Submission #1311151

#	Time	Username	Problem	Language	Result	Execution time	Memory
1311151		aryan	Lightning Rod (NOI18_lightningrod)	C++20	0 / 100	1103 ms	155408 KiB

Main

#include<bits/stdc++.h>
using namespace std;

using i64 = long long;


int main(){
        
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);

    int n;
    cin >> n;
    set<int> st;
    for(int i = 0;i < n;i++){
        int x,y;
        cin >> x >> y;
        assert(y == 1);
        st.insert(x);
    }
    cout << (int) st.size() << '\n';

    return 0;
}

• Subtask 1: 0 / 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