oj.uz

Submission #1065938

# Submission time Handle Problem Language Result Execution time Memory
1065938 2024-08-19T13:19:26 Z Ahmed57 Stations (IOI20_stations) C++17
100 / 100
 632 ms 1056 KB 
#include "bits/stdc++.h"
using namespace std;
int dep[1001];
int timer = 0;
vector<int> adj[1001];
int in[1001],out[1001];
void dfs(int i,int pr){
    dep[i] = dep[pr]+1;
    if(dep[i]%2){
        timer++;
    }
    in[i] = timer;
    for(auto j:adj[i]){
        if(j==pr)continue;
        dfs(j,i);
    }
    if(dep[i]%2==0)timer++;
    out[i] = timer;
}
vector<int> label(int n, int k, vector<int> u, vector<int> v){
    timer = 0;
    for(int i = 0;i<n;i++){
        adj[i].clear();
    }
    for(int i = 0;i<n-1;i++){
        adj[u[i]].push_back(v[i]);
        adj[v[i]].push_back(u[i]);
    }
    dep[0] = 1;
    dfs(0,0);
    vector<int> lol;
    for(int i = 0;i<n;i++){
        if(dep[i]%2==0){
            lol.push_back(in[i]);
            //cout<<in[i]<<" ";
        }else{
            lol.push_back(out[i]);
            //cout<<out[i]<<" ";
        }
    }
    return lol;
}

int find_next_station(int s, int t, vector<int> c){
    sort(c.begin(),c.end());
    if(c.size()==1)return c[0];
    if(c[0]<s){
        vector<int> na;
        for(int i = 1;i<c.size();i++)na.push_back(c[i]);
        na.push_back(s);
        if(t<c[1]||t>s)return c[0];
        int lol = 0;
        for(int i = 0;i<na.size();i++){
            if(t>=na[i]){
                lol = na[i];
            }
        }
        return lol;
    }else{
        vector<int> na;
        na.push_back(s);
        for(int i = 0;i<c.size()-1;i++)na.push_back(c[i]);
        if(t>c[c.size()-2]||t<s)return c.back();
        int lol = 0;
        for(int i = 0;i<na.size();i++){
            if(t<=na[i]){
                lol = na[i];
                break;
            }
        }
        return lol;
    }
}

Compilation message

stations.cpp: In function 'int find_next_station(int, int, std::vector<int>)':
stations.cpp:49:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   49 |         for(int i = 1;i<c.size();i++)na.push_back(c[i]);
      |                       ~^~~~~~~~~
stations.cpp:53:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   53 |         for(int i = 0;i<na.size();i++){
      |                       ~^~~~~~~~~~
stations.cpp:62:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   62 |         for(int i = 0;i<c.size()-1;i++)na.push_back(c[i]);
      |                       ~^~~~~~~~~~~
stations.cpp:65:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   65 |         for(int i = 0;i<na.size();i++){
      |                       ~^~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 369 ms 684 KB Output is correct
2 Correct 284 ms 696 KB Output is correct
3 Correct 576 ms 684 KB Output is correct
4 Correct 457 ms 684 KB Output is correct
5 Correct 379 ms 684 KB Output is correct
6 Correct 340 ms 684 KB Output is correct
7 Correct 281 ms 688 KB Output is correct
8 Correct 2 ms 768 KB Output is correct
9 Correct 1 ms 768 KB Output is correct
10 Correct 1 ms 764 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 275 ms 684 KB Output is correct
2 Correct 327 ms 684 KB Output is correct
3 Correct 568 ms 684 KB Output is correct
4 Correct 443 ms 684 KB Output is correct
5 Correct 396 ms 680 KB Output is correct
6 Correct 328 ms 684 KB Output is correct

