#ifdef ONPC
#include"debug.h"
#else
#define debug(...) 42
#endif
#define endl '\n'
#define ll long long
#define pii pair<int,int>
#define F first
#define S second
#define pb push_back
#define sz(a) (int)a.size()
#define all(a) a.begin(),a.end()
template<class T> bool ckmin(T& a, const T& b) { return b < a ? a = b, 1 : 0; }
template<class T> bool ckmax(T& a, const T& b) { return a < b ? a = b, 1 : 0; }
const int mod = 1e9 + 7;
const int MAXN = 1e6 + 15;
const int inf = 0x3f3f3f3f;
const ll INF = 0x3f3f3f3f3f3f3f3f;
int ans[MAXN];
template<class T> using order_set = tree<T, null_type, less<>, rb_tree_tag, tree_order_statistics_node_update>;
struct point {
int x, y;
};
int main(){
ios_base::sync_with_stdio(0);
cin.tie(0);
int n, q;
cin >> n >> q;
vector<point> a(n);
vector<ll> b(n);
for (int i = 0; i < n; i++){
cin >> a[i].x >> a[i].y;
b[i] = a[i].x + a[i].y;
}
sort(all(b));
vector<array<int, 3>> queries(q);
vector<array<int, 3>> queriesA(q);
vector<array<int, 3>> queriesB(q);
for (int i = 0; i < q; i++){
cin >> queries[i][0] >> queries[i][1] >> queries[i][2];
queries[i][2] = max(queries[i][2], queries[i][0] + queries[i][1]);
queriesA[i] = {queries[i][2], queries[i][0], i};
queriesB[i] = {queries[i][2], queries[i][1], i};
ans[i] += lower_bound(all(b), queries[i][2]) - b.begin();
}
sort(all(queriesA), greater<>());
sort(all(queriesB), greater<>());
sort(all(a), [](point lh, point rh){
return lh.x + lh.y > rh.x + rh.y;
});
int p = 0;
order_set<pii> st;
for (int i = 0; i < q; i++){// solve for b
while (p < n && a[p].x + a[p].y > queriesA[i][0]){
st.insert({a[p].x, p});
p++;
}
ans[queriesA[i][2]] += st.order_of_key({queriesA[i][1], -1});
}
st.clear();
p = 0;
for (int i = 0; i < q; i++){// solve for b
while (p < n && a[p].x + a[p].y > queriesB[i][0]){
st.insert({a[p].y, p});
p++;
}
ans[queriesB[i][2]] += st.order_of_key({queriesB[i][1], -1});
}
for (int i = 0; i < q; i++){
cout << n - ans[i] << endl;
}
}
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