#include <iostream>
#include <vector>
#include <set>
#include <unordered_set>
#include <algorithm>
//#define debug(x) cerr << #x << " " << x << "\n"
#pragma GCC optimize("Ofast")
using namespace std;
typedef long long ll;
typedef pair <int, int> pii;
const int bSize = 40;
const int bits = 15;
const int NMAX = 100000;
const int VMAX = NMAX * 89;
int a[NMAX], n;
int u;
int f[NMAX];
int changer = 0;
int par[NMAX];
struct BLOCK {
int time;
vector <int> v;
};
struct cmp {
bool operator () (int A, int B) {
return a[A] < a[B];
}
};
class DS {
public:
vector <BLOCK> blocks;
vector <pii> changes;
set <int, cmp> vecini;
void baga(int x, int cand) {
if(vecini.find(x) != vecini.end()) {
vecini.erase(x);
} else {
vecini.insert(x);
}
changes.push_back({x, cand});
if(changes.size() % bSize == 0) {
BLOCK nou;
changer++;
nou.v.clear();
nou.time = cand;
for(auto x : vecini) {
nou.v.push_back(x);
}
blocks.push_back(nou);
}
}
} ds[NMAX];
void init(int N, int D, int H[]) {
n = N;
for(int i = 0; i < N; i++) {
a[i] = H[i];
}
}
void curseChanges(int U, int A[], int B[]) {
u = U;
for(int i = 0; i < U; i++) {
int timp = i + 1;
ds[A[i]].baga(B[i], timp);
ds[B[i]].baga(A[i], timp);
}
}
bool cmp(int A, int B) {
if(a[A] != a[B])
return a[A] < a[B];
return A < B;
}
int impX[NMAX];
int impY[NMAX];
int intrebare;
vector <int> parcurgere[2];
int question(int x, int y, int v) {
int r = -1;
parcurgere[0].clear();
parcurgere[1].clear();
intrebare++;
if(u != v) {
int timpX = 0, timpY = 0;
int pas = (1 << 10), r1 = -1;
while(pas) {
if(r + pas < ds[x].blocks.size() && ds[x].blocks[r + pas].time <= v)
r += pas;
if(r1 + pas < ds[y].blocks.size() && ds[y].blocks[r1 + pas].time <= v)
r1 += pas;
pas /= 2;
}
if(r != -1) {
timpX = ds[x].blocks[r].time + 1;
parcurgere[0] = ds[x].blocks[r].v;
}
if(r1 != -1) {
timpY = ds[y].blocks[r1].time + 1;
parcurgere[1] = ds[y].blocks[r1].v;
}
r = -1, pas = (1 << bits), r1 = -1;
while(pas) {
if(r + pas < ds[x].changes.size() && ds[x].changes[r + pas].second < timpX)
r += pas;
if(r1 + pas < ds[y].changes.size() && ds[y].changes[r1 + pas].second < timpY)
r1 += pas;
pas /= 2;
}
r++;
for(; r < ds[x].changes.size() && ds[x].changes[r].second <= v; r++) {
pii change = ds[x].changes[r];
parcurgere[0].push_back(change.first);
}
r1++;
for(; r1 < ds[y].changes.size() && ds[y].changes[r1].second <= v; r1++) {
pii change = ds[y].changes[r1];
parcurgere[1].push_back(change.first);
}
if(!parcurgere[0].size() || !parcurgere[1].size()) return 1e9;
sort(parcurgere[0].begin(), parcurgere[0].end(), cmp);
sort(parcurgere[1].begin(), parcurgere[1].end(), cmp);
} else {
vector <int> nou(ds[x].vecini.begin(), ds[x].vecini.end());
parcurgere[0] = nou;
vector <int> nou2(ds[y].vecini.begin(), ds[y].vecini.end());
parcurgere[1] = nou2;
}
for(auto x : parcurgere[0]) {
impX[x] = 0;
}
for(auto x : parcurgere[0]) {
impX[x]++;
}
for(auto x : parcurgere[1]) {
impY[x] = 0;
}
for(auto x : parcurgere[1]) {
impY[x]++;
}
int minim = 1e9;
int j = 0, i = 0;
while(i < parcurgere[0].size() && j < parcurgere[1].size()) {
if(impX[parcurgere[0][i]] % 2 == 0) {
i++;
continue;
}
if(impY[parcurgere[1][j]] % 2 == 0) {
j++;
continue;
}
minim = min(minim, abs(a[parcurgere[0][i]] - a[parcurgere[1][j]]));
if(a[parcurgere[0][i]] < a[parcurgere[1][j]])
i++;
else
j++;
}
return minim;
}
Compilation message
potion.cpp: In function 'int question(int, int, int)':