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 374 ms 688 KB Output is correct
2 Correct 307 ms 684 KB Output is correct
3 Correct 632 ms 684 KB Output is correct
4 Correct 459 ms 684 KB Output is correct
5 Correct 417 ms 684 KB Output is correct
6 Correct 307 ms 684 KB Output is correct
7 Correct 292 ms 684 KB Output is correct
8 Correct 1 ms 768 KB Output is correct
9 Correct 2 ms 768 KB Output is correct
10 Correct 0 ms 768 KB Output is correct
11 Correct 420 ms 684 KB Output is correct
12 Correct 316 ms 796 KB Output is correct
13 Correct 320 ms 932 KB Output is correct
14 Correct 290 ms 684 KB Output is correct
15 Correct 26 ms 764 KB Output is correct
16 Correct 39 ms 768 KB Output is correct
17 Correct 63 ms 688 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 619 ms 684 KB Output is correct
2 Correct 508 ms 684 KB Output is correct
3 Correct 388 ms 684 KB Output is correct
4 Correct 2 ms 776 KB Output is correct
5 Correct 2 ms 768 KB Output is correct
6 Correct 0 ms 768 KB Output is correct
7 Correct 393 ms 684 KB Output is correct
8 Correct 619 ms 684 KB Output is correct
9 Correct 455 ms 936 KB Output is correct
10 Correct 424 ms 684 KB Output is correct
11 Correct 3 ms 768 KB Output is correct
12 Correct 3 ms 776 KB Output is correct
13 Correct 3 ms 776 KB Output is correct
14 Correct 3 ms 776 KB Output is correct
15 Correct 1 ms 768 KB Output is correct
16 Correct 306 ms 684 KB Output is correct
17 Correct 371 ms 684 KB Output is correct
18 Correct 333 ms 684 KB Output is correct
19 Correct 324 ms 684 KB Output is correct
20 Correct 359 ms 684 KB Output is correct

Subtask #5
61.0 / 61.0

# Verdict Execution time Memory Grader output
1 Correct 378 ms 684 KB Output is correct
2 Correct 329 ms 684 KB Output is correct
3 Correct 606 ms 684 KB Output is correct
4 Correct 420 ms 688 KB Output is correct
5 Correct 434 ms 684 KB Output is correct
6 Correct 296 ms 684 KB Output is correct
7 Correct 299 ms 684 KB Output is correct
8 Correct 1 ms 776 KB Output is correct
9 Correct 1 ms 776 KB Output is correct
10 Correct 0 ms 776 KB Output is correct
11 Correct 281 ms 684 KB Output is correct
12 Correct 348 ms 684 KB Output is correct
13 Correct 550 ms 684 KB Output is correct
14 Correct 457 ms 684 KB Output is correct
15 Correct 427 ms 712 KB Output is correct
16 Correct 313 ms 684 KB Output is correct
17 Correct 420 ms 684 KB Output is correct
18 Correct 289 ms 796 KB Output is correct
19 Correct 323 ms 792 KB Output is correct
20 Correct 310 ms 684 KB Output is correct
21 Correct 27 ms 764 KB Output is correct
22 Correct 38 ms 716 KB Output is correct
23 Correct 63 ms 716 KB Output is correct
24 Correct 2 ms 776 KB Output is correct
25 Correct 2 ms 768 KB Output is correct
26 Correct 2 ms 768 KB Output is correct
27 Correct 1 ms 768 KB Output is correct
28 Correct 0 ms 768 KB Output is correct
29 Correct 341 ms 684 KB Output is correct
30 Correct 355 ms 684 KB Output is correct
31 Correct 369 ms 684 KB Output is correct
32 Correct 327 ms 684 KB Output is correct
33 Correct 347 ms 684 KB Output is correct
34 Correct 215 ms 684 KB Output is correct
35 Correct 267 ms 940 KB Output is correct
36 Correct 307 ms 684 KB Output is correct
37 Correct 351 ms 800 KB Output is correct
38 Correct 312 ms 796 KB Output is correct
39 Correct 310 ms 1056 KB Output is correct
40 Correct 319 ms 800 KB Output is correct
41 Correct 341 ms 940 KB Output is correct
42 Correct 43 ms 768 KB Output is correct
43 Correct 55 ms 768 KB Output is correct
44 Correct 72 ms 684 KB Output is correct
45 Correct 110 ms 772 KB Output is correct
46 Correct 200 ms 684 KB Output is correct
47 Correct 195 ms 684 KB Output is correct
48 Correct 32 ms 704 KB Output is correct
49 Correct 45 ms 920 KB Output is correct