QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#350105 | #8215. Isomorphic Delight | ucup-team1525# | WA | 0ms | 3912kb | C++17 | 1.2kb | 2024-03-10 14:22:54 | 2024-03-10 14:22:55 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
const int N=1e6;
int n;
struct E{
int u,v;
E(int u=0,int v=0):u(u),v(v){}
};
vector<E> e;
void get(int x,int id){
if(x==1) return;
e.push_back(E(id,id+1));
e.push_back(E(id,id+2));
e.push_back(E(id+2,id+3));
int u=id,v=id+4; x-=4;
while(x){
e.push_back(E(u,v));
u=v; v=v+1;
x--;
}
}
int main(){
scanf("%d",&n);
if(n<=6){
if(n==1){
puts("YES");
puts("0");
return 0;
}
if(n<6){
puts("NO");
return 0;
}
if(n==6){
puts("YES");
puts("6");
puts("1 2\n2 3\n1 3\n3 4\n2 5\n5 6");
return 0;
}
return 0;
}
vector<int> p;
int s=1,lst=1;
for(int i=7;;i++){
if(s+i<n){
p.push_back(lst);
lst=i;
s+=i;
}
else{
p.push_back(lst+n-s);
break;
}
}
puts("YES");
for(int i=0,j=1;i<p.size();i++){
get(p[i],j);
j+=p[i];
}
printf("%d\n",e.size());
for(auto it:e)
printf("%d %d\n",it.u,it.v);
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 0ms
memory: 3656kb
input:
1
output:
YES 0
result:
ok Everything ok
Test #2:
score: 0
Accepted
time: 0ms
memory: 3600kb
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: 3608kb
input:
4
output:
NO
result:
ok Everything ok
Test #4:
score: 0
Accepted
time: 0ms
memory: 3912kb
input:
2
output:
NO
result:
ok Everything ok
Test #5:
score: 0
Accepted
time: 0ms
memory: 3608kb
input:
3
output:
NO
result:
ok Everything ok
Test #6:
score: 0
Accepted
time: 0ms
memory: 3580kb
input:
5
output:
NO
result:
ok Everything ok
Test #7:
score: 0
Accepted
time: 0ms
memory: 3768kb
input:
7
output:
YES 6 1 2 1 3 3 4 1 5 5 6 6 7
result:
ok Everything ok
Test #8:
score: -100
Wrong Answer
time: 0ms
memory: 3752kb
input:
8
output:
YES 7 1 2 1 3 3 4 1 5 5 6 6 7 7 8
result:
wrong answer contestant's solution is worse (more edges) than jury's