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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
#575575#9310. Permutation Counting 4lfx-9877WA 82ms3876kbC++23988b2024-09-19 15:34:072024-09-19 15:34:07

Judging History

你现在查看的是最新测评结果

  • [2024-09-19 15:34:07]
  • 评测
  • 测评结果:WA
  • 用时:82ms
  • 内存:3876kb
  • [2024-09-19 15:34:07]
  • 提交

answer

#include <bits/stdc++.h>
#define int long long
#define ll __int128
#define endl '\n'
// #define x first 
// #define y second 
using namespace std;
const int N=1e6+10;
const int MOD=1e9+7;
const int INF=1e9; 
int n,m,q,cnt=0;
vector<int> v[N];
bool state[N];
void dfs(int pos,int fa)
{
    state[pos]=true;
    cnt++;
    for(int i=0;i<v[pos].size();i++)
    {
        if(v[pos][i]==fa||state[v[pos][i]]) continue;
        dfs(v[pos][i],pos);
    }
}
void solve()
{
    cin>>n;
    cnt=0;
    for(int i=1;i<=n;i++)
    {
        v[i].clear();
        state[i]=false;
    }
    for(int i=1;i<=n;i++)
    {
        int l,r;
        cin>>l>>r;
        v[l].push_back(r+1);
        v[r+1].push_back(l);
    }
    dfs(1,0);
    if(cnt<n) cout<<0<<endl;
    else cout<<1<<endl;
}
signed main()
{
    // init();
    ios_base::sync_with_stdio(0); 
    cin.tie(0);cout.tie(0);
    int t=1;
    cin>>t;
    while(t--)
    solve();
    return 0;
}

详细

Test #1:

score: 100
Accepted
time: 2ms
memory: 3620kb

input:

4
5
1 2
1 5
1 2
1 2
2 2
5
1 1
2 4
2 3
5 5
3 4
5
3 5
1 2
3 4
3 5
3 3
5
1 5
1 4
4 5
5 5
1 2

output:

0
1
0
0

result:

ok 4 tokens

Test #2:

score: -100
Wrong Answer
time: 82ms
memory: 3876kb

input:

66725
14
7 7
4 6
7 8
8 13
2 13
6 13
6 10
14 14
1 10
9 11
7 9
3 8
4 12
5 12
12
2 6
3 6
7 11
2 5
1 1
6 12
8 12
2 3
7 9
7 8
1 10
1 4
10
4 8
4 4
6 10
9 10
2 3
2 7
1 3
3 4
2 2
3 10
20
3 12
10 14
19 20
19 20
1 9
7 9
13 16
17 17
16 18
2 11
5 19
6 17
11 17
3 6
3 11
7 20
8 17
3 18
10 15
9 20
16
5 10
2 10
2 1...

output:

1
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
1
0
0
0
1
0
1
0
0
0
1
1
0
1
0
0
1
1
0
1
0
1
0
0
1
1
0
1
0
0
1
1
0
0
0
0
0
0
0
0
1
1
0
1
1
1
0
0
0
0
0
0
0
1
1
1
0
0
0
1
0
1
0
0
0
1
1
1
0
0
0
1
0
0
1
1
0
0
1
1
0
0
1
0
1
1
1
1
0
0
0
0
1
0
0
1
1
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
1
0
0
1
1
1
0
0
0
0
0
0
1
0
1
1
...

result:

wrong answer 2nd words differ - expected: '1', found: '0'