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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
#662173#5426. Drain the Water Tank1ockhartWA 0ms3796kbC++201.8kb2024-10-20 21:42:082024-10-20 21:42:08

Judging History

你现在查看的是最新测评结果

  • [2024-10-20 21:42:08]
  • 评测
  • 测评结果:WA
  • 用时:0ms
  • 内存:3796kb
  • [2024-10-20 21:42:08]
  • 提交

answer

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

using ll=long long;
using pll=pair<ll,ll> ;
#define FORLL(i,l,r) for(ll i=(l);i<=(r);i++)

const ll INF = 0x7fffffffffffffff;

#define x first
#define y second

template<typename T>
T chmax(T &a, T b){
    a = max(a,b);
}

void solve(){
    ll n;cin >> n;
    deque<pll> v(n);
    ll mxy=-INF,mxi=-1;
    FORLL(i,0,n-1){
        cin >> v[i].x >> v[i].y;
        if(mxy<v[i].y){
            mxi=i;
            mxy=v[i].y;
        }
    }
    while(mxi--){
        v.emplace_back(v.front());
        v.pop_front();
    }
    v.emplace_back(v.front());
    ll cnt=0;
    ll stat=0; // 0右上,1右下,2左上,3左下
    ll tx;
    FORLL(i,1,n){
        if(v[i].x>v[i-1].x&&v[i].y>v[i-1].y){ // 0右上
            if((stat==1||stat==5) || (stat == 3 &&v[i].x>=tx)){
                cnt++;
            }
            stat=0;
        }
        if(v[i].x>v[i-1].x&&v[i].y<v[i-1].y){ // 1右下
            stat=1;
        }
        if(v[i].x<v[i-1].x&&v[i].y>v[i-1].y){ // 2左上
            if((stat==1||stat==5) ||  (stat == 3 &&v[i].x>=tx)){
                cnt++;
            }
            stat=2;
        }
        if(v[i].x<v[i-1].x&&v[i].y<v[i-1].y){ // 3左下
            stat=3;
            tx = v[i].x;
        }
        if(v[i].x==v[i-1].x&&v[i].y>v[i-1].y){ // 4上
            if((stat==1||stat==5) || (stat == 3 &&v[i].x>=tx)){
                cnt++;
            }
            stat=4;
        }
        if(v[i].x==v[i-1].x&&v[i].y<v[i-1].y){ // 5下
            stat=5;
            tx = v[i].x;
        }
    }
    cout << cnt << endl;
}

int main(){
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    cout.tie(nullptr);
    ll T=1;
    // cin >> T;
    while (T--) solve();
    return 0;
}

詳細信息

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: 3584kb

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: 3524kb

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: 3536kb

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: 3468kb

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: 3728kb

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: 3792kb

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: 3520kb

input:

5
0 0
1 2
1 5
0 2
0 1

output:

1

result:

ok 1 number(s): "1"

Test #9:

score: 0
Accepted
time: 0ms
memory: 3560kb

input:

3
0 0
100 0
0 100

output:

1

result:

ok 1 number(s): "1"

Test #10:

score: 0
Accepted
time: 0ms
memory: 3728kb

input:

3
200 0
100 100
0 0

output:

1

result:

ok 1 number(s): "1"

Test #11:

score: 0
Accepted
time: 0ms
memory: 3532kb

input:

3
50 50
100 50
100 100

output:

1

result:

ok 1 number(s): "1"

Test #12:

score: 0
Accepted
time: 0ms
memory: 3504kb

input:

3
3 0
0 4
0 0

output:

1

result:

ok 1 number(s): "1"

Test #13:

score: 0
Accepted
time: 0ms
memory: 3596kb

input:

3
10000 10000
-10000 10000
10000 9999

output:

1

result:

ok 1 number(s): "1"

Test #14:

score: 0
Accepted
time: 0ms
memory: 3532kb

input:

3
10000 10000
-10000 10000
10000 9900

output:

1

result:

ok 1 number(s): "1"

Test #15:

score: 0
Accepted
time: 0ms
memory: 3472kb

input:

3
10000 10000
9999 10000
10000 -10000

output:

