Submission #446256

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
446256	2021-07-21 11:19:15	benedict0724	Dynamic Diameter (CEOI19_diameter)	C++17	0 / 100	2 ms	460 KiB

diameter

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#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int, int> pl;
int par[100002], v[100002], E[100002];
int dp[100002][2];
int tree[400002];
int init(int i, int l, int r){
    if(l == r) return tree[i] = dp[l][1];
    int m = (l + r)/2;
    return tree[i] = max(init(i*2, l, m), init(i*2+1, m+1, r));
}
void update(int i, int l, int r, int id, int val){
    if(id < l | r < id) return;
    if(l == r) { tree[i] = val; return; }
    int m = (l + r)/2;
    if(id <= m) update(i*2, l, m, id, val);
    else update(i*2+1, m+1, r, id, val);
    tree[i] = max(tree[i*2], tree[i*2+1]);
}
int query() { return tree[1]; }
int main()
{
    ios::sync_with_stdio(false); cin.tie(NULL);
    int n, q, w; cin >> n >> q >> w;
 
 
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Compilation message (stderr)

diameter.cpp: In function 'void update(int, int, int, int, int)':
diameter.cpp:17:11: warning: suggest parentheses around comparison in operand of '|' [-Wparentheses]
   17 |     if(id < l | r < id) return;
      |        ~~~^~~

• Subtask 1: 0 / 11
• Subtask 2: 0 / 13
• Subtask 3: 0 / 7
• Subtask 4: 0 / 18
• Subtask 5: 0 / 24
• Subtask 6: 0 / 27