Submission #223188

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
223188	2020-04-15 04:47:26	lyc	Putovanje (COCI20_putovanje)	C++14	110 / 110	147 ms	17784 KiB

putovanje

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#include <bits/stdc++.h>
using namespace std;
#define SZ(x) (int)(x).size()
#define FOR(i,a,b) for(int i=(a);i<=(b);++i)
#define RFOR(i,a,b) for (int i=(a);i>=(b);--i)
const int MX_N = 2e5+5;
int N;
vector<tuple<int,int,int>> al[MX_N];
struct FenwickTree {
    vector<int> ft;
    int n;
    void init(int _n) {
        n = _n;
        ft.assign(n+1,0);
    }
    void u(int i, int x) { for (; i <= n; i += i&-i) ft[i] += x; }
    int query(int i) { int sum = 0; for (; i; i -= i&-i) sum += ft[i]; return sum; }
    void update(int i, int j, int x) { u(i,x); u(j+1,-x); }
} ft;
pair<int,int> weight[MX_N];
/* custom ds of you choice */
int cnt = 1;
int pa[MX_N], dep[MX_N];
int heavy[MX_N], head[MX_N], pos[MX_N];
// heavy stores the heavy child of this vertex
 
 
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• Subtask 1: 20 / 20
• Subtask 2: 25 / 25
• Subtask 3: 65 / 65