#include <cstdio>
#include <map>
using namespace std;
int n;
int uf[100001];
int sz[100001];
int find(int x) {
if(uf[x] == x) return x;
else return uf[x] = find(uf[x]);
}
struct info {
int m1, m2;
int p;
};
info merge(int i, int j) {
i = find(i), j = find(j);
info ret;
ret.m1 = sz[i];
ret.m2 = sz[j];
// uf[i] = j
uf[i] = j;
sz[j] += sz[i];
sz[i] = 0;
ret.p = sz[j];
return ret;
}
int nextInt() {
int t; scanf("%d", &t); return t;
}
void dealwith(map<int, int> &a) {
long long ans1 = 0, ans2 = 0;
for(map<int, int>::iterator it = a.begin(); it != a.end(); ++ it) {
long long s = it->first, w = it->second;
// printf("<%d> * %d\n", s, w);
ans1 += s * (s-1) / 2 * w;
ans2 += s * (s-1) * (s+1) / 6 * w;
}
printf("%lld %lld\n", ans1, ans2);
}
int main() {
n = nextInt();
map<int, int> a;
a[1] = n;
for(int i = 0; i < n; ++ i)
uf[i] = i, sz[i] = 1;
for(int i = 0; i < n - 1; ++ i) {
int p = nextInt() - 1;
info in = merge(p, p+1);
a[in.m1] --;
a[in.m2] --;
a[in.p] ++;
dealwith(a);
}
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
80 ms |
1992 KB |
Output is correct |
2 |
Correct |
80 ms |
1992 KB |
Output is correct |
3 |
Correct |
80 ms |
1992 KB |
Output is correct |
4 |
Correct |
80 ms |
1992 KB |
Output is correct |
5 |
Correct |
36 ms |
1992 KB |
Output is correct |
6 |
Execution timed out |
400 ms |
2520 KB |
Program timed out |