1

result:

ok 1 number(s): "1"

Test #16:

score: 0
Accepted
time: 0ms
memory: 3508kb

input:

3
0 0
200 0
100 173

output:

1

result:

ok 1 number(s): "1"

Test #17:

score: 0
Accepted
time: 0ms
memory: 3536kb

input:

3
0 0
200 0
100 1

output:

1

result:

ok 1 number(s): "1"

Test #18:

score: 0
Accepted
time: 0ms
memory: 3592kb

input:

3
-10000 -10000
10000 9999
9999 10000

output:

1

result:

ok 1 number(s): "1"

Test #19:

score: 0
Accepted
time: 0ms
memory: 3768kb

input:

4
10 10
20 10
20 20
10 20

output:

1

result:

ok 1 number(s): "1"

Test #20:

score: 0
Accepted
time: 0ms
memory: 3560kb

input:

4
-10000 -10000
10000 -10000
10000 10000
-10000 10000

output:

1

result:

ok 1 number(s): "1"

Test #21:

score: 0
Accepted
time: 0ms
memory: 3520kb

input:

4
100 0
200 100
100 200
0 100

output:

1

result:

ok 1 number(s): "1"

Test #22:

score: 0
Accepted
time: 0ms
memory: 3584kb

input:

4
0 1
100 0
101 100
1 101

output:

1

result:

ok 1 number(s): "1"

Test #23:

score: 0
Accepted
time: 0ms
memory: 3720kb

input:

4
0 0
100 0
100 50
0 50

output:

1

result:

ok 1 number(s): "1"

Test #24:

score: 0
Accepted
time: 0ms
memory: 3556kb

input:

4
0 0
50 0
50 100
0 100

output:

1

result:

ok 1 number(s): "1"

Test #25:

score: 0
Accepted
time: 0ms
memory: 3532kb

input:

4
0 10
10 0
100 90
90 100

output:

1

result:

ok 1 number(s): "1"

Test #26:

score: 0
Accepted
time: 0ms
memory: 3472kb

input:

8
0 100
100 0
250 0
350 100
350 250
250 350
100 350
0 250

output:

1

result:

ok 1 number(s): "1"

Test #27:

score: 0
Accepted
time: 0ms
memory: 3520kb

input:

6
0 50
10 0
70 0
80 10
70 50
50 80

output:

1

result:

ok 1 number(s): "1"

Test #28:

score: 0
Accepted
time: 0ms
memory: 3520kb

input:

4
0 100
0 0
100 0
20 20

output:

1

result:

ok 1 number(s): "1"

Test #29:

score: 0
Accepted
time: 0ms
memory: 3556kb

input:

4
0 100
55 55
100 0
100 100

output:

1

result:

ok 1 number(s): "1"

Test #30:

score: 0
Accepted
time: 0ms
memory: 3504kb

input:

8
0 0
100 0
100 20
40 20
40 40
100 40
100 60
0 60

output:

1

result:

ok 1 number(s): "1"

Test #31:

score: 0
Accepted
time: 0ms
memory: 3592kb

input:

12
0 0
90 0
90 30
40 30
40 40
90 40
90 50
0 50
0 20
50 20
50 10
0 10

output:

1

result:

ok 1 number(s): "1"

Test #32:

score: 0
Accepted
time: 0ms
memory: 3796kb

input:

12
0 0
100 0
100 100
10 100
10 110
200 110
200 60
101 60
101 40
210 40
210 120
0 120

output:

2

result:

ok 1 number(s): "2"

Test #33:

score: 0
Accepted
time: 0ms
memory: 3468kb

input:

10
1000 0
1100 0
1200 100
1220 200
1200 110
1100 10
1000 10
900 110
880 200
900 100

output:

1

result:

ok 1 number(s): "1"

Test #34:

score: -100
Wrong Answer
time: 0ms
memory: 3508kb

input:

16
0 0
60 0
60 70
0 70
0 20
40 20
40 50
20 50
20 40
30 40
30 30
10 30
10 60
50 60
50 10
0 10

output:

3

result:

wrong answer 1st numbers differ - expected: '2', found: '3'