Submission #787289

#	Time	Username	Problem	Language	Result	Execution time	Memory
787289		ddeadeye	Advertisement 2 (JOI23_ho_t2)	C++14	0 / 100	31 ms	3772 KiB

Main

#include <bits/stdc++.h>
using namespace std;
using ll = long long;
#define fi first
#define si second
#define ar array
#define pb push_back
typedef pair<int,int> pi;
typedef tuple<int,int,int> ti;  
typedef vector<int> vi;
template<typename T> bool chmin(T &a, T b){return (b < a) ? a = b, 1 : 0;}
template<typename T> bool chmax(T &a, T b){return (b > a) ? a = b, 1 : 0;}
void debug_out() {cerr<<endl;}
template <typename Head, typename... Tail>
void debug_out(Head _H, Tail... _T) {cerr<<" "<<to_string(_H);debug_out(_T...);}
#define debug(...) cerr<<"["<<#__VA_ARGS__<<"]:",debug_out(__VA_ARGS__)
int n;
vector<pi> rr;
stack<pi> st;

int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);cout.tie(0);
    cin.exceptions(ios::badbit|ios::failbit);
    cin >> n;
    for (int i = 1; i <= n; ++i) {
        int x,e; cin >> x >> e;
        rr.pb({x-e, x+e});
    }
    sort(rr.begin(), rr.end());
    for (auto [s,e]: rr) {
        while (st.size() && st.top().si < e && st.top().fi >= s) st.pop();
        if (st.size()) {
            if (e > st.top().si) st.push({st.top().si, e});
        } else st.push({s, e});
    }
    cout << (int)st.size();
    return 0;
}

Compilation message (stderr)

Main.cpp: In function 'int main()':
Main.cpp:31:15: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   31 |     for (auto [s,e]: rr) {
      |               ^

• Subtask 1: 0 / 10
• Subtask 2: 0 / 23
• Subtask 3: 0 / 36
• Subtask 4: 0 / 31