potion.cpp:99:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<BLOCK>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
99 | if(r + pas < ds[x].blocks.size() && ds[x].blocks[r + pas].time <= v)
| ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~
potion.cpp:101:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<BLOCK>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
101 | if(r1 + pas < ds[y].blocks.size() && ds[y].blocks[r1 + pas].time <= v)
| ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~
potion.cpp:115:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
115 | if(r + pas < ds[x].changes.size() && ds[x].changes[r + pas].second < timpX)
| ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
potion.cpp:117:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
117 | if(r1 + pas < ds[y].changes.size() && ds[y].changes[r1 + pas].second < timpY)
| ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
potion.cpp:122:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
122 | for(; r < ds[x].changes.size() && ds[x].changes[r].second <= v; r++) {
| ~~^~~~~~~~~~~~~~~~~~~~~~
potion.cpp:127:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
127 | for(; r1 < ds[y].changes.size() && ds[y].changes[r1].second <= v; r1++) {
| ~~~^~~~~~~~~~~~~~~~~~~~~~
potion.cpp:155:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
155 | while(i < parcurgere[0].size() && j < parcurgere[1].size()) {
| ~~^~~~~~~~~~~~~~~~~~~~~~
potion.cpp:155:41: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
155 | while(i < parcurgere[0].size() && j < parcurgere[1].size()) {
| ~~^~~~~~~~~~~~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
5 ms |
9680 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
7 ms |
9808 KB |
Output is correct |
| 2 |
Correct |
6 ms |
9808 KB |
Output is correct |
| 3 |
Correct |
6 ms |
9808 KB |
Output is correct |
| 4 |
Correct |
18 ms |
11388 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
342 ms |
38248 KB |
Output is correct |
| 2 |
Correct |
323 ms |
38272 KB |
Output is correct |
| 3 |
Correct |
174 ms |
17004 KB |
Output is correct |
| 4 |
Correct |
2136 ms |
30304 KB |
Output is correct |
| 5 |
Correct |
758 ms |
36736 KB |
Output is correct |
| 6 |
Execution timed out |
3024 ms |
30668 KB |
Time limit exceeded |
| 7 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
170 ms |
24052 KB |
Incorrect |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
47 ms |
11220 KB |
Output is correct |
| 2 |
Correct |
105 ms |
10192 KB |
Output is correct |
| 3 |
Correct |
186 ms |
10220 KB |
Output is correct |
| 4 |
Correct |
756 ms |
10832 KB |
Output is correct |
| 5 |
Correct |
695 ms |
11048 KB |
Output is correct |
| 6 |
Correct |
88 ms |
10960 KB |
Output is correct |
| 7 |
Correct |
620 ms |
10444 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
5 ms |
9680 KB |
Output is correct |
| 2 |
Correct |
7 ms |
9808 KB |
Output is correct |
| 3 |
Correct |
6 ms |
9808 KB |
Output is correct |
| 4 |
Correct |
6 ms |
9808 KB |
Output is correct |
| 5 |
Correct |
18 ms |
11388 KB |
Output is correct |
| 6 |
Correct |
342 ms |
38248 KB |
Output is correct |
| 7 |
Correct |
323 ms |
38272 KB |
Output is correct |
| 8 |
Correct |
174 ms |
17004 KB |
Output is correct |
| 9 |
Correct |
2136 ms |
30304 KB |
Output is correct |
| 10 |
Correct |
758 ms |
36736 KB |
Output is correct |
| 11 |
Execution timed out |
3024 ms |
30668 KB |
Time limit exceeded |
| 12 |
Halted |
0 ms |
0 KB |
- |
