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Submission #992769

# Submission time Handle Problem Language Result Execution time Memory
992769 2024-06-05T07:02:47 Z Muhammet Longest Trip (IOI23_longesttrip) C++17
15 / 100
 1000 ms 1604 KB 
#include <bits/stdc++.h>
#include "longesttrip.h"

#define N 1005

using namespace std;

vector <int> v[N], v1;

int c[N], k, y;

bool vis[N][N], vi[N];

void dfs(int x){
    vi[x] = 1;
    if(k < c[x]) y = x;
    k = max(c[x], k);
    for(auto i : v[x]){
        if(vi[i] == 0){
            c[i] = c[x] + 1;
            dfs(i);
        }
    }
}

void df(int x, int z){
    v1.push_back(x);
    if(x == z) return;
    for(auto i : v[x]){
        if(c[i] == c[x] - 1){
            df(i,z);
            break;
        }
    }
}

vector<int> longest_trip(int n, int d) {
    vector <int> a(1), b(1);
    for(int i = 0; i < n; i++) v[i].clear();
    for(int i = 0; i < n; i++){
        for(int j = 0; j < n; j++){
            vis[i][j] = 0;
        }
    }
    for(int i = 0; i < n; i++){
        for(int j = i+1; j < n; j++){
            a[0] = i;
            b[0] = j;
            if(are_connected(a, b) and vis[i][j] == 0) {
                vis[i][j] = 1;
                vis[j][i] = 1;
                v[i].push_back(j);
                v[j].push_back(i);
            }
        }
    }
    v1.clear();
    int mx = 0;
    for(int i = 0; i < n; i++){
        for(int j = 0; j < n; j++) vi[j] = c[j] = 0;
        k = y = 0;
        c[i] = 1;
        dfs(i);
        if(k > mx){
            mx = k;
            v1.clear();
            df(y,i);
        }
    }
    reverse(v1.begin(), v1.end());
    return v1;
}

Compilation message

longesttrip.cpp: In function 'std::vector<int> longest_trip(int, int)':
longesttrip.cpp:60:49: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
   60 |         for(int j = 0; j < n; j++) vi[j] = c[j] = 0;
      |                                            ~~~~~^~~

Subtask #0
0.0 / 0.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 217 ms 1076 KB Output is correct

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 344 KB Output is correct
2 Correct 31 ms 344 KB Output is correct
3 Correct 155 ms 344 KB Output is correct
4 Correct 452 ms 1104 KB Output is correct
5 Correct 965 ms 1056 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 344 KB Output is correct
2 Correct 22 ms 344 KB Output is correct
3 Correct 147 ms 600 KB Output is correct
4 Correct 421 ms 1080 KB Output is correct
5 Correct 892 ms 1444 KB Output is correct
6 Correct 10 ms 344 KB Output is correct
7 Correct 17 ms 344 KB Output is correct
8 Correct 158 ms 344 KB Output is correct
9 Correct 312 ms 612 KB Output is correct
10 Correct 958 ms 1104 KB Output is correct
11 Correct 954 ms 1448 KB Output is correct
12 Correct 922 ms 1276 KB Output is correct
13 Correct 934 ms 880 KB Output is correct

Subtask #3
0.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 344 KB Output is correct
2 Correct 23 ms 344 KB Output is correct
3 Correct 147 ms 344 KB Output is correct
4 Correct 441 ms 880 KB Output is correct
5 Correct 945 ms 1360 KB Output is correct
6 Correct 6 ms 344 KB Output is correct
7 Correct 22 ms 344 KB Output is correct
8 Correct 147 ms 344 KB Output is correct
9 Correct 356 ms 600 KB Output is correct
10 Correct 876 ms 1112 KB Output is correct
11 Correct 969 ms 1156 KB Output is correct
12 Correct 957 ms 1168 KB Output is correct
13 Execution timed out 1002 ms 1264 KB Time limit exceeded
14 Halted 0 ms 0 KB -

Subtask #4
0.0 / 60.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 344 KB Output is correct
2 Correct 32 ms 344 KB Output is correct
3 Partially correct 187 ms 788 KB Output is partially correct
4 Partially correct 469 ms 848 KB Output is partially correct
5 Partially correct 897 ms 1604 KB Output is partially correct
6 Correct 9 ms 344 KB Output is correct
7 Correct 20 ms 344 KB Output is correct
8 Partially correct 171 ms 344 KB Output is partially correct
9 Partially correct 336 ms 840 KB Output is partially correct
10 Partially correct 905 ms 996 KB Output is partially correct
11 Partially correct 897 ms 888 KB Output is partially correct
12 Partially correct 993 ms 1064 KB Output is partially correct
13 Partially correct 951 ms 1152 KB Output is partially correct
14 Correct 7 ms 344 KB Output is correct
15 Correct 8 ms 344 KB Output is correct
16 Incorrect 6 ms 344 KB Incorrect
17 Halted 0 ms 0 KB -