Submission #629922

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
629922	2022-08-15 11:02:01	stevancv	늑대인간 (IOI18_werewolf)	C++14	100 / 100	696 ms	74788 KiB

werewolf

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#include <bits/stdc++.h>
#include "werewolf.h"
#define ll long long
#define ld long double
#define sp ' '
#define en '\n'
#define smin(a, b) a = min(a, b)
#define smax(a, b) a = max(a, b)
using namespace std;
const int N = 2e5 + 2;
const int mod = 1e9 + 7;
vector<int> g[2][N];
int in[2][N], out[2][N], tsz;
void Dfs(int s, int o) {
    in[o][s] = ++tsz;
    for (int u : g[o][s]) Dfs(u, o);
    out[o][s] = tsz;
}
int st[4 * N];
void Add(int node, int l, int r, int p) {
    st[node]++;
    if (l == r) return;
    int mid = l + r >> 1;
    if (p <= mid) Add(2 * node, l, mid, p);
    else Add(2 * node + 1, mid + 1, r, p);
}
int Get(int node, int l, int r, int ql, int qr) {
    if (r < ql || qr < l) return 0;
    if (ql <= l && r <= qr) return st[node];
    int mid = l + r >> 1;
 
 
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Compilation message (stderr)

werewolf.cpp: In function 'void Add(int, int, int, int)':
werewolf.cpp:23:17: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   23 |     int mid = l + r >> 1;
      |               ~~^~~
werewolf.cpp: In function 'int Get(int, int, int, int, int)':
werewolf.cpp:30:17: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   30 |     int mid = l + r >> 1;
      |               ~~^~~

• Subtask 1: 7 / 7
• Subtask 2: 8 / 8
• Subtask 3: 34 / 34
• Subtask 4: 51 / 51