| # | Submission time | Handle | Problem | Language | Result | Execution time | Memory |
|---|---|---|---|---|---|---|---|
| 960598 | 2024-04-10T16:39:21 Z | TAhmed33 | Longest Trip (IOI23_longesttrip) | C++17 | 90 ms | 2156 KB |
#include "longesttrip.h"
#include <bits/stdc++.h>
using namespace std;
int cnt;
vector <int> tree[256];
bool vis[256];
vector <int> x;
int p[256];
set <int> unvis;
void dfs (int pos) {
vis[pos] = 1; x.push_back(pos); unvis.erase(pos);
while (!unvis.empty()) {
vector <int> t; for (auto i : unvis) t.push_back(i);
if (!are_connected({pos}, t)) break;
int l = 0, r = (int)t.size() - 1, ans = -1;
while (l <= r) {
int mid = (l + r) / 2;
vector <int> g;
for (int i = 0; i <= mid; i++) g.push_back(t[i]);
cnt++; assert(cnt <= 3000);
if (are_connected({pos}, g)) {
r = mid - 1; ans = mid;
} else {
l = mid + 1;
}
}
if (ans == -1) break;
tree[pos].push_back(t[ans]);
p[t[ans]] = pos;
dfs(t[ans]);
}
}
int get (int x) {
if (tree[x].empty()) return x;
return get(tree[x][0]);
}
vector <int> longest_trip (int n, int d) {
cnt = 0;
unvis.clear(); for (int i = 0; i < n; i++) unvis.insert(i);
for (int i = 0; i < n; i++) tree[i].clear();
memset(p, -1, sizeof(p));
memset(vis, 0, sizeof(vis));
x.clear(); dfs(0);
if (!unvis.empty()) {
vector <int> ret = x;
for (int i = 0; i < n; i++) {
if (!vis[i]) {
x.clear(); dfs(i);
if ((int)x.size() > (int)ret.size()) ret = x;
}
}
return ret;
}
int pos = -1;
for (int i = 0; i < n; i++) {
if ((int)tree[i].size() == 2) {
pos = i;
}
}
if (pos == -1) return x;
int u = get(tree[pos][0]), v = get(tree[pos][1]);
if (p[pos] != -1 && !are_connected({p[pos]}, {u})) {
swap(u, v); swap(tree[pos][0], tree[pos][1]);
}
u = tree[pos][0], v = tree[pos][1];
while (!x.empty() && x.back() != p[pos]) x.pop_back();
vector <int> l;
while (true) {
l.push_back(u);
if (tree[u].empty()) break;
u = tree[u][0];
}
reverse(l.begin(), l.end());
for (auto i : l) x.push_back(i);
x.push_back(pos);
while (true) {
x.push_back(v);
if (tree[v].empty()) break;
v = tree[v][0];
}
return x;
}
| # | Verdict | Execution time | Memory | Grader output |
|---|---|---|---|---|
| 1 | Correct | 1 ms | 344 KB | Output is correct |
| 2 | Correct | 13 ms | 1636 KB | Output is correct |
| # | Verdict | Execution time | Memory | Grader output |
|---|---|---|---|---|
| 1 | Correct | 10 ms | 596 KB | Output is correct |
| 2 | Correct | 16 ms | 344 KB | Output is correct |
| 3 | Correct | 30 ms | 464 KB | Output is correct |
| 4 | Correct | 42 ms | 988 KB | Output is correct |
| 5 | Correct | 52 ms | 1632 KB | Output is correct |
| # | Verdict | Execution time | Memory | Grader output |
|---|---|---|---|---|
| 1 | Correct | 12 ms | 344 KB | Output is correct |
| 2 | Correct | 18 ms | 344 KB | Output is correct |
| 3 | Correct | 26 ms | 340 KB | Output is correct |
| 4 | Correct | 45 ms | 1256 KB | Output is correct |
| 5 | Correct | 59 ms | 1696 KB | Output is correct |
| 6 | Correct | 11 ms | 344 KB | Output is correct |
| 7 | Correct | 14 ms | 344 KB | Output is correct |
| 8 | Correct | 29 ms | 796 KB | Output is correct |
| 9 | Correct | 41 ms | 864 KB | Output is correct |
| 10 | Correct | 55 ms | 1184 KB | Output is correct |
