oj.uz

답안 #414278

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
414278 2021-05-30T09:48:17 Z Blagojce Swap (BOI16_swap) C++11
48 / 100
 1000 ms 251668 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 = 400000;
 
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(int a, int x, int b, int y, vector<int> &r){
	int p = 0;
	int l = 1;
	
	while(p < (int)f[a][x].size()){
		fr(k, 0, l){
			r.pb(f[a][x][p+k]);
		}
		fr(k, 0, l){
			r.pb(f[b][y][p+k]);
		}
		p += l;
		l *= 2;
	}
	
}
 
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 --){
		vector<int> cand;
		
		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(i*2, a[i*2], i*2+1, a[i*2+1], f[i][j]);
				}
				else if(a[i*2] == mi){
					combine(i*2, j, i*2+1, a[i*2+1], f[i][j]);
				}
				else{
					vector<int> g1;
					combine(i*2, a[i*2], i*2+1, j, g1);
					vector<int> g2;
					combine(i*2, j, i*2+1, a[i*2], g2);
					f[i][j] = min(g1, g2);
				}
				f[i][j].insert(f[i][j].begin(), mi);	
			}
		}
	}
	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.16", "r", stdin);
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	solve();
}
//

Subtask #1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 15 ms 22276 KB Output is correct
2 Correct 16 ms 22212 KB Output is correct
3 Correct 14 ms 22200 KB Output is correct
4 Correct 17 ms 22276 KB Output is correct
5 Correct 14 ms 22192 KB Output is correct

Subtask #2
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 15 ms 22276 KB Output is correct
2 Correct 16 ms 22212 KB Output is correct
3 Correct 14 ms 22200 KB Output is correct
4 Correct 17 ms 22276 KB Output is correct
5 Correct 14 ms 22192 KB Output is correct
6 Correct 16 ms 22292 KB Output is correct
7 Correct 15 ms 22220 KB Output is correct
8 Correct 14 ms 22220 KB Output is correct
9 Correct 17 ms 22260 KB Output is correct
10 Correct 15 ms 22260 KB Output is correct

Subtask #3
27.0 / 27.0

# 결과 실행 시간 메모리 Grader output
1 Correct 15 ms 22276 KB Output is correct
2 Correct 16 ms 22212 KB Output is correct
3 Correct 14 ms 22200 KB Output is correct
4 Correct 17 ms 22276 KB Output is correct
5 Correct 14 ms 22192 KB Output is correct
6 Correct 16 ms 22292 KB Output is correct
7 Correct 15 ms 22220 KB Output is correct
8 Correct 14 ms 22220 KB Output is correct
9 Correct 17 ms 22260 KB Output is correct
10 Correct 15 ms 22260 KB Output is correct
11 Correct 21 ms 24012 KB Output is correct
12 Correct 25 ms 24032 KB Output is correct
13 Correct 21 ms 24012 KB Output is correct
14 Correct 26 ms 24132 KB Output is correct
15 Correct 26 ms 24132 KB Output is correct

Subtask #4
0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 15 ms 22276 KB Output is correct
2 Correct 16 ms 22212 KB Output is correct
3 Correct 14 ms 22200 KB Output is correct
4 Correct 17 ms 22276 KB Output is correct
5 Correct 14 ms 22192 KB Output is correct
6 Correct 16 ms 22292 KB Output is correct
7 Correct 15 ms 22220 KB Output is correct
8 Correct 14 ms 22220 KB Output is correct
9 Correct 17 ms 22260 KB Output is correct
10 Correct 15 ms 22260 KB Output is correct
11 Correct 21 ms 24012 KB Output is correct
12 Correct 25 ms 24032 KB Output is correct
13 Correct 21 ms 24012 KB Output is correct
14 Correct 26 ms 24132 KB Output is correct
15 Correct 26 ms 24132 KB Output is correct
16 Execution timed out 1101 ms 251668 KB Time limit exceeded
17 Halted 0 ms 0 KB -

Subtask #5
0 / 32.0

# 결과 실행 시간 메모리 Grader output
1 Correct 15 ms 22276 KB Output is correct
2 Correct 16 ms 22212 KB Output is correct
3 Correct 14 ms 22200 KB Output is correct
4 Correct 17 ms 22276 KB Output is correct
5 Correct 14 ms 22192 KB Output is correct
6 Correct 16 ms 22292 KB Output is correct
7 Correct 15 ms 22220 KB Output is correct
8 Correct 14 ms 22220 KB Output is correct
9 Correct 17 ms 22260 KB Output is correct
10 Correct 15 ms 22260 KB Output is correct
11 Correct 21 ms 24012 KB Output is correct
12 Correct 25 ms 24032 KB Output is correct
13 Correct 21 ms 24012 KB Output is correct
14 Correct 26 ms 24132 KB Output is correct
15 Correct 26 ms 24132 KB Output is correct
16 Execution timed out 1101 ms 251668 KB Time limit exceeded
17 Halted 0 ms 0 KB -