#include <vector>
#include <algorithm>
#include <iostream>
#include <set>
#include <cmath>
#include <map>
#include <random>
#include <cassert>
#include <ctime>
#include <cstdlib>
#include <limits.h>
using namespace std;
class Node {
public:
map<int64_t,int> left;
map<int64_t,int> right;
int64_t bor = 0;
int tot = 0;
int length = 0;
bool okay = true;
void print () {
cout << "TOTAL: " << tot << '\n';
cout << "LEFT\n";
for (auto& p: left) {
cout << p.first << " " << p.second << '\n';
}
cout << "RIGHT\n";
for (auto& p: right) {
cout << p.first << " " << p.second << '\n';
}
cout << '\n';
}
};
vector<int64_t> powr;
Node generate (int64_t x) {
Node ans;
ans.left[powr[x]] = 1;
ans.left[0] = 0;
ans.right[powr[x]] = 1;
ans.right[0] = 0;
ans.tot = 1;
ans.bor = powr[x];
ans.length = 1;
return ans;
}
int chmin (int &x, int y) {
if (x == 0) return (x = y);
if (y == 0) return x;
return (x = min(x, y));
}
Node merge (Node x, Node y) {
if (!x.okay) return y;
if (!y.okay) return x;
Node ans;
ans.left = x.left;
ans.right = y.right;
for (auto& p: y.left) {
ans.left[p.first | x.bor] = chmin(ans.left[p.first | x.bor], p.second + x.length);
}
for (auto& p: x.right) {
ans.right[p.first | y.bor] = chmin(ans.right[p.first | y.bor], p.second + y.length);
}
ans.bor = x.bor | y.bor;
ans.tot = INT_MAX;
ans.length = x.length + y.length;
if (x.bor == ans.bor) {
ans.tot = min(ans.tot, x.tot);
}
if (y.bor == ans.bor) {
ans.tot = min(ans.tot, y.tot);
}
for (auto& p: x.right) {
for (auto& q: y.left) {
if ((p.first | q.first) == ans.bor) {
ans.tot = min(ans.tot, p.second + q.second);
break;
}
}
}
ans.left[0] = ans.right[0] = 0;
return ans;
}
template<class T>
class SegmentTree {
public:
SegmentTree (int N) {
N = (1 << ((int)floor(log2(N - 1)) + 1));
this->N = N;
val.assign(2 * N, ID);
ID.okay = false;
}
void update (int x, T y) {
x += N - 1;
val[x] = y;
while (x != 0) {
x = (x - 1)/2;
val[x].left.clear(), val[x].right.clear();
val[x] = merge(val[2 * x + 1], val[2 * x + 2]);
}
}
void build (int dum, vector<int>& arr, int tl, int tr) {
if (tl == tr) {
if (tl < arr.size()) val[dum] = generate(arr[tl]);
else val[dum].okay = false;
return;
}
build(2 * dum + 1, arr, tl, (tl + tr)/2);
build(2 * dum + 2, arr, (tl + tr)/2 + 1, tr);
val[dum] = merge(val[2 * dum + 1], val[2 * dum + 2]);
//val[dum].print();
}
void build (vector<int> arr) {
build(0, arr, 0, N - 1);
}
T query (int ind, const int l, const int r, int tl, int tr) {
if (tl >= l && tr <= r) {
return val[ind];
}
if (tr < l || tl > r) {
return ID;
}
return merge(query(2 * ind + 1, l, r, tl, (tl + tr)/2), query(2 * ind + 2, l, r, (tl + tr)/2 + 1, tr));
}
T query (int l, int r) {
return query(0, l, r, 0, N - 1);
}
vector<T> val;
private:
T ID;
int N;
};
int main() {
//freopen("balancing.in", "r", stdin);
ios_base::sync_with_stdio(false);
cin.tie(NULL);
int N, K, M;
cin >> N >> K >> M;
SegmentTree<Node> st(N);
vector<int> arr(N);
for (int i = 0; i < N; i++) {
cin >> arr[i];
}
powr = {1};
for (int i = 0; i < 51; i++) {
powr.push_back(powr.back() * 2);
}
st.build(arr);
while (M--) {
int t;
cin >> t;
if (t == 2) {
//cout << st.val[0].bor << " " << powr[K + 1] - 2 << '\n';
if (st.val[0].bor == powr[K + 1] - 2) {
cout << st.val[0].tot << '\n';
} else {
cout << "-1\n";
}
} else {
int p, v; cin >> p >> v; p--;
st.update(p, generate(v));
}
}
}
Compilation message
nekameleoni.cpp: In instantiation of 'void SegmentTree<T>::build(int, std::vector<int>&, int, int) [with T = Node]':
nekameleoni.cpp:118:14: required from 'void SegmentTree<T>::build(std::vector<int>) [with T = Node]'
nekameleoni.cpp:154:17: required from here
nekameleoni.cpp:107:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
107 | if (tl < arr.size()) val[dum] = generate(arr[tl]);
| ~~~^~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
95 ms |
4332 KB |
Output is correct |
| 2 |
Correct |
64 ms |
3692 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
322 ms |
6740 KB |
Output is correct |
| 2 |
Correct |
306 ms |
6356 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
664 ms |
7888 KB |
Output is correct |
| 2 |
Correct |
730 ms |
7640 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Execution timed out |
3097 ms |
30848 KB |
Time limit exceeded |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Execution timed out |
3081 ms |
76360 KB |
Time limit exceeded |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Execution timed out |
3081 ms |
61880 KB |
Time limit exceeded |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Execution timed out |
3101 ms |
88396 KB |
Time limit exceeded |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Execution timed out |
3087 ms |
83020 KB |
Time limit exceeded |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Execution timed out |
3093 ms |
142380 KB |
Time limit exceeded |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Execution timed out |
3089 ms |
142356 KB |
Time limit exceeded |
| 2 |
Halted |
0 ms |
0 KB |
- |
