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 |
|---|---|---|---|---|---|---|---|---|---|
| #321845 | #8215. Isomorphic Delight | yyyyxh | WA | 0ms | 3584kb | C++23 | 846b | 2024-02-05 18:00:25 | 2024-02-05 18:00:25 |
Judging History
answer
#include <cstdio>
using namespace std;
const int N=1000003;
int n;
int su[N],sv[N],tp;
void add(int u,int v){++tp;su[tp]=u;sv[tp]=v;}
int main(){
scanf("%d",&n);
if(n==1){
puts("YES");
puts("0");
return 0;
}
if(n<=5){
puts("NO");
return 0;
}
if(n==6){
puts("YES");
puts("6");
puts("1 2");
puts("2 3");
puts("1 3");
puts("3 4");
puts("2 5");
puts("5 6");
return 0;
}
if(n==7){
puts("YES");
printf("%d\n",n-1);
for(int i=2;i<n;++i) printf("%d %d\n",i-1,i);
printf("3 %d\n",n);
return 0;
}
puts("YES");
--n;
for(int i=7;i<=n;++i)
if(i>n) break;
else{
for(int j=2;j<i;++j) add(n-i+j-1,n-i+j);
add(n-3,n);
n-=i;
}
int t=n+1;
while(n) add(n--,t);
printf("%d\n",tp);
for(int i=1;i<=tp;++i) printf("%d %d\n",su[i],sv[i]);
return 0;
}
详细
Test #1:
score: 100
Accepted
time: 0ms
memory: 1408kb
input:
1
output:
YES 0
result:
ok Everything ok
Test #2:
score: 0
Accepted
time: 0ms
memory: 1492kb
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: 1516kb
input:
4
output:
NO
result:
ok Everything ok
Test #4:
score: 0
Accepted
time: 0ms
memory: 1400kb
input:
2
output:
NO
result:
ok Everything ok
Test #5:
score: 0
Accepted
time: 0ms
memory: 1480kb
input:
3
output:
NO
result:
ok Everything ok
Test #6:
score: 0
Accepted
time: 0ms
memory: 1336kb
input:
5
output:
NO
result:
ok Everything ok
Test #7:
score: 0
Accepted
time: 0ms
memory: 1532kb
input:
7
output:
YES 6 1 2 2 3 3 4 4 5 5 6 3 7
result:
ok Everything ok
Test #8:
score: 0
Accepted
time: 0ms
memory: 3580kb
input:
8
output:
YES 6 1 2 2 3 3 4 4 5 5 6 4 7
result:
ok Everything ok
Test #9:
score: 0
Accepted
time: 0ms
memory: 3580kb
input:
9
output:
YES 7 2 3 3 4 4 5 5 6 6 7 5 8 1 2
result:
ok Everything ok
Test #10:
score: -100
Wrong Answer
time: 0ms
memory: 3584kb
input:
10
output:
YES 8 3 4 4 5 5 6 6 7 7 8 6 9 2 3 1 3
result:
wrong answer Not asymmetric