제출 #997269

#제출 시각아이디문제언어결과실행 시간메모리
997269AsymmetryAdvertisement 2 (JOI23_ho_t2)C++17
100 / 100
118 ms14088 KiB
#include <bits/stdc++.h> using namespace std; int main(){ ios_base::sync_with_stdio(0); cin.tie(0); int n; cin >> n; vector<pair<int, int> > v(n); for(int i = 0; i < n; i++){ int x, e; cin >> x >> e; v[i] = {x - e, x + e}; } sort(v.begin(), v.end(), [](auto x, auto y){ return x.first < y.first || (x.first == y.first && x.second > y.second); }); int l = 0, x = -1e9; for(auto [a, b] : v){ if(b > x) { l++; x = b; } } cout << l << '\n'; return 0; }
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