Submission #274681

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
274681	2020-08-19 14:03:18	Saboon	Ideal city (IOI12_city)	C++14	100 / 100	87 ms	12660 KiB

city

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#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
const int maxn = 1e5 + 10;
const int mod = 1e9;
int n, p[maxn], par[maxn], lef[maxn], rig[maxn];
vector<int> t[maxn];
int answer = 0;
int Sum = 0, Num = 0;
int SZ;
int fen1[maxn], fen2[maxn];
void vitex(){
  Sum = Num = 0;
  for (int i = 1; i <= SZ; i++)
    fen1[i] = fen2[i] = 0;
}
pair<int,int> get(int idx){
  int ret = 0, ted = 0;
  for (; idx; idx -= idx & -idx){
    ret = (ret + fen1[idx]) % mod;
    ted = (ted + fen2[idx]);
  }
  return {ret,ted};
}
 
 
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• Subtask 1: 11 / 11
• Subtask 2: 21 / 21
• Subtask 3: 23 / 23
• Subtask 4: 45 / 45