Submission #957684

#TimeUTC-0UsernameProblemLanguageResultExecution timeMemory
9576842024-04-04 07:56:22guagua0407Synchronization (JOI13_synchronization)C++17
0 / 100
79 ms27080 KiB
//#pragma GCC optimize("O3")
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define pii pair<int,int>
#define f first
#define s second
#define all(x) x.begin(),x.end()
#define _ ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);
int dx[4]={0,0,1,-1};
int dy[4]={1,-1,0,0};
void setIO(string s) {
freopen((s + ".in").c_str(), "r", stdin);
freopen((s + ".out").c_str(), "w", stdout);
}
const int mxn=1e5+5;
vector<int> adj[mxn];
vector<int> dp[mxn];
int up[mxn][20];
int st[mxn],en[mxn];
bool ok[mxn];
int depth[mxn];
int bit[mxn];
int timer=0;
void update(int pos,int val){
for(;pos<mxn;pos+=(pos&-pos)){
 
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Compilation message (stderr)

synchronization.cpp: In function 'void setIO(std::string)':
synchronization.cpp:15:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   15 |     freopen((s + ".in").c_str(), "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
synchronization.cpp:16:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   16 |     freopen((s + ".out").c_str(), "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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