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Submission #743079

# Submission time Handle Problem Language Result Execution time Memory
743079 2023-05-17T07:46:09 Z vjudge1 Lightning Rod (NOI18_lightningrod) C++17
4 / 100
 1448 ms 2668 KB 
#include<bits/stdc++.h>
using namespace std;

#define iii tuple<int,int,int>
int n;
int cnt = 0;
int main()
{
    ios_base::sync_with_stdio(0); cin.tie(0);
    cin >> n;
    int recent;
    cnt = n;
    for(int i=1;i<=n;++i)
    {
        int x,y;
        cin >> x >> y;
        if(i == 1) continue;
        if(y == 1 && recent == 0) --cnt;
        if(y == 0 && recent == 1) --cnt;
        recent = y;
    }
    cout << cnt;
    return 0;
}

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1448 ms 2668 KB Output is correct
2 Correct 1391 ms 1128 KB Output is correct
3 Correct 1305 ms 1460 KB Output is correct

Subtask #2
0 / 7.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 12.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 21.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 26.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 1356 ms 1872 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #7
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1448 ms 2668 KB Output is correct
2 Correct 1391 ms 1128 KB Output is correct
3 Correct 1305 ms 1460 KB Output is correct
4 Incorrect 1 ms 212 KB Output isn't correct
5 Halted 0 ms 0 KB -