#include <iostream>
#include <algorithm>
#include <stdio.h>
int n, a, pa, pb;
long long c, d;
long long h[100000], hh[100000];
int parent[100000], lenth[100000];
int findp(int pp)
{
if(parent[pp]!=pp){parent[pp]=findp(parent[pp]);}
//else{return pp;}
//else{return parent[pp];}
return parent[pp];
}
int main ()
{
//// freopen("input.txt", "r", stdin);
// freopen("output.txt", "w", stdout);
int i, j, k;
scanf("%d", &n);
for(i=1;i<=n;i++){lenth[i]=1;} for(i=1;i<=n;i++){parent[i]=i;} h[1]=1; hh[2]=1;
for(i=2;i<=n;i++){h[i]=i+h[i-1];} for(i=3;i<=n;i++){hh[i]=hh[i-1]+h[i-1];}
for(i=1;i<=n-1;i++)
{
scanf("%d", &a);
pa=findp(a); pb=findp(a+1);
parent[pb]=pa;
lenth[pa]=lenth[pa]+lenth[pb]; //printf("%d %d %d %d %d\n", pa, pb, parent[pb], lenth[pa], lenth[pb]);
c=(lenth[pa]*(lenth[pa]-1))/2;
d=hh[lenth[pa]-1]+h[lenth[pa]-1];
printf("%lld %lld\n", c, d);
}
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
44 ms |
4016 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |