Submission #413107

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
413107	2021-05-28 08:55:18	BJoozz	Stations (IOI20_stations)	C++14	5 / 100	1077 ms	700 KiB

stations

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
#include "stations.h"
#define X first
#define Y second
#define pb push_back
#include<bits/stdc++.h>
using namespace std;
const int MAX=1000+4,M2=5e5+3;
void maxx(int &a,int b){if(b>a) a=b;}
void minn(int &a,int b){if(b<a) a=b;}
template <class X, class Y>
bool cmin(X &a, const Y &b) {
    return a > b ? a = b, 1 : 0;
}
bool cmax(int &a,int b){
    if(b>a){a=b;return 1;} else return 0;
}
typedef pair < int, int > ii;
vector < int > pr[MAX];
int in[MAX];
int tim=0;
void dfs(int v,int vpa,bool h){
    if(!h) in[v]=tim++;
    for(int u:pr[v])if(u!=vpa)
        dfs(u,v,!h);
    if(h) in[v]=tim++;
}
std::vector<int> label(int n, int k, std::vector<int> u, std::vector<int> v) {
  std::vector<int> labels(n);
  for(int i=0;i<n;i++) pr[i].clear();
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Compilation message (stderr)

stations.cpp: In function 'int find_next_station(int, int, std::vector<int>)':
stations.cpp:52:20: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   52 |             int m=b+e>>1;
      |                   ~^~
stations.cpp:65:20: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   65 |             int m=b+e>>1;
      |                   ~^~

• Subtask 1: 5 / 5
• Subtask 2: 0 / 8
• Subtask 3: 0 / 16
• Subtask 4: 0 / 10
• Subtask 5: 0 / 61