| # | Submission time | Handle | Problem | Language | Result | Execution time | Memory |
|---|---|---|---|---|---|---|---|
| 1060284 | 2024-08-15T12:38:53 Z | aykhn | Longest Trip (IOI23_longesttrip) | C++17 | 58 ms | 1840 KB |
#include <bits/stdc++.h>
#include "longesttrip.h"
using namespace std;
map<pair<vector<int>, vector<int>>, int> mp;
int ask(vector<int> a, vector<int> b)
{
if (a.empty() || b.empty()) return 0;
if (mp.find({a, b}) != mp.end()) return mp[{a, b}];
return mp[{a, b}] = mp[{b, a}] = are_connected(a, b);
}
vector<int> longest_trip(int n, int D)
{
mp.clear();
vector<int> v1, v2;
v1.push_back(0);
for (int i = 1; i < n; i++)
{
if (ask(v1, {i}) && ask(v2, {i}))
{
int id1 = -1, id2 = -1;
int lx = 0, rx = (int)v1.size() - 1;
while (lx < rx)
{
int m = (lx + rx) >> 1;
vector<int> q;
for (int i = lx; i <= m; i++) q.push_back(v1[i]);
if (ask(q, {i})) rx = m;
else lx = m + 1;
}
id1 = lx;
lx = 0, rx = (int)v2.size() - 1;
while (lx < rx)
{
int m = (lx + rx) >> 1;
vector<int> q;
for (int i = lx; i <= m; i++) q.push_back(v2[i]);
if (ask(q, {i})) rx = m;
else lx = m + 1;
}
id2 = lx;
vector<int> nw;
for (int j = (id2 + 1) % v2.size(); 1; j = (j + 1) % v2.size())
{
nw.push_back(v2[j]);
if (j == id2) break;
}
nw.push_back(i), nw.push_back(v1[id1]);
for (int j = (id1 + 1) % v1.size(); j != id1; j = (j + 1) % v1.size())
{
nw.push_back(v1[j]);
}
v2.clear();
v1 = nw;
}
else if (ask(v1, {i}))
{
vector<int> nw;
if (ask({v1.back()}, {i}))
{
nw = v1;
nw.push_back(i);
}
else
{
int l = 0, r = (int)v1.size() - 1;
while (l < r)
{
int mid = (l + r) >> 1;
vector<int> x;
for (int j = 0; j <= mid; j++)
{
x.push_back(v1[j]);
}
if (ask(x, {i})) r = mid;
else l = mid + 1;
}
int idx = l;
nw.push_back(i), nw.push_back(v1[idx]);
for (int j = (idx + 1) % v1.size(); j != idx; j = (j + 1) % v1.size())
{
nw.push_back(v1[j]);
}
}
v1 = nw;
}
else if (ask(v2, {i}))
{
vector<int> nw;
if (ask({v2.back()}, {i}))
{
nw = v2;
nw.push_back(i);
}
else
{
int l = 0, r = (int)v2.size() - 1;
while (l < r)
{
int mid = (l + r) >> 1;
vector<int> x;
for (int j = 0; j <= mid; j++)
{
x.push_back(v2[j]);
}
if (ask(x, {i})) r = mid;
else l = mid + 1;
}
int idx = l;
nw.push_back(i), nw.push_back(v2[idx]);
for (int j = (idx + 1) % v2.size(); j != idx; j = (j + 1) % v2.size())
{
nw.push_back(v2[j]);
}
}
v2 = nw;
}
else v2.push_back(i);
}
if (v1.size() > v2.size()) return v1;
else return v2;
};
| # | Verdict | Execution time | Memory | Grader output |
|---|---|---|---|---|
| 1 | Correct | 0 ms | 344 KB | Output is correct |
| 2 | Correct | 8 ms | 1112 KB | Output is correct |
| # | Verdict | Execution time | Memory | Grader output |
|---|---|---|---|---|
| 1 | Correct | 10 ms | 344 KB | Output is correct |
| 2 | Correct | 13 ms | 344 KB | Output is correct |
| 3 | Correct | 19 ms | 476 KB | Output is correct |
| 4 | Correct | 25 ms | 600 KB | Output is correct |
| 5 | Correct | 30 ms | 1220 KB | Output is correct |
| # | Verdict | Execution time | Memory | Grader output |
|---|---|---|---|---|
| 1 | Correct | 11 ms | 340 KB | Output is correct |
| 2 | Correct | 16 ms | 344 KB | Output is correct |
| 3 | Correct | 19 ms | 600 KB | Output is correct |
| 4 | Correct | 23 ms | 624 KB | Output is correct |
| 5 | Correct | 23 ms | 1360 KB | Output is correct |
| 6 | Correct | 11 ms | 344 KB | Output is correct |
| 7 | Correct | 14 ms | 344 KB | Output is correct |
| 8 | Correct | 12 ms | 344 KB | Output is correct |
| 9 | Correct | 16 ms | 564 KB | Output is correct |
| 10 | Correct | 29 ms | 856 KB | Output is correct |
| 11 | Correct | 22 ms | 760 KB | Output is correct |
| 12 | Correct | 32 ms | 772 KB | Output is correct |
| 13 | Correct | 35 ms | 1840 KB | Output is correct |
| # | Verdict | Execution time | Memory | Grader output |
|---|---|---|---|---|
| 1 | Correct | 7 ms | 344 KB | Output is correct |
| 2 | Correct | 10 ms | 344 KB | Output is correct |
| 3 | Correct | 13 ms | 344 KB | Output is correct |
| 4 | Correct | 26 ms | 856 KB | Output is correct |
| 5 | Correct | 31 ms | 1196 KB | Output is correct |
| 6 | Correct | 12 ms | 344 KB | Output is correct |
| 7 | Correct | 16 ms | 344 KB | Output is correct |
| 8 | Correct | 20 ms | 600 KB | Output is correct |
| 9 | Correct | 17 ms | 572 KB | Output is correct |
| 10 | Correct | 26 ms | 1196 KB | Output is correct |
| 11 | Correct | 32 ms | 928 KB | Output is correct |
| 12 | Correct | 37 ms | 1104 KB | Output is correct |
| 13 | Correct | 34 ms | 1108 KB | Output is correct |
| 14 | Correct | 7 ms | 344 KB | Output is correct |
| 15 | Correct | 13 ms | 344 KB | Output is correct |
| 16 | Correct | 25 ms | 700 KB | Output is correct |
| 17 | Correct | 30 ms | 344 KB | Output is correct |
| 18 | Correct | 19 ms | 340 KB | Output is correct |
| 19 | Correct | 28 ms | 880 KB | Output is correct |
| 20 | Correct | 31 ms | 884 KB | Output is correct |
| 21 | Correct | 41 ms | 1112 KB | Output is correct |
| 22 | Correct | 44 ms | 1104 KB | Output is correct |
| 23 | Correct | 39 ms | 856 KB | Output is correct |
| 24 | Correct | 32 ms | 1136 KB | Output is correct |
| 25 | Correct | 12 ms | 344 KB | Output is correct |
| 26 | Correct | 11 ms | 344 KB | Output is correct |
| 27 | Correct | 13 ms | 344 KB | Output is correct |
| 28 | Correct | 13 ms | 344 KB | Output is correct |
| 29 | Correct | 17 ms | 344 KB | Output is correct |
| 30 | Correct | 25 ms | 344 KB | Output is correct |
| 31 | Correct | 26 ms | 596 KB | Output is correct |
| 32 | Correct | 24 ms | 600 KB | Output is correct |
| 33 | Correct | 28 ms | 344 KB | Output is correct |
| 34 | Correct | 19 ms | 344 KB | Output is correct |
| 35 | Correct | 31 ms | 856 KB | Output is correct |
| 36 | Correct | 31 ms | 796 KB | Output is correct |
| 37 | Correct | 49 ms | 984 KB | Output is correct |
| 38 | Correct | 34 ms | 1092 KB | Output is correct |
| 39 | Correct | 44 ms | 1100 KB | Output is correct |
| 40 | Correct | 29 ms | 856 KB | Output is correct |
| 41 | Correct | 37 ms | 1112 KB | Output is correct |
| 42 | Correct | 37 ms | 1212 KB | Output is correct |
| 43 | Correct | 29 ms | 1224 KB | Output is correct |
| 44 | Correct | 34 ms | 972 KB | Output is correct |
| 45 | Correct | 11 ms | 344 KB | Output is correct |
| 46 | Correct | 10 ms | 344 KB | Output is correct |
| 47 | Correct | 16 ms | 344 KB | Output is correct |
| 48 | Correct | 21 ms | 344 KB | Output is correct |
