Submission #878498

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
878498	2023-11-24 14:22:48	prohacker	Passport (JOI23_passport)	C++14	100 / 100	600 ms	83484 KiB

passport

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#include <bits/stdc++.h>
#define ll long long
#define ld long double
#define pii pair<int,int>
using namespace std;
const int N = 2e5+10;
const int INF = INT_MAX;
const int mod = 1e9+7;
const string NAME = "solve";
int n,cnt;
int d[2][4*N];
vector<pii> adj[4*N];
int idx[4*N];
int q;
void build(int id = 1, int l = 1, int r = n) {
    if(l == r) {
        idx[id] = l;
        return;
    }
    idx[id] = ++cnt;
    int mid = l + r >> 1;
    build(id << 1,l,mid);
    build(id << 1 | 1,mid+1,r);
    adj[idx[id << 1]].push_back({idx[id],0});
    adj[idx[id << 1 | 1]].push_back({idx[id],0});
}
 
 
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Compilation message (stderr)

passport.cpp: In function 'void build(int, int, int)':
passport.cpp:25:17: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   25 |     int mid = l + r >> 1;
      |               ~~^~~
passport.cpp: In function 'void update(int, int, int, int, int, int)':
passport.cpp:37:17: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   37 |     int mid = l + r >> 1;
      |               ~~^~~
passport.cpp: In function 'int main()':
passport.cpp:70:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   70 |         freopen((NAME + ".inp").c_str(), "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
passport.cpp:71:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   71 |         freopen((NAME + ".out").c_str(), "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 6 / 6
• Subtask 2: 16 / 16
• Subtask 3: 24 / 24
• Subtask 4: 8 / 8
• Subtask 5: 46 / 46