| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 414315 |
2021-05-30T10:26:29 Z |
Blagojce |
Swap (BOI16_swap) |
C++11 |
|
18 ms |
27708 KB |
#include <bits/stdc++.h>
#include <cstdio>
#pragma GCC optimize("O3")
#define fr(i, n, m) for(int i = (n); i < (m); i ++)
#define pb push_back
#define st first
#define nd second
#define pq priority_queue
#define all(x) begin(x), end(x)
using namespace std;
typedef long long ll;
typedef long double ld;
typedef pair<int,int> pii;
const ll inf = 1e18;
const ll mod = 1000000007;
const ld eps = 1e-13;
const ld pi = 3.14159265359;
mt19937 _rand(time(NULL));
clock_t timer = clock();
const int mxn = 500000;
inline int readint(){
int ret=0;
for(char c;;){
c=getchar();
if('0'<=c and c<='9')
ret=ret*10+(c&15);
else
return ret;
}
}
vector<char> digits;
inline void printint(int x){
do{
digits.push_back(x%10|48);
x/=10;
}while(x);
while(not digits.empty())
putchar(digits.back()), digits.pop_back();
}
int n;
int a[mxn];
unordered_map<int, vector<int> > f[mxn];
//vector<int> f[mxn][mxn];
void combine(vector<int> &v1, vector<int> &v2, vector<int> &r){
int p = 0;
int l = 1;
while(p < (int)v1.size()){
fr(k, 0, l){
r.pb(v1[p+k]);
}
fr(k, 0, l){
r.pb(v2[p+k]);
}
p += l;
l *= 2;
}
}
vector<int> g1;
vector<int> g2;
vector<int> cand;
void solve(){
//cin >> n;
n = readint();
fr(i, 1, n+1){
a[i] = readint();
//cin >> a[i];
}
int orgn = n;
int m = n;
while(m+1 - ((m+1)&-(m+1)) != 0){
++m;
}
fr(i, n+1, m+1){
a[i] = i;
}
n = m;
for(int i = n; i >= 1; i --){
cand.clear();
for(int j = i; j >= 1; j /= 2){
cand.pb(a[j]);
if(j != 1){
if(j % 2){
cand.pb(a[j-1]);
}
else{
cand.pb(a[j+1]);
}
}
}
for(auto j : cand){
if(i*2 > n){
f[i][j] = {j};
}
else{
int mi = min(j, min(a[i*2], a[i*2+1]));
if(j == mi){
combine(f[i*2][a[i*2]], f[i*2+1][a[i*2+1]], f[i][j]);
}
else if(a[i*2] == mi){
combine(f[i*2][j], f[i*2+1][a[i*2+1]], f[i][j]);
}
else{
g1.clear();
combine(f[i*2][a[i*2]], f[i*2+1][j], g1);
g2.clear();
combine(f[i*2][j], f[i*2+1][a[i*2]], g2);
f[i][j] = min(g1, g2);
}
f[i][j].insert(f[i][j].begin(), mi);
}
}
if(i*2 <= n){
f[i*2].clear();
f[i*2+1].clear();
}
}
vector<int> ans = f[1][a[1]];
fr(i, 0, orgn){
printint(ans[i]);
putchar(' ');
//cout<<f[1][a[1]][i]<<' ';
}
}
int main(){
digits.reserve(10);
freopen("t.in.25", "r", stdin);
ios_base::sync_with_stdio(false);
cin.tie(NULL);
solve();
}
//
Compilation message
swap.cpp: In function 'int main()':
swap.cpp:146:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
146 | freopen("t.in.25", "r", stdin);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
18 ms |
27708 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
18 ms |
27708 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
18 ms |
27708 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
18 ms |
27708 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
18 ms |
27708 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
