oj.uz

Submission #320605

# Submission time Handle Problem Language Result Execution time Memory
320605 2020-11-09T08:33:19 Z kshitij_sodani Stations (IOI20_stations) C++14
100 / 100
 1178 ms 1276 KB 
#include <bits/stdc++.h>
using namespace std;
typedef long long llo;
#define mp make_pair
#define pb push_back
#define a first 
#define b second
#define endl '\n'



#include "stations.h"

vector<int> adj[1001];
int co=0;
int st[1001];
int endd[1001];
int levv[1001];
int nn;
void dfs(int no,int par=-1,int levv=0){
	if(levv%2==0){
		st[no]=co;
		co++;
	}
	for(auto j:adj[no]){
		if(j!=par){
			dfs(j,no,levv+1);
		}
	}

	if(levv%2==1){
		st[no]=co;
		co++;
	}

}
std::vector<int> label(int n, int k, std::vector<int> u, std::vector<int> v) {
	nn=n;
	for(int i=0;i<n;i++){
		adj[i].clear();
	}
	co=0;
	for(int i=0;i<n-1;i++){
		adj[u[i]].pb(v[i]);
		adj[v[i]].pb(u[i]);
	}
	dfs(0);
	vector<int> ans;
	for(int i=0;i<n;i++){
		ans.pb(st[i]);
	//	cout<<st[i];
	}
	//cout<<endl;




	return ans;
}

int find_next_station(int s, int t, std::vector<int> c) {
	
	if(c.size()==1){
		return c[0];
	}


	sort(c.begin(),c.end());
	/*vector<int> cc;
	for(auto j:c){
		if(j>=1000){
			cc.pb(j-1000);
		}
		else{
			cc.pb(j);
		}
	}*/
	if(s<c[0]){
		int pre=s-1;

		for(int i=0;i<c.size()-1;i++){
			int la=0;

			if(i==0){
				la=s;
			}
			else{
				la=c[i-1]+1;
			}
			if(t<=c[i] and t>=la){
				return c[i];
			}
		}
		return c.back();

	}
	else{
		for(int i=c.size()-1;i>0;i--){
			int la=0;
			if(i==c.size()-1){
				la=s;
			}
			else{
				la=c[i+1]-1;
			}
			if(t<=la and t>=c[i]){
				return c[i];
			}
		}
		return c[0];



	}











	return c[0];
}

Compilation message

stations.cpp: In function 'int find_next_station(int, int, std::vector<int>)':
stations.cpp:81:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   81 |   for(int i=0;i<c.size()-1;i++){
      |               ~^~~~~~~~~~~
stations.cpp:79:7: warning: unused variable 'pre' [-Wunused-variable]
   79 |   int pre=s-1;
      |       ^~~
stations.cpp:100:8: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  100 |    if(i==c.size()-1){
      |       ~^~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 649 ms 1276 KB Output is correct
2 Correct 516 ms 1028 KB Output is correct
3 Correct 1107 ms 984 KB Output is correct
4 Correct 669 ms 940 KB Output is correct
5 Correct 635 ms 1108 KB Output is correct
6 Correct 470 ms 1128 KB Output is correct
7 Correct 528 ms 1092 KB Output is correct
8 Correct 3 ms 948 KB Output is correct
9 Correct 4 ms 940 KB Output is correct
10 Correct 2 ms 736 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 557 ms 888 KB Output is correct
2 Correct 685 ms 1012 KB Output is correct
3 Correct 1055 ms 864 KB Output is correct
4 Correct 690 ms 1244 KB Output is correct
5 Correct 832 ms 736 KB Output is correct
6 Correct 470 ms 892 KB Output is correct

