Submission #986688

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
986688	2024-05-21 03:45:58	JooDdae	Salesman (IOI09_salesman)	C++17	100 / 100	1002 ms	54176 KiB

salesman

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#pragma GCC optimize ("O3")
#pragma GCC target ("avx2")
 
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
 
#define mid ((l+r) >> 1)
 
const int INF = 2e9, N = 5e5+1;
 
int n, u, d, s, mx[500500], t1[2002002], t2[2002002];
vector<array<int, 2>> v[500500];
 
void update(int t[], int id, int x, int node = 1, int l = 1, int r = N) {
    if(id < l || r < id) return;
    if(l == r) {
        t[node] = max(t[node], x);
        return;
    }
    if(id <= mid) update(t, id, x, node*2, l, mid);
    else update(t, id, x, node*2+1, mid+1, r);
    t[node] = max(t[node*2], t[node*2+1]);
}
 
int find(int t[], int nl, int nr, int node = 1, int l = 1, int r = N) {
    if(nr < l || r < nl) return -INF;
    if(nl <= l && r <= nr) return t[node];
  
    int re = -INF;
 
 
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• Subtask 1: 100 / 100