| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 3169 |
2013-08-27T08:59:51 Z |
myungwoo |
간선 파괴 (GA5_destroy) |
C++ |
|
2176 ms |
3260 KB |
#include <stdio.h>
#define MAXN 707
#define MAXM 123460
int N,M,Q;
int mom[MAXN],prev[MAXM],next[MAXM];
bool fchk[MAXM],bchk[MAXM];
struct Edge{
Edge(int a=0,int b=0): a(a), b(b) {}
int a,b;
} edge[MAXM];
int _find(int n){ return mom[n]==n?n:(mom[n]=_find(mom[n])); }
int _union(int a,int b){ a = _find(a), b = _find(b); if (a != b){ mom[b] = a; return 1; } return 0; }
int main()
{
int i,k,s,e;
scanf("%d%d",&N,&M);
for (i=1;i<=M;i++) scanf("%d%d",&s,&e), edge[i] = Edge(s,e);
for (i=1;i<=N;i++) mom[i] = i;
for (i=1,k=0;i<=M;i++){
prev[i] = k;
if (_union(edge[i].a,edge[i].b)){
fchk[i] = 1;
k = i;
}
}
for (i=1;i<=N;i++) mom[i] = i;
for (i=M,k=M+1;i>0;i--){
next[i] = k;
if (_union(edge[i].a,edge[i].b)){
bchk[i] = 1;
k = i;
}
}
for (scanf("%d",&Q);Q--;){
scanf("%d%d",&s,&e);
for (i=1;i<=N;i++) mom[i] = i;
for (--s;s>0;s=prev[s]) if (fchk[s]){
_union(edge[s].a,edge[s].b);
}
for (++e;e<=M;e=next[e]) if (bchk[e]){
_union(edge[e].a,edge[e].b);
}
int ans=0;
for (i=1;i<=N;i++) if (_find(i) == i){
ans++;
}
printf("%d\n",ans);
}
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
3260 KB |
Output is correct |
| 2 |
Correct |
0 ms |
3260 KB |
Output is correct |
| 3 |
Correct |
0 ms |
3260 KB |
Output is correct |
| 4 |
Correct |
0 ms |
3260 KB |
Output is correct |
| 5 |
Correct |
0 ms |
3260 KB |
Output is correct |
| 6 |
Correct |
0 ms |
3260 KB |
Output is correct |
| 7 |
Correct |
0 ms |
3260 KB |
Output is correct |
| 8 |
Correct |
0 ms |
3260 KB |
Output is correct |
| 9 |
Correct |
0 ms |
3260 KB |
Output is correct |
| 10 |
Correct |
0 ms |
3260 KB |
Output is correct |
| 11 |
Correct |
0 ms |
3260 KB |
Output is correct |
| 12 |
Correct |
0 ms |
3260 KB |
Output is correct |
| 13 |
Correct |
0 ms |
3260 KB |
Output is correct |
| 14 |
Correct |
0 ms |
3260 KB |
Output is correct |
| 15 |
Correct |
0 ms |
3260 KB |
Output is correct |
| 16 |
Correct |
0 ms |
3260 KB |
Output is correct |
| 17 |
Correct |
0 ms |
3260 KB |
Output is correct |
| 18 |
Correct |
0 ms |
3260 KB |
Output is correct |
| 19 |
Correct |
0 ms |
3260 KB |
Output is correct |
| 20 |
Correct |
0 ms |
3260 KB |
Output is correct |
| 21 |
Correct |
0 ms |
3260 KB |
Output is correct |
| 22 |
Correct |
0 ms |
3260 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
52 ms |
3260 KB |
Output is correct |
| 2 |
Correct |
56 ms |
3260 KB |
Output is correct |
| 3 |
Correct |
60 ms |
3260 KB |
Output is correct |
| 4 |
Correct |
64 ms |
3260 KB |
Output is correct |
| 5 |
Correct |
64 ms |
3260 KB |
Output is correct |
| 6 |
Correct |
564 ms |
3260 KB |
Output is correct |
| 7 |
Correct |
552 ms |
3260 KB |
Output is correct |
| 8 |
Correct |
524 ms |
3260 KB |
Output is correct |
| 9 |
Correct |
60 ms |
3260 KB |
Output is correct |
| 10 |
Correct |
52 ms |
3260 KB |
Output is correct |
| 11 |
Correct |
56 ms |
3260 KB |
Output is correct |
| 12 |
Correct |
60 ms |
3260 KB |
Output is correct |
| 13 |
Correct |
56 ms |
3260 KB |
Output is correct |
| 14 |
Correct |
60 ms |
3260 KB |
Output is correct |
| 15 |
Correct |
52 ms |
3260 KB |
Output is correct |
| 16 |
Correct |
60 ms |
3260 KB |
Output is correct |
| 17 |
Correct |
28 ms |
3260 KB |
Output is correct |
| 18 |
Correct |
20 ms |
3260 KB |
Output is correct |
| 19 |
Correct |
12 ms |
3260 KB |
Output is correct |
| 20 |
Correct |
12 ms |
3260 KB |
Output is correct |
| 21 |
Correct |
4 ms |
3260 KB |
Output is correct |
| 22 |
Correct |
4 ms |
3260 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2060 ms |
3260 KB |
Output is correct |
| 2 |
Correct |
1888 ms |
3260 KB |
Output is correct |
| 3 |
Correct |
2060 ms |
3260 KB |
Output is correct |
| 4 |
Correct |
1980 ms |
3260 KB |
Output is correct |
| 5 |
Correct |
2076 ms |
3260 KB |
Output is correct |
| 6 |
Correct |
1968 ms |
3260 KB |
Output is correct |
| 7 |
Correct |
2076 ms |
3260 KB |
Output is correct |
| 8 |
Correct |
2132 ms |
3260 KB |
Output is correct |
| 9 |
Correct |
2052 ms |
3260 KB |
Output is correct |
| 10 |
Correct |
2176 ms |
3260 KB |
Output is correct |
| 11 |
Correct |
1960 ms |
3260 KB |
Output is correct |
| 12 |
Correct |
1984 ms |
3260 KB |
Output is correct |
| 13 |
Correct |
1860 ms |
3260 KB |
Output is correct |
| 14 |
Correct |
1948 ms |
3260 KB |
Output is correct |
| 15 |
Correct |
1912 ms |
3260 KB |
Output is correct |
| 16 |
Correct |
1780 ms |
3260 KB |
Output is correct |
| 17 |
Correct |
1052 ms |
3260 KB |
Output is correct |
| 18 |
Correct |
1020 ms |
3260 KB |
Output is correct |
| 19 |
Correct |
408 ms |
3260 KB |
Output is correct |
| 20 |
Correct |
532 ms |
3260 KB |
Output is correct |
| 21 |
Correct |
176 ms |
3260 KB |
Output is correct |
| 22 |
Correct |
188 ms |
3260 KB |
Output is correct |
