| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 2681 |
2013-07-30T15:02:10 Z |
gs13068 |
간선 파괴 (GA5_destroy) |
C++ |
|
2164 ms |
7684 KB |
#include<cstdio>
#include<vector>
#define BUCKET_SIZE 400
int s[200000];
int e[200000];
struct edge
{
int s;
int e;
} temp;
std::vector<edge> pre[500];
std::vector<edge> suf[500];
int parent[1000];
int height[1000];
inline int root(int x)
{
return parent[x]==x?x:parent[x]=root(parent[x]);
}
inline void combine(int a,int b)
{
a=root(a);
b=root(b);
if(a==b)return;
if(height[a]<height[b])parent[a]=b;
else parent[b]=a;
if(height[a]==height[b])height[b]++;
}
int main()
{
int i,j,k,n,m,l,r,q;
scanf("%d%d",&n,&m);
for(i=0;i<m;i++)
{
scanf("%d%d",&s[i],&e[i]);
s[i]--;e[i]--;
}
for(i=0;i<n;i++)
{
parent[i]=i;
height[i]=0;
}
for(i=0;i<m;i++)
{
combine(s[i],e[i]);
if(i%BUCKET_SIZE==BUCKET_SIZE-1)
{
for(j=0;j<n;j++)if(parent[j]!=j)
{
temp.s=j;
temp.e=parent[j];
pre[i/BUCKET_SIZE].push_back(temp);
}
}
}
for(i=0;i<n;i++)
{
parent[i]=i;
height[i]=0;
}
for(i=m-1;i>=0;i--)
{
combine(s[i],e[i]);
if(!(i%BUCKET_SIZE))
{
for(j=0;j<n;j++)if(parent[j]!=j)
{
temp.s=j;
temp.e=parent[j];
suf[i/BUCKET_SIZE].push_back(temp);
}
}
}
scanf("%d",&q);
for(i=0;i<q;i++)
{
scanf("%d%d",&l,&r);
l--;r--;
for(j=0;j<n;j++)
{
parent[j]=j;
height[j]=0;
}
j=l/BUCKET_SIZE-1;
if(j>=0)for(k=0;k<pre[j].size();k++)combine(pre[j][k].s,pre[j][k].e);
for(k=l/BUCKET_SIZE*BUCKET_SIZE;k<l;k++)combine(s[k],e[k]);
j=r/BUCKET_SIZE+1;
for(k=0;k<suf[j].size();k++)combine(suf[j][k].s,suf[j][k].e);
for(k=r+1;k<j*BUCKET_SIZE;k++)combine(s[k],e[k]);
k=0;
for(j=0;j<n;j++)if(parent[j]==j)k++;
printf("%d\n",k);
}
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
2804 KB |
Output is correct |
| 2 |
Correct |
0 ms |
2804 KB |
Output is correct |
| 3 |
Correct |
0 ms |
2804 KB |
Output is correct |
| 4 |
Correct |
0 ms |
2804 KB |
Output is correct |
| 5 |
Correct |
0 ms |
2804 KB |
Output is correct |
| 6 |
Correct |
0 ms |
2804 KB |
Output is correct |
| 7 |
Correct |
0 ms |
2804 KB |
Output is correct |
| 8 |
Correct |
0 ms |
2804 KB |
Output is correct |
| 9 |
Correct |
0 ms |
2804 KB |
Output is correct |
| 10 |
Correct |
0 ms |
2804 KB |
Output is correct |
| 11 |
Correct |
0 ms |
2804 KB |
Output is correct |
| 12 |
Correct |
0 ms |
2804 KB |
Output is correct |
| 13 |
Correct |
0 ms |
2804 KB |
Output is correct |
| 14 |
Correct |
0 ms |
2804 KB |
Output is correct |
| 15 |
Correct |
0 ms |
2804 KB |
Output is correct |
| 16 |
Correct |
0 ms |
2804 KB |
Output is correct |
| 17 |
Correct |
0 ms |
2804 KB |
Output is correct |
| 18 |
Correct |
0 ms |
2804 KB |
Output is correct |
| 19 |
Correct |
0 ms |
2804 KB |
