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Submission #76585

# Submission time Handle Problem Language Result Execution time Memory
76585 2018-09-15T05:23:38 Z tmwilliamlin168 Swap (BOI16_swap) C++14
68 / 100
 756 ms 263168 KB 
#include <bits/stdc++.h>
using namespace std;

const int mxN=2e5;
int n, a[mxN+1], cdi;
unordered_map<int, int> di[mxN];
vector<int> dp[mxN*18*2];

void mrg(vector<int> &v, vector<int> &a, vector<int> &b) {
	for(int l=1, i=0, j=0; i<a.size()||j<b.size(); i+=l, j+=l, l*=2) {
		for(int k=0; k<l&&i+k<a.size(); ++k)
			v.push_back(a[i+k]);
		for(int k=0; k<l&&j+k<b.size(); ++k)
			v.push_back(b[j+k]);
	}
}

int c(int i, int b) {
	auto it=di[i].find(b);
	if(it!=di[i].end())
		return it->second;
	int r=cdi++;
	di[i][b]=r;
	if(2*i+1<=n) {
		if(a[2*i+1]<b&&a[2*i+1]<a[2*i]) {
			vector<int> v1={a[2*i+1]}, v2={a[2*i+1]};
			mrg(v1, dp[c(2*i, a[2*i])], dp[c(2*i+1, b)]);
			mrg(v2, dp[c(2*i, b)], dp[c(2*i+1, a[2*i])]);
			dp[r]=min(v1, v2);
			vector<int> t1, t2;
			v1.swap(t1);
			v2.swap(t2);
		} else {
			dp[r]={min(b, a[2*i])};
			mrg(dp[r], dp[c(2*i, max(b, a[2*i]))], dp[c(2*i+1, a[2*i+1])]);
		}
	} else if(2*i<=n)
		dp[r]={min(b, a[2*i]), max(b, a[2*i])};
	else
		dp[r]={b};
	return r;
}

int main() {
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	
	cin >> n;
	for(int i=1; i<=n; ++i)
		cin >> a[i];
	for(int b : dp[c(1, a[1])])
		cout << b << " ";
}

Compilation message

swap.cpp: In function 'void mrg(std::vector<int>&, std::vector<int>&, std::vector<int>&)':
swap.cpp:10:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int l=1, i=0, j=0; i<a.size()||j<b.size(); i+=l, j+=l, l*=2) {
                         ~^~~~~~~~~
swap.cpp:10:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int l=1, i=0, j=0; i<a.size()||j<b.size(); i+=l, j+=l, l*=2) {
                                     ~^~~~~~~~~
swap.cpp:11:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int k=0; k<l&&i+k<a.size(); ++k)
                     ~~~^~~~~~~~~
swap.cpp:13:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int k=0; k<l&&j+k<b.size(); ++k)
                     ~~~^~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 157 ms 180344 KB Output is correct
2 Correct 155 ms 180480 KB Output is correct
3 Correct 161 ms 180612 KB Output is correct
4 Correct 165 ms 180688 KB Output is correct
5 Correct 164 ms 180688 KB Output is correct

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 157 ms 180344 KB Output is correct
2 Correct 155 ms 180480 KB Output is correct
3 Correct 161 ms 180612 KB Output is correct
4 Correct 165 ms 180688 KB Output is correct
5 Correct 164 ms 180688 KB Output is correct
6 Correct 157 ms 180760 KB Output is correct
7 Correct 160 ms 180776 KB Output is correct
8 Correct 157 ms 180840 KB Output is correct
9 Correct 158 ms 180968 KB Output is correct
10 Correct 162 ms 180968 KB Output is correct

Subtask #3
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 157 ms 180344 KB Output is correct
2 Correct 155 ms 180480 KB Output is correct
3 Correct 161 ms 180612 KB Output is correct
4 Correct 165 ms 180688 KB Output is correct
5 Correct 164 ms 180688 KB Output is correct
6 Correct 157 ms 180760 KB Output is correct
7 Correct 160 ms 180776 KB Output is correct
8 Correct 157 ms 180840 KB Output is correct
9 Correct 158 ms 180968 KB Output is correct
10 Correct 162 ms 180968 KB Output is correct
11 Correct 159 ms 181280 KB Output is correct
12 Correct 175 ms 181444 KB Output is correct
13 Correct 161 ms 181444 KB Output is correct
14 Correct 165 ms 181756 KB Output is correct
15 Correct 165 ms 181780 KB Output is correct

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 157 ms 180344 KB Output is correct
2 Correct 155 ms 180480 KB Output is correct
3 Correct 161 ms 180612 KB Output is correct
4 Correct 165 ms 180688 KB Output is correct
5 Correct 164 ms 180688 KB Output is correct
6 Correct 157 ms 180760 KB Output is correct
7 Correct 160 ms 180776 KB Output is correct
8 Correct 157 ms 180840 KB Output is correct
9 Correct 158 ms 180968 KB Output is correct
10 Correct 162 ms 180968 KB Output is correct
11 Correct 159 ms 181280 KB Output is correct
12 Correct 175 ms 181444 KB Output is correct
13 Correct 161 ms 181444 KB Output is correct
14 Correct 165 ms 181756 KB Output is correct
15 Correct 165 ms 181780 KB Output is correct
16 Correct 239 ms 196208 KB Output is correct
17 Correct 248 ms 196308 KB Output is correct
18 Correct 236 ms 197008 KB Output is correct
19 Correct 756 ms 252404 KB Output is correct
20 Correct 736 ms 252404 KB Output is correct

Subtask #5
0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 157 ms 180344 KB Output is correct
2 Correct 155 ms 180480 KB Output is correct
3 Correct 161 ms 180612 KB Output is correct
4 Correct 165 ms 180688 KB Output is correct
5 Correct 164 ms 180688 KB Output is correct
6 Correct 157 ms 180760 KB Output is correct
7 Correct 160 ms 180776 KB Output is correct
8 Correct 157 ms 180840 KB Output is correct
9 Correct 158 ms 180968 KB Output is correct
10 Correct 162 ms 180968 KB Output is correct
11 Correct 159 ms 181280 KB Output is correct
12 Correct 175 ms 181444 KB Output is correct
13 Correct 161 ms 181444 KB Output is correct
14 Correct 165 ms 181756 KB Output is correct
15 Correct 165 ms 181780 KB Output is correct
16 Correct 239 ms 196208 KB Output is correct
17 Correct 248 ms 196308 KB Output is correct
18 Correct 236 ms 197008 KB Output is correct
19 Correct 756 ms 252404 KB Output is correct
20 Correct 736 ms 252404 KB Output is correct
21 Correct 560 ms 252404 KB Output is correct
22 Correct 636 ms 252404 KB Output is correct
23 Correct 546 ms 252404 KB Output is correct
24 Runtime error 685 ms 263168 KB Execution killed with signal 9 (could be triggered by violating memory limits)
25 Halted 0 ms 0 KB -