| 11 | Correct | 61 ms | 2124 KB | Output is correct |
| 12 | Correct | 61 ms | 1620 KB | Output is correct |
| 13 | Correct | 56 ms | 1836 KB | Output is correct |
| # | Verdict | Execution time | Memory | Grader output |
|---|---|---|---|---|
| 1 | Correct | 9 ms | 344 KB | Output is correct |
| 2 | Correct | 17 ms | 596 KB | Output is correct |
| 3 | Correct | 25 ms | 344 KB | Output is correct |
| 4 | Correct | 43 ms | 1228 KB | Output is correct |
| 5 | Correct | 56 ms | 1580 KB | Output is correct |
| 6 | Correct | 9 ms | 344 KB | Output is correct |
| 7 | Correct | 20 ms | 344 KB | Output is correct |
| 8 | Correct | 26 ms | 344 KB | Output is correct |
| 9 | Correct | 41 ms | 1232 KB | Output is correct |
| 10 | Correct | 55 ms | 1916 KB | Output is correct |
| 11 | Correct | 57 ms | 1176 KB | Output is correct |
| 12 | Correct | 61 ms | 1296 KB | Output is correct |
| 13 | Correct | 64 ms | 1276 KB | Output is correct |
| 14 | Correct | 11 ms | 344 KB | Output is correct |
| 15 | Correct | 13 ms | 344 KB | Output is correct |
| 16 | Correct | 20 ms | 344 KB | Output is correct |
| 17 | Correct | 25 ms | 452 KB | Output is correct |
| 18 | Correct | 28 ms | 344 KB | Output is correct |
| 19 | Correct | 36 ms | 876 KB | Output is correct |
| 20 | Correct | 34 ms | 984 KB | Output is correct |
| 21 | Correct | 54 ms | 1168 KB | Output is correct |
| 22 | Correct | 56 ms | 2156 KB | Output is correct |
| 23 | Correct | 56 ms | 1064 KB | Output is correct |
| 24 | Correct | 59 ms | 1148 KB | Output is correct |
| 25 | Correct | 11 ms | 344 KB | Output is correct |
| 26 | Correct | 12 ms | 344 KB | Output is correct |
| 27 | Correct | 20 ms | 344 KB | Output is correct |
| 28 | Correct | 22 ms | 596 KB | Output is correct |
| 29 | Correct | 21 ms | 344 KB | Output is correct |
| 30 | Correct | 42 ms | 712 KB | Output is correct |
| 31 | Correct | 42 ms | 628 KB | Output is correct |
| 32 | Correct | 36 ms | 464 KB | Output is correct |
| 33 | Correct | 45 ms | 724 KB | Output is correct |
| 34 | Correct | 43 ms | 600 KB | Output is correct |
| 35 | Correct | 50 ms | 976 KB | Output is correct |
| 36 | Correct | 64 ms | 1244 KB | Output is correct |
| 37 | Correct | 67 ms | 1608 KB | Output is correct |
| 38 | Correct | 73 ms | 1664 KB | Output is correct |
| 39 | Correct | 77 ms | 1884 KB | Output is correct |
| 40 | Correct | 84 ms | 1628 KB | Output is correct |
| 41 | Correct | 76 ms | 880 KB | Output is correct |
| 42 | Correct | 90 ms | 1396 KB | Output is correct |
| 43 | Correct | 90 ms | 1592 KB | Output is correct |
| 44 | Correct | 89 ms | 1536 KB | Output is correct |
| 45 | Correct | 12 ms | 344 KB | Output is correct |
| 46 | Correct | 16 ms | 344 KB | Output is correct |
| 47 | Correct | 22 ms | 596 KB | Output is correct |
| 48 | Correct | 20 ms | 344 KB | Output is correct |
| 49 | Correct | 27 ms | 344 KB | Output is correct |
| 50 | Correct | 37 ms | 1216 KB | Output is correct |
| 51 | Correct | 42 ms | 968 KB | Output is correct |
| 52 | Correct | 41 ms | 972 KB | Output is correct |
| 53 | Correct | 43 ms | 720 KB | Output is correct |
