Submission #550921

#	Time	Username	Problem	Language	Result	Execution time	Memory
550921		Belgutei	Lightning Rod (NOI18_lightningrod)	C++17	4 / 100	1436 ms	39920 KiB

Main

#include<bits/stdc++.h>
 
using namespace std;
 
#define ll long long
#define ff first
#define ss second
#define pb push_back
#define mk make_pair
#define IOS ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
 
int n;
int a,b;
map<int,int> mp;
int mx = -1;
int ans;
 
stack<int> s;
 
int main(){
    IOS
    cin >> n;
    for(int i = 0; i < n; i++){
        cin >> a >> b;
        int val = a - b;
        while(s.size()>0){
            if(s.top() >= val){
                s.pop();
            }
            else break;
        }
        s.push(val);
    }
 
    cout << s.size();
}

• Subtask 1: 4 / 4
• Subtask 2: 0 / 7
• Subtask 3: 0 / 12
• Subtask 4: 0 / 21
• Subtask 5: 0 / 26
• Subtask 6: 0 / 10
• Subtask 7: 0 / 20