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 505 ms 864 KB Output is correct
2 Correct 515 ms 992 KB Output is correct
3 Correct 1178 ms 864 KB Output is correct
4 Correct 677 ms 1068 KB Output is correct
5 Correct 596 ms 864 KB Output is correct
6 Correct 612 ms 992 KB Output is correct
7 Correct 464 ms 1080 KB Output is correct
8 Correct 3 ms 864 KB Output is correct
9 Correct 5 ms 948 KB Output is correct
10 Correct 2 ms 940 KB Output is correct
11 Correct 599 ms 940 KB Output is correct
12 Correct 564 ms 992 KB Output is correct
13 Correct 437 ms 1056 KB Output is correct
14 Correct 481 ms 884 KB Output is correct
15 Correct 57 ms 864 KB Output is correct
16 Correct 77 ms 864 KB Output is correct
17 Correct 125 ms 888 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 898 ms 940 KB Output is correct
2 Correct 869 ms 984 KB Output is correct
3 Correct 808 ms 736 KB Output is correct
4 Correct 3 ms 736 KB Output is correct
5 Correct 5 ms 736 KB Output is correct
6 Correct 1 ms 736 KB Output is correct
7 Correct 656 ms 736 KB Output is correct
8 Correct 901 ms 940 KB Output is correct
9 Correct 701 ms 944 KB Output is correct
10 Correct 647 ms 940 KB Output is correct
11 Correct 6 ms 1064 KB Output is correct
12 Correct 7 ms 736 KB Output is correct
13 Correct 6 ms 944 KB Output is correct
14 Correct 4 ms 896 KB Output is correct
15 Correct 2 ms 864 KB Output is correct
16 Correct 488 ms 864 KB Output is correct
17 Correct 564 ms 736 KB Output is correct
18 Correct 574 ms 864 KB Output is correct
19 Correct 535 ms 952 KB Output is correct
20 Correct 683 ms 864 KB Output is correct

Subtask #5
61.0 / 61.0

# Verdict Execution time Memory Grader output
1 Correct 556 ms 1060 KB Output is correct
2 Correct 496 ms 864 KB Output is correct
3 Correct 997 ms 1068 KB Output is correct
4 Correct 665 ms 748 KB Output is correct
5 Correct 571 ms 944 KB Output is correct
6 Correct 439 ms 864 KB Output is correct
7 Correct 596 ms 864 KB Output is correct
8 Correct 3 ms 940 KB Output is correct
9 Correct 4 ms 864 KB Output is correct
10 Correct 1 ms 864 KB Output is correct
11 Correct 548 ms 736 KB Output is correct
12 Correct 645 ms 884 KB Output is correct
13 Correct 904 ms 936 KB Output is correct
14 Correct 804 ms 940 KB Output is correct
15 Correct 662 ms 944 KB Output is correct
16 Correct 473 ms 1120 KB Output is correct
17 Correct 721 ms 940 KB Output is correct
18 Correct 532 ms 1112 KB Output is correct
19 Correct 523 ms 1064 KB Output is correct
20 Correct 498 ms 736 KB Output is correct
21 Correct 72 ms 864 KB Output is correct
22 Correct 91 ms 736 KB Output is correct
23 Correct 138 ms 880 KB Output is correct
24 Correct 7 ms 948 KB Output is correct
25 Correct 7 ms 736 KB Output is correct
26 Correct 6 ms 864 KB Output is correct
27 Correct 4 ms 736 KB Output is correct
28 Correct 2 ms 864 KB Output is correct
29 Correct 492 ms 884 KB Output is correct
30 Correct 561 ms 948 KB Output is correct
31 Correct 656 ms 948 KB Output is correct
32 Correct 523 ms 936 KB Output is correct
33 Correct 470 ms 864 KB Output is correct
34 Correct 337 ms 1208 KB Output is correct
35 Correct 406 ms 1044 KB Output is correct
36 Correct 439 ms 1072 KB Output is correct
37 Correct 466 ms 1220 KB Output is correct
38 Correct 453 ms 1004 KB Output is correct
39 Correct 474 ms 1112 KB Output is correct
40 Correct 468 ms 1112 KB Output is correct
41 Correct 434 ms 1228 KB Output is correct
42 Correct 63 ms 888 KB Output is correct
43 Correct 100 ms 864 KB Output is correct
44 Correct 124 ms 864 KB Output is correct
45 Correct 167 ms 992 KB Output is correct
46 Correct 312 ms 864 KB Output is correct
47 Correct 306 ms 1104 KB Output is correct
48 Correct 66 ms 1088 KB Output is correct
49 Correct 63 ms 864 KB Output is correct