| 54 | Correct | 45 ms | 980 KB | Output is correct |
| 55 | Correct | 44 ms | 724 KB | Output is correct |
| 56 | Correct | 57 ms | 1628 KB | Output is correct |
| 57 | Correct | 65 ms | 1624 KB | Output is correct |
| 58 | Correct | 70 ms | 1316 KB | Output is correct |
| 59 | Correct | 70 ms | 1376 KB | Output is correct |
| 60 | Correct | 78 ms | 2104 KB | Output is correct |
| 61 | Correct | 76 ms | 1356 KB | Output is correct |
| 62 | Correct | 78 ms | 1640 KB | Output is correct |
| 63 | Correct | 75 ms | 1672 KB | Output is correct |
| 64 | Correct | 83 ms | 1184 KB | Output is correct |
| # | Verdict | Execution time | Memory | Grader output |
|---|---|---|---|---|
| 1 | Correct | 9 ms | 344 KB | Output is correct |
| 2 | Correct | 14 ms | 344 KB | Output is correct |
| 3 | Correct | 26 ms | 344 KB | Output is correct |
| 4 | Partially correct | 40 ms | 1228 KB | Output is partially correct |
| 5 | Partially correct | 56 ms | 1608 KB | Output is partially correct |
| 6 | Correct | 9 ms | 344 KB | Output is correct |
| 7 | Correct | 16 ms | 348 KB | Output is correct |
| 8 | Correct | 29 ms | 344 KB | Output is correct |
| 9 | Partially correct | 36 ms | 728 KB | Output is partially correct |
| 10 | Partially correct | 57 ms | 1628 KB | Output is partially correct |
| 11 | Partially correct | 60 ms | 1000 KB | Output is partially correct |
| 12 | Partially correct | 64 ms | 1856 KB | Output is partially correct |
| 13 | Partially correct | 56 ms | 1616 KB | Output is partially correct |
| 14 | Correct | 8 ms | 344 KB | Output is correct |
| 15 | Correct | 12 ms | 344 KB | Output is correct |
| 16 | Correct | 18 ms | 344 KB | Output is correct |
| 17 | Correct | 21 ms | 444 KB | Output is correct |
| 18 | Correct | 26 ms | 764 KB | Output is correct |
| 19 | Partially correct | 36 ms | 476 KB | Output is partially correct |
| 20 | Partially correct | 41 ms | 976 KB | Output is partially correct |
| 21 | Correct | 13 ms | 344 KB | Output is correct |
| 22 | Correct | 12 ms | 344 KB | Output is correct |
| 23 | Correct | 24 ms | 344 KB | Output is correct |
| 24 | Correct | 21 ms | 344 KB | Output is correct |
| 25 | Correct | 18 ms | 344 KB | Output is correct |
| 26 | Partially correct | 38 ms | 712 KB | Output is partially correct |
| 27 | Partially correct | 40 ms | 960 KB | Output is partially correct |
| 28 | Correct | 38 ms | 712 KB | Output is correct |
| 29 | Partially correct | 42 ms | 980 KB | Output is partially correct |
| 30 | Partially correct | 46 ms | 720 KB | Output is partially correct |
| 31 | Partially correct | 46 ms | 980 KB | Output is partially correct |
| 32 | Correct | 13 ms | 344 KB | Output is correct |
| 33 | Correct | 14 ms | 344 KB | Output is correct |
| 34 | Correct | 21 ms | 344 KB | Output is correct |
| 35 | Correct | 17 ms | 344 KB | Output is correct |
| 36 | Correct | 16 ms | 344 KB | Output is correct |
| 37 | Partially correct | 37 ms | 452 KB | Output is partially correct |
| 38 | Partially correct | 41 ms | 1216 KB | Output is partially correct |
| 39 | Correct | 36 ms | 704 KB | Output is correct |
| 40 | Partially correct | 41 ms | 484 KB | Output is partially correct |
