oj.uz

Submission #692657

# Submission time Handle Problem Language Result Execution time Memory
692657 2023-02-02T03:56:50 Z zeroesandones Lightning Rod (NOI18_lightningrod) C++17
4 / 100
 1349 ms 262144 KB 
#include "bits/stdc++.h"
using namespace std;

typedef long long ll;
typedef long double ld;
typedef vector<ll> vi;
typedef pair<ll, ll> pi;

#define FOR(i, j, k) for (ll i = j; i < (ll) k; ++i)
#define FORD(i, j, k) for (ll i = j; i >= (ll) k; --i)
#define nl "\n"
#define sp " "

#define all(x) (x).begin(), (x).end()
#define sc second
#define fr first
#define pb emplace_back

void solve()
{
    ll n;
    cin >> n;

    ll x[n], y[n];
    FOR(i, 0, n) {
        cin >> x[i] >> y[i];
    }

    if(y[0] < y[1]) {
        swap(y[0], y[1]);
        swap(x[0], x[1]);
    }

    ll cnt = 1;
    FOR(i, 1, n) {
        if(x[i] != x[i - 1])
            ++cnt;
    }

    cout << cnt << nl;
}

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

    ll t = 1;
    // cin >> t;
    while (t--)
    {
        solve();
    }
}

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1264 ms 155516 KB Output is correct
2 Correct 1349 ms 262144 KB Output is correct
3 Correct 1324 ms 256960 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 1254 ms 156536 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #7
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1264 ms 155516 KB Output is correct
2 Correct 1349 ms 262144 KB Output is correct
3 Correct 1324 ms 256960 KB Output is correct
4 Incorrect 1 ms 212 KB Output isn't correct
5 Halted 0 ms 0 KB -