Submission #830511

#	Time	Username	Problem	Language	Result	Execution time	Memory
830511		vjudge1	Lightning Rod (NOI18_lightningrod)	C++17	11 / 100	1071 ms	78292 KiB

Main

#include<bits/stdc++.h>
#define ll long long
#define fi first
#define se second
using namespace std;
int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    int N;
    cin >> N;
    vector<int>X(N+1);
    vector<int>Y(N+1);
    int lrd1=0;
    bool sub1 = true;
    for(int i=1; i<=N; i++) {
        cin >> X[i] >> Y[i];
        if(Y[i]!=1) sub1=false;
        if(i>1 && X[i]!=X[i-1]) lrd1++;
    }
    lrd1++;
    if(sub1) {
        cout << lrd1 << endl;
        return 0;
    } else
    if(N==2) {
        if((abs(X[1]-X[2]) <= Y[1]-Y[2]) || (abs(X[2]-X[1]) <= Y[2]-Y[1])) {
            cout << "1" << endl;
        } else {
            cout << "2" << endl;
        }
        return 0;
    }
    return 0;
}

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