QOJ.ac
QOJ
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 |
---|---|---|---|---|---|---|---|---|---|
#571586 | #9310. Permutation Counting 4 | susanzhishen | WA | 84ms | 3612kb | C++20 | 895b | 2024-09-18 00:50:59 | 2024-09-18 00:51:00 |
Judging History
answer
#include<bits/stdc++.h>
#define int long long
#define double long double
#define x first
#define y second
using namespace std;
typedef long long LL;
typedef long long ll;
typedef pair<int,int> PII;
const int N=1e6+10;
const int M=1e3+10;
int mod=1e9+7;
int a[N];
int root[N];
int find(int x){
if(root[x]==x) return x;
return root[x]=find(root[x]);
}
void solve(){
int n;cin>>n;
for(int i=1;i<=n;i++) root[i]=i;
int f=0;
for(int i=1;i<=n;i++){
int l,r;cin>>l>>r;
if(find(l)!=find(r+1)){
root[find(l)]=find(r+1);
}else{
f++;
}
}
if(f){
cout<<0<<"\n";
return ;
}
cout<<"1\n";
}
signed main(){
ios::sync_with_stdio(false);
cin.tie(nullptr),cout.tie(nullptr);
int _;
_=1;
cin>>_;
while(_--){
solve();
}
}
詳細信息
Test #1:
score: 100
Accepted
time: 0ms
memory: 3600kb
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: 84ms
memory: 3612kb
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 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 1 0 0 1 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 0 1 0 0 0 1 0 1 0 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 1 0 0 1 0 0 0 1 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1 0 0 0 ...
result:
wrong answer 5th words differ - expected: '1', found: '0'