| 41 | Partially correct | 43 ms | 724 KB | Output is partially correct |
| 42 | Partially correct | 40 ms | 500 KB | Output is partially correct |
| 43 | Partially correct | 61 ms | 1088 KB | Output is partially correct |
| 44 | Partially correct | 61 ms | 1160 KB | Output is partially correct |
| 45 | Partially correct | 59 ms | 1396 KB | Output is partially correct |
| 46 | Partially correct | 64 ms | 1356 KB | Output is partially correct |
| 47 | Partially correct | 55 ms | 1168 KB | Output is partially correct |
| 48 | Partially correct | 71 ms | 1372 KB | Output is partially correct |
| 49 | Partially correct | 70 ms | 1180 KB | Output is partially correct |
| 50 | Partially correct | 75 ms | 884 KB | Output is partially correct |
| 51 | Partially correct | 81 ms | 1396 KB | Output is partially correct |
| 52 | Partially correct | 83 ms | 1132 KB | Output is partially correct |
| 53 | Partially correct | 83 ms | 1644 KB | Output is partially correct |
| 54 | Partially correct | 78 ms | 1596 KB | Output is partially correct |
| 55 | Partially correct | 76 ms | 1848 KB | Output is partially correct |
| 56 | Partially correct | 70 ms | 924 KB | Output is partially correct |
| 57 | Partially correct | 70 ms | 1880 KB | Output is partially correct |
| 58 | Partially correct | 75 ms | 1140 KB | Output is partially correct |
| 59 | Partially correct | 79 ms | 1572 KB | Output is partially correct |
| 60 | Partially correct | 81 ms | 1644 KB | Output is partially correct |
| 61 | Partially correct | 85 ms | 1156 KB | Output is partially correct |
| 62 | Partially correct | 54 ms | 1112 KB | Output is partially correct |
| 63 | Partially correct | 61 ms | 1676 KB | Output is partially correct |
| 64 | Partially correct | 70 ms | 1056 KB | Output is partially correct |
| 65 | Partially correct | 66 ms | 1692 KB | Output is partially correct |
| 66 | Partially correct | 69 ms | 1356 KB | Output is partially correct |
| 67 | Partially correct | 80 ms | 1372 KB | Output is partially correct |
| 68 | Partially correct | 74 ms | 1400 KB | Output is partially correct |
| 69 | Partially correct | 77 ms | 1152 KB | Output is partially correct |
| 70 | Partially correct | 68 ms | 1604 KB | Output is partially correct |
| 71 | Partially correct | 64 ms | 1392 KB | Output is partially correct |
| 72 | Partially correct | 73 ms | 1648 KB | Output is partially correct |
| 73 | Partially correct | 82 ms | 1348 KB | Output is partially correct |
| 74 | Partially correct | 81 ms | 1232 KB | Output is partially correct |
| 75 | Partially correct | 82 ms | 1832 KB | Output is partially correct |
| 76 | Partially correct | 79 ms | 1300 KB | Output is partially correct |
| 77 | Partially correct | 65 ms | 1124 KB | Output is partially correct |
| 78 | Partially correct | 67 ms | 1600 KB | Output is partially correct |
| 79 | Partially correct | 76 ms | 1396 KB | Output is partially correct |
| 80 | Partially correct | 75 ms | 1868 KB | Output is partially correct |
| 81 | Partially correct | 72 ms | 1120 KB | Output is partially correct |
| 82 | Partially correct | 81 ms | 1136 KB | Output is partially correct |