Output is correct |
| 20 |
Correct |
0 ms |
2804 KB |
Output is correct |
| 21 |
Correct |
0 ms |
2804 KB |
Output is correct |
| 22 |
Correct |
0 ms |
2804 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
48 ms |
3068 KB |
Output is correct |
| 2 |
Correct |
52 ms |
3068 KB |
Output is correct |
| 3 |
Correct |
52 ms |
3068 KB |
Output is correct |
| 4 |
Correct |
56 ms |
3728 KB |
Output is correct |
| 5 |
Correct |
56 ms |
3728 KB |
Output is correct |
| 6 |
Correct |
444 ms |
3728 KB |
Output is correct |
| 7 |
Correct |
420 ms |
3728 KB |
Output is correct |
| 8 |
Correct |
428 ms |
3596 KB |
Output is correct |
| 9 |
Correct |
56 ms |
2804 KB |
Output is correct |
| 10 |
Correct |
56 ms |
2804 KB |
Output is correct |
| 11 |
Correct |
56 ms |
2804 KB |
Output is correct |
| 12 |
Correct |
56 ms |
3728 KB |
Output is correct |
| 13 |
Correct |
52 ms |
3728 KB |
Output is correct |
| 14 |
Correct |
56 ms |
3728 KB |
Output is correct |
| 15 |
Correct |
40 ms |
2804 KB |
Output is correct |
| 16 |
Correct |
52 ms |
2804 KB |
Output is correct |
| 17 |
Correct |
12 ms |
2804 KB |
Output is correct |
| 18 |
Correct |
8 ms |
2804 KB |
Output is correct |
| 19 |
Correct |
8 ms |
2804 KB |
Output is correct |
| 20 |
Correct |
4 ms |
2804 KB |
Output is correct |
| 21 |
Correct |
4 ms |
2804 KB |
Output is correct |
| 22 |
Correct |
4 ms |
2804 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1432 ms |
4832 KB |
Output is correct |
| 2 |
Correct |
1448 ms |
4696 KB |
Output is correct |
| 3 |
Correct |
1400 ms |
7684 KB |
Output is correct |
| 4 |
Correct |
1520 ms |
4832 KB |
Output is correct |
| 5 |
Correct |
1648 ms |
3888 KB |
Output is correct |
| 6 |
Correct |
1424 ms |
7684 KB |
Output is correct |
| 7 |
Correct |
1520 ms |
3884 KB |
Output is correct |
| 8 |
Correct |
1608 ms |
3884 KB |
Output is correct |
| 9 |
Correct |
2164 ms |
2936 KB |
Output is correct |
| 10 |
Correct |
2128 ms |
2936 KB |
Output is correct |
| 11 |
Correct |
1492 ms |
3884 KB |
Output is correct |
| 12 |
Correct |
1400 ms |
7684 KB |
Output is correct |
| 13 |
Correct |
1360 ms |
5516 KB |
Output is correct |
| 14 |
Correct |
1408 ms |
5648 KB |
Output is correct |
| 15 |
Correct |
1724 ms |
2804 KB |
Output is correct |
| 16 |
Correct |
1480 ms |
2804 KB |
Output is correct |
| 17 |
Correct |
520 ms |
2804 KB |
Output is correct |
| 18 |
Correct |
504 ms |
2804 KB |
Output is correct |
| 19 |
Correct |
192 ms |
2804 KB |
Output is correct |
| 20 |
Correct |
180 ms |
2804 KB |
Output is correct |
| 21 |
Correct |
116 ms |
2804 KB |
Output is correct |
| 22 |
Correct |
124 ms |
2804 KB |
Output is correct |