| 49 | Correct | 14 ms | 344 KB | Output is correct |
| 50 | Correct | 24 ms | 344 KB | Output is correct |
| 51 | Correct | 32 ms | 592 KB | Output is correct |
| 52 | Correct | 34 ms | 344 KB | Output is correct |
| 53 | Correct | 22 ms | 856 KB | Output is correct |
| 54 | Correct | 22 ms | 600 KB | Output is correct |
| 55 | Correct | 26 ms | 600 KB | Output is correct |
| 56 | Correct | 22 ms | 856 KB | Output is correct |
| 57 | Correct | 29 ms | 1160 KB | Output is correct |
| 58 | Correct | 58 ms | 1560 KB | Output is correct |
| 59 | Correct | 48 ms | 1296 KB | Output is correct |
| 60 | Correct | 34 ms | 1308 KB | Output is correct |
| 61 | Correct | 40 ms | 1112 KB | Output is correct |
| 62 | Correct | 40 ms | 1324 KB | Output is correct |
| 63 | Correct | 37 ms | 1308 KB | Output is correct |
| 64 | Correct | 42 ms | 1104 KB | Output is correct |
| # | Verdict | Execution time | Memory | Grader output |
|---|---|---|---|---|
| 1 | Correct | 11 ms | 344 KB | Output is correct |
| 2 | Correct | 15 ms | 344 KB | Output is correct |
| 3 | Correct | 19 ms | 344 KB | Output is correct |
| 4 | Correct | 24 ms | 600 KB | Output is correct |
| 5 | Partially correct | 38 ms | 952 KB | Output is partially correct |
| 6 | Correct | 10 ms | 344 KB | Output is correct |
| 7 | Correct | 11 ms | 344 KB | Output is correct |
| 8 | Correct | 20 ms | 344 KB | Output is correct |
| 9 | Correct | 20 ms | 592 KB | Output is correct |
| 10 | Partially correct | 36 ms | 856 KB | Output is partially correct |
| 11 | Partially correct | 31 ms | 920 KB | Output is partially correct |
| 12 | Partially correct | 22 ms | 856 KB | Output is partially correct |
| 13 | Partially correct | 26 ms | 1112 KB | Output is partially correct |
| 14 | Correct | 13 ms | 344 KB | Output is correct |
| 15 | Correct | 17 ms | 344 KB | Output is correct |
| 16 | Correct | 24 ms | 600 KB | Output is correct |
| 17 | Correct | 21 ms | 344 KB | Output is correct |
| 18 | Correct | 23 ms | 500 KB | Output is correct |
| 19 | Correct | 31 ms | 592 KB | Output is correct |
| 20 | Correct | 33 ms | 600 KB | Output is correct |
| 21 | Correct | 11 ms | 344 KB | Output is correct |
| 22 | Correct | 9 ms | 344 KB | Output is correct |
| 23 | Correct | 12 ms | 344 KB | Output is correct |
| 24 | Correct | 18 ms | 344 KB | Output is correct |
| 25 | Correct | 21 ms | 344 KB | Output is correct |
| 26 | Correct | 25 ms | 340 KB | Output is correct |
| 27 | Correct | 22 ms | 848 KB | Output is correct |
| 28 | Correct | 30 ms | 344 KB | Output is correct |
| 29 | Correct | 25 ms | 344 KB | Output is correct |
| 30 | Correct | 23 ms | 344 KB | Output is correct |
| 31 | Correct | 19 ms | 344 KB | Output is correct |
| 32 | Correct | 10 ms | 344 KB | Output is correct |
| 33 | Correct | 14 ms | 344 KB | Output is correct |
| 34 | Correct | 14 ms | 344 KB | Output is correct |
| 35 | Correct | 17 ms | 344 KB | Output is correct |
| 36 | Correct | 13 ms | 344 KB | Output is correct |
| 37 | Partially correct | 18 ms | 508 KB | Output is partially correct |
| 38 | Correct | 26 ms | 856 KB | Output is correct |
| 39 | Correct | 24 ms | 556 KB | Output is correct |
