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 |
|---|---|---|---|---|---|---|---|---|---|
| #715050 | #8215. Isomorphic Delight | ucup-team5071# | WA | 0ms | 3848kb | C++20 | 1.1kb | 2024-11-06 10:07:34 | 2024-11-06 10:07:36 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
void no(){
cout<<"NO"<<endl;
exit(0);
}
int main()
{
int n;cin>>n;
vector<pair<int,int>> ans;
auto write = [&](){
cout<<"YES\n"<<ans.size()<<"\n";
for(auto [x,y]:ans)cout<<x<<" "<<y<<"\n";
exit(0);
};
auto add = [&](int l,int r){
ans.emplace_back(l,l+1);
ans.emplace_back(l+1,l+2);
ans.emplace_back(l+2,l+3);
ans.emplace_back(l+2,l+4);
for(int i=l+5;i<=r;i++)ans.emplace_back(i,i-1);
};
if(n>=2&&n<=5)no();
if(n==6){
ans.emplace_back(1,2);
ans.emplace_back(2,3);
ans.emplace_back(1,3);
ans.emplace_back(3,4);
ans.emplace_back(2,5);
ans.emplace_back(5,6);
}
if(n==7){
add(1,7);
}
if(n>7){
n--;
int now=0;
for(int i=7;;i++){
if(now+i<=n&&(n-(now+i))>=(i+1)){
add(now+1,now+i);
now+=i;
}
else {
add(now+1,n);break;
}
}
}
write();
}
詳細信息
Test #1:
score: 100
Accepted
time: 0ms
memory: 3620kb
input:
1
output:
YES 0
result:
ok Everything ok
Test #2:
score: 0
Accepted
time: 0ms
memory: 3612kb
input:
6
output:
YES 6 1 2 2 3 1 3 3 4 2 5 5 6
result:
ok Everything ok
Test #3:
score: 0
Accepted
time: 0ms
memory: 3524kb
input:
4
output:
NO
result:
ok Everything ok
Test #4:
score: 0
Accepted
time: 0ms
memory: 3836kb
input:
2
output:
NO
result:
ok Everything ok
Test #5:
score: 0
Accepted
time: 0ms
memory: 3616kb
input:
3
output:
NO
result:
ok Everything ok
Test #6:
score: 0
Accepted
time: 0ms
memory: 3552kb
input:
5
output:
NO
result:
ok Everything ok
Test #7:
score: 0
Accepted
time: 0ms
memory: 3616kb
input:
7
output:
YES 6 1 2 2 3 3 4 3 5 6 5 7 6
result:
ok Everything ok
Test #8:
score: 0
Accepted
time: 0ms
memory: 3620kb
input:
8
output:
YES 6 1 2 2 3 3 4 3 5 6 5 7 6
result:
ok Everything ok
Test #9:
score: 0
Accepted
time: 0ms
memory: 3848kb
input:
9
output:
YES 7 1 2 2 3 3 4 3 5 6 5 7 6 8 7
result:
ok Everything ok
Test #10:
score: 0
Accepted
time: 0ms
memory: 3836kb
input:
10
output:
YES 8 1 2 2 3 3 4 3 5 6 5 7 6 8 7 9 8
result:
ok Everything ok
Test #11:
score: 0
Accepted
time: 0ms
memory: 3500kb
input:
11
output:
YES 9 1 2 2 3 3 4 3 5 6 5 7 6 8 7 9 8 10 9
result:
ok Everything ok
Test #12:
score: 0
Accepted
time: 0ms
memory: 3552kb
input:
12
output:
YES 10 1 2 2 3 3 4 3 5 6 5 7 6 8 7 9 8 10 9 11 10
result:
ok Everything ok
Test #13:
score: 0
Accepted
time: 0ms
memory: 3592kb
input:
13
output:
YES 11 1 2 2 3 3 4 3 5 6 5 7 6 8 7 9 8 10 9 11 10 12 11
result:
ok Everything ok
Test #14:
score: 0
Accepted
time: 0ms
memory: 3556kb
input:
14
output:
YES 12 1 2 2 3 3 4 3 5 6 5 7 6 8 7 9 8 10 9 11 10 12 11 13 12
result:
ok Everything ok
Test #15:
score: 0
Accepted
time: 0ms
memory: 3496kb
input:
15
output:
YES 13 1 2 2 3 3 4 3 5 6 5 7 6 8 7 9 8 10 9 11 10 12 11 13 12 14 13
result:
ok Everything ok
Test #16:
score: 0
Accepted
time: 0ms
memory: 3848kb
input:
16
output:
YES 13 1 2 2 3 3 4 3 5 6 5 7 6 8 9 9 10 10 11 10 12 13 12 14 13 15 14
result:
ok Everything ok
Test #17:
score: 0
Accepted
time: 0ms
memory: 3608kb
input:
17
output:
YES 14 1 2 2 3 3 4 3 5 6 5 7 6 8 9 9 10 10 11 10 12 13 12 14 13 15 14 16 15
result:
ok Everything ok
Test #18:
score: 0
Accepted
time: 0ms
memory: 3496kb
input:
18
output:
YES 15 1 2 2 3 3 4 3 5 6 5 7 6 8 9 9 10 10 11 10 12 13 12 14 13 15 14 16 15 17 16
result:
ok Everything ok
Test #19:
score: 0
Accepted
time: 0ms
memory: 3608kb
input:
19
output:
YES 16 1 2 2 3 3 4 3 5 6 5 7 6 8 9 9 10 10 11 10 12 13 12 14 13 15 14 16 15 17 16 18 17
result:
ok Everything ok
Test #20:
score: -100
Wrong Answer
time: 0ms
memory: 3556kb
input:
598
output:
YES 569 1 2 2 3 3 4 3 5 6 5 7 6 8 9 9 10 10 11 10 12 13 12 14 13 15 14 16 17 17 18 18 19 18 20 21 20 22 21 23 22 24 23 25 26 26 27 27 28 27 29 30 29 31 30 32 31 33 32 34 33 35 36 36 37 37 38 37 39 40 39 41 40 42 41 43 42 44 43 45 44 46 47 47 48 48 49 48 50 51 50 52 51 53 52 54 53 55 54 56 55 57 56 5...
result:
wrong answer contestant's solution is worse (more edges) than jury's