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ID | 题目 | 提交者 | 结果 | 用时 | 内存 | 语言 | 文件大小 | 提交时间 | 测评时间 |
---|---|---|---|---|---|---|---|---|---|
#717443 | #5426. Drain the Water Tank | XiaoYang3 | WA | 0ms | 3804kb | C++23 | 981b | 2024-11-06 17:58:45 | 2024-11-06 17:58:51 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using pii = pair<int, int>;
ll n, m, k, ans;
const int N = 4e6 + 5;
const int P = 1e9 + 7;
void solve() {
cin >> n;
vector<pii> ve(n + 2);
for (int i = 0; i < n; i++) {
cin >> ve[i].first >> ve[i].second;
}
for (int i = 0; i < n; i++) {
int pre = (i + n - 1) % n;
if (ve[pre].second <= ve[i].second) {
continue;
}
int j = (i + 1) % n;
while (j != i && ve[i].second == ve[j].second) {
j = (j + 1) % n;
}
if (ve[i].second > ve[j].second) {
continue;
}
if (ve[i].first < ve[j].first || ve[pre].first < ve[i].first) {
ans++;
}
}
cout << ans << '\n';
}
int main() {
ios::sync_with_stdio(0);
cin.tie(0);
int _ = 1;
// cin >> _;
while (_--) {
solve();
}
return 0;
}
详细
Test #1:
score: 100
Accepted
time: 0ms
memory: 3588kb
input:
6 0 0 1 1 2 1 3 0 3 2 0 2
output:
2
result:
ok 1 number(s): "2"
Test #2:
score: 0
Accepted
time: 0ms
memory: 3536kb
input:
8 4 4 0 4 0 2 1 2 2 2 2 0 3 0 4 0
output:
1
result:
ok 1 number(s): "1"
Test #3:
score: 0
Accepted
time: 0ms
memory: 3520kb
input:
7 1 0 3 4 0 3 1 2 2 3 1 1 0 2
output:
2
result:
ok 1 number(s): "2"
Test #4:
score: 0
Accepted
time: 0ms
memory: 3804kb
input:
6 0 0 2 0 1 1 4 1 5 0 3 4
output:
2
result:
ok 1 number(s): "2"
Test #5:
score: 0
Accepted
time: 0ms
memory: 3516kb
input:
8 0 0 1 0 3 -1 3 0 1 1 4 1 5 0 3 4
output:
2
result:
ok 1 number(s): "2"
Test #6:
score: 0
Accepted
time: 0ms
memory: 3744kb
input:
5 0 0 170 0 140 30 60 30 0 70
output:
1
result:
ok 1 number(s): "1"
Test #7:
score: 0
Accepted
time: 0ms
memory: 3548kb
input:
5 0 0 170 0 140 30 60 30 0 100
output:
1
result:
ok 1 number(s): "1"
Test #8:
score: 0
Accepted
time: 0ms
memory: 3544kb
input:
5 0 0 1 2 1 5 0 2 0 1
output:
1
result:
ok 1 number(s): "1"
Test #9:
score: -100
Wrong Answer
time: 0ms
memory: 3544kb
input:
3 0 0 100 0 0 100
output:
0
result:
wrong answer 1st numbers differ - expected: '1', found: '0'