| 40 | Partially correct | 18 ms | 600 KB | Output is partially correct |
| 41 | Correct | 17 ms | 344 KB | Output is correct |
| 42 | Partially correct | 37 ms | 596 KB | Output is partially correct |
| 43 | Partially correct | 38 ms | 1028 KB | Output is partially correct |
| 44 | Partially correct | 28 ms | 1268 KB | Output is partially correct |
| 45 | Partially correct | 28 ms | 1112 KB | Output is partially correct |
| 46 | Partially correct | 34 ms | 1244 KB | Output is partially correct |
| 47 | Partially correct | 29 ms | 1104 KB | Output is partially correct |
| 48 | Partially correct | 27 ms | 856 KB | Output is partially correct |
| 49 | Partially correct | 29 ms | 984 KB | Output is partially correct |
| 50 | Partially correct | 32 ms | 1360 KB | Output is partially correct |
| 51 | Partially correct | 33 ms | 1104 KB | Output is partially correct |
| 52 | Partially correct | 32 ms | 1104 KB | Output is partially correct |
| 53 | Partially correct | 29 ms | 1104 KB | Output is partially correct |
| 54 | Partially correct | 41 ms | 856 KB | Output is partially correct |
| 55 | Partially correct | 38 ms | 1368 KB | Output is partially correct |
| 56 | Partially correct | 36 ms | 1112 KB | Output is partially correct |
| 57 | Partially correct | 30 ms | 1000 KB | Output is partially correct |
| 58 | Partially correct | 33 ms | 1112 KB | Output is partially correct |
| 59 | Partially correct | 35 ms | 956 KB | Output is partially correct |
| 60 | Partially correct | 38 ms | 936 KB | Output is partially correct |
| 61 | Partially correct | 32 ms | 964 KB | Output is partially correct |
| 62 | Partially correct | 27 ms | 1112 KB | Output is partially correct |
| 63 | Partially correct | 29 ms | 1028 KB | Output is partially correct |
| 64 | Partially correct | 53 ms | 1368 KB | Output is partially correct |
| 65 | Partially correct | 35 ms | 1316 KB | Output is partially correct |
| 66 | Partially correct | 34 ms | 1104 KB | Output is partially correct |
| 67 | Partially correct | 42 ms | 1112 KB | Output is partially correct |
| 68 | Partially correct | 47 ms | 1208 KB | Output is partially correct |
| 69 | Partially correct | 37 ms | 1104 KB | Output is partially correct |
| 70 | Partially correct | 39 ms | 1360 KB | Output is partially correct |
| 71 | Partially correct | 29 ms | 1256 KB | Output is partially correct |
| 72 | Partially correct | 33 ms | 1084 KB | Output is partially correct |
| 73 | Partially correct | 39 ms | 1360 KB | Output is partially correct |
| 74 | Partially correct | 31 ms | 1112 KB | Output is partially correct |
| 75 | Partially correct | 39 ms | 1044 KB | Output is partially correct |
| 76 | Partially correct | 40 ms | 1368 KB | Output is partially correct |
| 77 | Partially correct | 36 ms | 1112 KB | Output is partially correct |
| 78 | Partially correct | 32 ms | 1104 KB | Output is partially correct |
| 79 | Partially correct | 32 ms | 1244 KB | Output is partially correct |
| 80 | Partially correct | 33 ms | 1048 KB | Output is partially correct |
| 81 | Partially correct | 38 ms | 960 KB | Output is partially correct |
| 82 | Partially correct | 48 ms | 1400 KB | Output is partially correct |